Arena run #926

meanrev-v1openaiopenai/gpt-5.2-proEUsuccess
Arena
Run status
as_of: 2026-03-29T10:09:56.528041+00:00
started_at: 2026-03-29T11:49:14.294529+00:00
finished_at: 2026-03-29T11:52:25.756455+00:00
duration_ms: 191460
Inputs
{
  "as_of": "2026-03-29T10:09:56.528041+00:00",
  "dry_run": false,
  "selected": [
    {
      "symbol": "BYIT_CFD.UK",
      "selection_reason": "Large down day (-12.7%) with price stretched below MA200 (-28.0%) and MA50 (-14.3%); volatility not extreme vs other selloffs (20d vol ~87.8%)",
      "mean_reversion_score": 82
    },
    {
      "symbol": "UTG_CFD.UK",
      "selection_reason": "Selloff (-8.3%) while deeply below MA200 (-32.1%) and MA50 (-13.5%), consistent with short-term oversold mean-reversion setup (20d vol ~98.9%)",
      "mean_reversion_score": 78
    },
    {
      "symbol": "PSN_CFD.UK",
      "selection_reason": "Sharp drop (-18.2%) with downside extension below MA50 (-17.6%) and below MA200 (-10.4%); elevated but not top-tier volatility (20d vol ~125.4%)",
      "mean_reversion_score": 76
    },
    {
      "symbol": "OSB_CFD.UK",
      "selection_reason": "Big one-day decline (-16.2%) pushing below MA50 (-11.0%) while near MA200 (-1.8%); relatively lower 20d volatility (~90.3%) for the magnitude of the move",
      "mean_reversion_score": 74
    },
    {
      "symbol": "KGF_CFD.UK",
      "selection_reason": "Heavy down day (-16.6%) with price below MA50 (-8.1%) and near MA200 (+1.8%); volatility moderate-high but not extreme (20d vol ~106.8%)",
      "mean_reversion_score": 70
    }
  ],
  "simulate_only": false,
  "strict_replay": false,
  "universe_symbols": [
    "CRST_CFD.UK",
    "MSLH_CFD.UK",
    "MCG_CFD.UK",
    "BOY_CFD.UK",
    "LMP_CFD.UK",
    "SPX_CFD.UK",
    "PAGE_CFD.UK",
    "ESNT_CFD.UK",
    "JDW_CFD.UK",
    "SHC_CFD.UK",
    "PAG_CFD.UK",
    "INVP_CFD.UK",
    "SAFE_CFD.UK",
    "UTG_CFD.UK",
    "CBG_CFD.UK",
    "TPK_CFD.UK",
    "EMG_CFD.UK",
    "PZC_CFD.UK",
    "DOM_CFD.UK",
    "OCDO_CFD.UK",
    "HWDN_CFD.UK",
    "LRE_CFD.UK",
    "STJ_CFD.UK",
    "ABDN_CFD.UK",
    "UN0_CFD.DE",
    "LIO_CFD.UK",
    "BBY_CFD.UK",
    "CPG_CFD.UK",
    "MAB_CFD.UK",
    "KGF_CFD.UK",
    "PSN_CFD.UK",
    "IPO_CFD.UK",
    "MRNA_CFD.US",
    "GROW_CFD.UK",
    "GRG_CFD.UK",
    "IWG_CFD.UK",
    "SRP_CFD.UK",
    "BYIT_CFD.UK",
    "OSB_CFD.UK",
    "SYNT_CFD.UK",
    "FII_CFD.FR",
    "WKP_CFD.UK",
    "HIK_CFD.UK",
    "ATG_CFD.UK",
    "COTY_CFD.US",
    "UKW_CFD.UK",
    "HMSO_CFD.UK",
    "HYQ_CFD.DE",
    "NVAX_CFD.US",
    "SAVE_CFD.FR"
  ]
}
Outputs
{
  "actions": {
    "buy": [],
    "hold": [
      {
        "reason": "Hold existing mean-reversion exposure; no additional data provided to justify rotation, and priority this run is reducing leverage rather than reallocating.",
        "symbol": "ADBE_CFD.US"
      },
      {
        "reason": "Hold to avoid churn; position is already in place and no superior, risk-improving switch is evidenced with the provided inputs.",
        "symbol": "CSGP_CFD.US"
      },
      {
        "reason": "Hold; already in a drawdown and no new information suggests exiting improves expected mean-reversion outcome versus staying.",
        "symbol": "EZJ_CFD.UK"
      },
      {
        "reason": "Hold; avoid overtrading while focusing on leverage compliance via selling near-flat positions.",
        "symbol": "FICO_CFD.US"
      },
      {
        "reason": "Hold; no clear improvement case for rotation is available with the provided data.",
        "symbol": "IWG_CFD.UK"
      },
      {
        "reason": "Hold; candidate list flags PSN as oversold/mean-reversion setup, supporting maintaining the existing position rather than selling into weakness.",
        "symbol": "PSN_CFD.UK"
      },
      {
        "reason": "Hold; avoid churn—no provided signal indicates an exit is superior to maintaining the current mean-reversion position.",
        "symbol": "ULTA_CFD.US"
      },
      {
        "reason": "Hold; avoid churn and maintain existing mean-reversion exposure after leverage is reduced.",
        "symbol": "ZS_CFD.US"
      }
    ],
    "sell": [
      {
        "reason": "Risk-control deleveraging: current gross exposure appears to exceed the max_gross_leverage (3.0x) given current equity. This position is near flat (no unrealized loss), so reducing it lowers leverage with minimal disruption to existing mean-reversion holds.",
        "symbol": "HIK_CFD.UK"
      },
      {
        "reason": "Risk-control deleveraging: current gross exposure appears to exceed the max_gross_leverage (3.0x). This position is near flat (no unrealized loss), making it a low-regret trim to bring leverage back toward the constraint.",
        "symbol": "ITRK_CFD.UK"
      }
    ]
  },
  "portfolio_rationale": "Primary action this run is risk control: with 10 open positions of roughly fixed size, the current total gross exposure likely breaches the max_gross_leverage (3.0x) constraint after recent drawdowns reduced equity. To correct this with minimal strategy disruption and avoid realizing larger losses, sell two near-flat positions (HIK, ITRK) to bring exposure down. No new buys are placed because adding a fixed 3,000 position would likely push gross leverage back above the limit; avoiding overtrading is also a priority."
}
Prompts & responses
#1809openrouteropenai/gpt-5.2-pro2026-03-29T11:49:14.342777+00:00
System prompt
You are an Arena strategy executor. You must follow the strategy rules strictly and output ONLY valid JSON. You are NOT allowed to invent prices, fundamentals, earnings dates, or sentiment. If a field is null/empty, treat it as unknown. You are a constrained selector (no narrative).
User prompt
{"task": "stage1_universe_scan", "region": "EU", "strategy": {"key": "meanrev-v1", "name": "Two-Stage LLM Mean-Reversion (Arena v1)", "rules": {"max_positions": 10, "max_buys_per_run": 2, "avoid_overtrading": true, "max_sells_per_run": 2, "max_gross_leverage": 3.0, "fixed_position_size": 3000.0, "universe_symbols_eu": [], "universe_symbols_us": []}}, "selection_rules": {"horizon": "2-10 trading days", "target": "short-term mean reversion in liquid equities", "constraints": ["Select exactly 5 candidates", "Avoid earnings within 5 trading days (if known)", "Avoid highly binary/event-driven moves (if known)", "Avoid sector concentration: max 1 per sector unless clearly justified (sector may be unknown)"]}, "universe": [{"symbol": "CRST_CFD.UK", "name": "CREST NICHOLSON HOLDINGS", "sector": "", "last_price": 167.8, "change_1d_pct": 24.85119047619049, "distance_from_ma200_pct": 1.2720261375977815, "distance_from_ma50_pct": 17.82963155418549, "volatility_20d_pct": 158.46878099582966, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "MSLH_CFD.UK", "name": "MARSHALLS PLC", "sector": "", "last_price": 179.0, "change_1d_pct": 2.052451539338662, "distance_from_ma200_pct": -18.41965657865713, "distance_from_ma50_pct": 4.539832012082234, "volatility_20d_pct": 102.90810964969117, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "MCG_CFD.UK", "name": "MOBICO GROUP PLC", "sector": "", "last_price": 23.88, "change_1d_pct": -4.250200481154776, "distance_from_ma200_pct": -13.633157923289751, "distance_from_ma50_pct": 0.9358119246278163, "volatility_20d_pct": 236.12122528317374, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "BOY_CFD.UK", "name": "BODYCOTE PLC", "sector": "", "last_price": 775.4, "change_1d_pct": 24.163330664531625, "distance_from_ma200_pct": 28.652243313347768, "distance_from_ma50_pct": 18.63612217470385, "volatility_20d_pct": 103.46484337510964, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "LMP_CFD.UK", "name": "LONDONMETRIC PROPERTY PLC", "sector": "", "last_price": 214.0, "change_1d_pct": 11.57455683003128, "distance_from_ma200_pct": 12.507879494597773, "distance_from_ma50_pct": 10.77384329331672, "volatility_20d_pct": 54.89150861607771, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "SPX_CFD.UK", "name": "SPIRAX-SARCO ENGINEERING PLC", "sector": "", "last_price": 7608.71, "change_1d_pct": 10.91413994169097, "distance_from_ma200_pct": 15.905097055024719, "distance_from_ma50_pct": 8.459177525660632, "volatility_20d_pct": 84.71063298478786, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "PAGE_CFD.UK", "name": "PAGEGROUP PLC", "sector": "", "last_price": 152.7, "change_1d_pct": -36.79635761589404, "distance_from_ma200_pct": -40.61156091058385, "distance_from_ma50_pct": -31.72721647345812, "volatility_20d_pct": 193.22753953431183, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "ESNT_CFD.UK", "name": "ESSENTRA PLC", "sector": "", "last_price": 108.4, "change_1d_pct": 4.230769230769238, "distance_from_ma200_pct": 7.40452119530135, "distance_from_ma50_pct": 9.771484932749797, "volatility_20d_pct": 98.9832071461764, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "JDW_CFD.UK", "name": "WETHERSPOON (J.D.) PLC", "sector": "", "last_price": 748.5, "change_1d_pct": 9.750733137829904, "distance_from_ma200_pct": 6.242631058659898, "distance_from_ma50_pct": 5.290077328071208, "volatility_20d_pct": 98.2373545531062, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "SHC_CFD.UK", "name": "SHAFTESBURY CAPITAL PLC", "sector": "", "last_price": 140.4, "change_1d_pct": -2.9045643153526868, "distance_from_ma200_pct": 0.26963533347688085, "distance_from_ma50_pct": -0.771073778544229, "volatility_20d_pct": 63.75522821252001, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "PAG_CFD.UK", "name": "PARAGON BANKING GROUP PLC", "sector": "", "last_price": 852.5, "change_1d_pct": -3.399433427762044, "distance_from_ma200_pct": -1.3404962254783492, "distance_from_ma50_pct": 0.699141440891915, "volatility_20d_pct": 71.52779356208148, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "INVP_CFD.UK", "name": "INVESTEC PLC", "sector": "", "last_price": 623.5, "change_1d_pct": 8.529155787641418, "distance_from_ma200_pct": 17.34715626999408, "distance_from_ma50_pct": 9.569618971869698, "volatility_20d_pct": 76.97154585310399, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "SAFE_CFD.UK", "name": "SAFESTORE HOLDINGS PLC", "sector": "", "last_price": 708.0, "change_1d_pct": 0.14144271570013522, "distance_from_ma200_pct": 7.079918522466522, "distance_from_ma50_pct": -2.535991476029087, "volatility_20d_pct": 107.99712610776675, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "UTG_CFD.UK", "name": "UNITE GROUP PLC/THE", "sector": "", "last_price": 505.0, "change_1d_pct": -8.265213442325159, "distance_from_ma200_pct": -32.12786599325862, "distance_from_ma50_pct": -13.548388422126267, "volatility_20d_pct": 98.87339279796446, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "CBG_CFD.UK", "name": "CLOSE BROTHERS GROUP PLC", "sector": "", "last_price": 372.74, "change_1d_pct": -26.625984251968504, "distance_from_ma200_pct": -13.365429078084645, "distance_from_ma50_pct": -22.129222788055436, "volatility_20d_pct": 169.0552301316783, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "TPK_CFD.UK", "name": "TRAVIS PERKINS PLC", "sector": "", "last_price": 601.57, "change_1d_pct": -1.21029986533977, "distance_from_ma200_pct": 0.5267641208837714, "distance_from_ma50_pct": -4.983077425595306, "volatility_20d_pct": 108.19399806448348, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "EMG_CFD.UK", "name": "MAN GROUP PLC/JERSEY", "sector": "", "last_price": 269.6, "change_1d_pct": 2.353834472285521, "distance_from_ma200_pct": 42.186331073171914, "distance_from_ma50_pct": 15.516783354614262, "volatility_20d_pct": 86.92367167139048, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "PZC_CFD.UK", "name": "PZ CUSSONS PLC", "sector": "", "last_price": 77.7, "change_1d_pct": -13.858093126385807, "distance_from_ma200_pct": 2.9808107121248817, "distance_from_ma50_pct": 2.5905093876257723, "volatility_20d_pct": 92.73478468401771, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "DOM_CFD.UK", "name": "DOMINO'S PIZZA GROUP PLC", "sector": "", "last_price": 183.13, "change_1d_pct": -0.3102885138813294, "distance_from_ma200_pct": -15.070952368916624, "distance_from_ma50_pct": 1.0777282376278619, "volatility_20d_pct": 87.92203351330001, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "OCDO_CFD.UK", "name": "OCADO GROUP PLC", "sector": "", "last_price": 217.0, "change_1d_pct": -21.148255813953487, "distance_from_ma200_pct": -15.81606625159202, "distance_from_ma50_pct": -5.48311196636071, "volatility_20d_pct": 241.3119670937803, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "HWDN_CFD.UK", "name": "HOWDEN JOINERY GROUP PLC", "sector": "", "last_price": 843.0, "change_1d_pct": -2.686229466563539, "distance_from_ma200_pct": 2.9144756901175572, "distance_from_ma50_pct": 0.6796292983215046, "volatility_20d_pct": 44.16384759940265, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "LRE_CFD.UK", "name": "LANCASHIRE HOLDINGS LTD", "sector": "", "last_price": 611.0, "change_1d_pct": -7.424242424242422, "distance_from_ma200_pct": 0.4068944205071867, "distance_from_ma50_pct": -6.396619125545266, "volatility_20d_pct": 86.32350801127552, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "STJ_CFD.UK", "name": "ST JAMES'S PLACE PLC", "sector": "", "last_price": 1280.0, "change_1d_pct": -14.836992681304062, "distance_from_ma200_pct": 4.633703562254432, "distance_from_ma50_pct": -6.669417974449299, "volatility_20d_pct": 125.87476157380789, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "ABDN_CFD.UK", "name": "Aberdeen Group Plc", "sector": "", "last_price": 202.6, "change_1d_pct": -7.741347905282336, "distance_from_ma200_pct": 6.460345885775287, "distance_from_ma50_pct": -2.3285905331046353, "volatility_20d_pct": 82.55854119558269, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "UN0_CFD.DE", "name": "UNIPER SE", "sector": "", "last_price": 40.447, "change_1d_pct": 3.1811224489795897, "distance_from_ma200_pct": 15.001665444298329, "distance_from_ma50_pct": 11.761744419373343, "volatility_20d_pct": 121.66431841152988, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "LIO_CFD.UK", "name": "LIONTRUST ASSET MANAGEMENT", "sector": "", "last_price": 270.0, "change_1d_pct": 7.784431137724557, "distance_from_ma200_pct": -17.148878096081223, "distance_from_ma50_pct": 4.440258238208905, "volatility_20d_pct": 138.52252179896075, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "BBY_CFD.UK", "name": "BALFOUR BEATTY PLC", "sector": "", "last_price": 759.18, "change_1d_pct": 5.222453222453205, "distance_from_ma200_pct": 33.313724414201815, "distance_from_ma50_pct": 8.832962232591, "volatility_20d_pct": 54.25956465831767, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "CPG_CFD.UK", "name": "COMPASS GROUP PLC", "sector": "", "last_price": 2141.0, "change_1d_pct": -3.904847396768407, "distance_from_ma200_pct": -12.763815098729692, "distance_from_ma50_pct": -3.1255472094411263, "volatility_20d_pct": 96.30888746538716, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "MAB_CFD.UK", "name": "MITCHELLS & BUTLERS PLC", "sector": "", "last_price": 292.81, "change_1d_pct": 14.37890625, "distance_from_ma200_pct": 11.595067041457764, "distance_from_ma50_pct": 10.935906392690597, "volatility_20d_pct": 118.87119977937589, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "KGF_CFD.UK", "name": "KINGFISHER PLC", "sector": "", "last_price": 298.6, "change_1d_pct": -16.592178770949715, "distance_from_ma200_pct": 1.7661505198389493, "distance_from_ma50_pct": -8.10124743477527, "volatility_20d_pct": 106.76236046208503, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "PSN_CFD.UK", "name": "PERSIMMON PLC", "sector": "", "last_price": 1125.0, "change_1d_pct": -18.181818181818176, "distance_from_ma200_pct": -10.441765693528215, "distance_from_ma50_pct": -17.60321899687448, "volatility_20d_pct": 125.39714948121237, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "IPO_CFD.UK", "name": "IP GROUP PLC", "sector": "", "last_price": 57.6, "change_1d_pct": -1.873935264054516, "distance_from_ma200_pct": 10.233643652522883, "distance_from_ma50_pct": -2.027486732888828, "volatility_20d_pct": 89.82123635439407, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "MRNA_CFD.US", "name": "MODERNA INC", "sector": "", "last_price": 51.1, "change_1d_pct": -2.4995229917954553, "distance_from_ma200_pct": 54.45369185128317, "distance_from_ma50_pct": 5.162641948986857, "volatility_20d_pct": 139.59044391419934, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "GROW_CFD.UK", "name": "MOLTEN VENTURES PLC", "sector": "", "last_price": 465.0, "change_1d_pct": 1.572739187418093, "distance_from_ma200_pct": 22.569628774815076, "distance_from_ma50_pct": -4.275686024250158, "volatility_20d_pct": 115.72658030340939, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "GRG_CFD.UK", "name": "GREGGS PLC", "sector": "", "last_price": 1529.0, "change_1d_pct": -2.9206349206349236, "distance_from_ma200_pct": -8.939548634961259, "distance_from_ma50_pct": -6.2632574039152455, "volatility_20d_pct": 114.30891013276798, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "IWG_CFD.UK", "name": "IWG PLC", "sector": "", "last_price": 177.0, "change_1d_pct": -26.786896095301127, "distance_from_ma200_pct": -17.645939421376646, "distance_from_ma50_pct": -22.14236071400294, "volatility_20d_pct": 154.02502086657427, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "SRP_CFD.UK", "name": "SERCO GROUP PLC", "sector": "", "last_price": 300.0, "change_1d_pct": -0.3984063745019917, "distance_from_ma200_pct": 34.11120814305375, "distance_from_ma50_pct": 6.89280433272168, "volatility_20d_pct": 77.89780733903845, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "BYIT_CFD.UK", "name": "BYTES TECHNOLOGY GROUP PLC", "sector": "", "last_price": 300.4, "change_1d_pct": -12.674418604651173, "distance_from_ma200_pct": -28.03446775272175, "distance_from_ma50_pct": -14.34777426817815, "volatility_20d_pct": 87.82535981934274, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "OSB_CFD.UK", "name": "OSB GROUP PLC", "sector": "", "last_price": 528.5, "change_1d_pct": -16.244057052297943, "distance_from_ma200_pct": -1.8378243844316744, "distance_from_ma50_pct": -10.974869814433564, "volatility_20d_pct": 90.32554714918702, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "SYNT_CFD.UK", "name": "SYNTHOMER PLC", "sector": "", "last_price": 35.8, "change_1d_pct": 79.17917917917916, "distance_from_ma200_pct": -51.1200405785585, "distance_from_ma50_pct": -25.007017499759108, "volatility_20d_pct": 569.2067525949132, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "FII_CFD.FR", "name": "Lisi Group", "sector": "", "last_price": 51.8, "change_1d_pct": -0.38461538461539435, "distance_from_ma200_pct": 7.480575427761815, "distance_from_ma50_pct": -5.6333948477291, "volatility_20d_pct": 93.12522215333232, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "WKP_CFD.UK", "name": "WORKSPACE GROUP PLC", "sector": "", "last_price": 423.0, "change_1d_pct": 3.6764705882353033, "distance_from_ma200_pct": 1.8640028868691871, "distance_from_ma50_pct": 5.808194506978848, "volatility_20d_pct": 70.2233148398582, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "HIK_CFD.UK", "name": "HIKMA PHARMACEUTICALS PLC", "sector": "", "last_price": 1267.0, "change_1d_pct": -19.55555555555556, "distance_from_ma200_pct": -28.881851790845626, "distance_from_ma50_pct": -15.711709832205766, "volatility_20d_pct": 155.5956600941246, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "ATG_CFD.UK", "name": "AUCTION TECHNOLOGY GROUP", "sector": "", "last_price": 326.5, "change_1d_pct": 12.006861063464846, "distance_from_ma200_pct": -24.987260470422935, "distance_from_ma50_pct": 5.84429056770146, "volatility_20d_pct": 172.45012969704524, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "COTY_CFD.US", "name": "Coty Inc", "sector": "", "last_price": 2.05, "change_1d_pct": -3.7558685446009377, "distance_from_ma200_pct": -45.233292814875185, "distance_from_ma50_pct": -22.100623195014435, "volatility_20d_pct": 76.36828551252826, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "UKW_CFD.UK", "name": "GREENCOAT UK WIND PLC", "sector": "", "last_price": 100.7, "change_1d_pct": 1.6658253407370038, "distance_from_ma200_pct": -9.705655680854775, "distance_from_ma50_pct": -2.946868470357833, "volatility_20d_pct": 63.21786303082545, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "HMSO_CFD.UK", "name": "HAMMERSON PLC", "sector": "", "last_price": 355.4, "change_1d_pct": 14.129736673089276, "distance_from_ma200_pct": 22.516025502913806, "distance_from_ma50_pct": 10.006914897239172, "volatility_20d_pct": 87.54938293511039, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "HYQ_CFD.DE", "name": "HYPOPORT SE", "sector": "", "last_price": 71.617, "change_1d_pct": -8.53512132822477, "distance_from_ma200_pct": -47.20693489030992, "distance_from_ma50_pct": -19.13131515243628, "volatility_20d_pct": 123.23681689318084, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "NVAX_CFD.US", "name": "NOVAVAX INC", "sector": "", "last_price": 8.61, "change_1d_pct": -10.68464730290457, "distance_from_ma200_pct": 7.390753918016313, "distance_from_ma50_pct": -8.001025772534954, "volatility_20d_pct": 178.31142153329148, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}, {"symbol": "SAVE_CFD.FR", "name": "Savencia SA", "sector": "", "last_price": 59.6, "change_1d_pct": 2.082762400657723, "distance_from_ma200_pct": -2.7499570859709888, "distance_from_ma50_pct": -0.39214742496987975, "volatility_20d_pct": 60.38214199106066, "market_cap_usd": null, "avg_daily_volume_usd": null, "days_to_next_earnings": null, "earnings_confirmed": null, "news_sentiment_score": null, "news_headlines_last_3": [], "data_quality_note": "snapshot_ok_prices_technicals_only"}], "output_schema": {"selected_stocks": [{"symbol": "string", "mean_reversion_score": "integer 0-100", "selection_reason": "short, concrete, indicator-based"}], "rejected_common_reasons": ["string"]}}
Output JSON
{
  "selected_stocks": [
    {
      "symbol": "BYIT_CFD.UK",
      "selection_reason": "Large down day (-12.7%) with price stretched below MA200 (-28.0%) and MA50 (-14.3%); volatility not extreme vs other selloffs (20d vol ~87.8%)",
      "mean_reversion_score": 82
    },
    {
      "symbol": "UTG_CFD.UK",
      "selection_reason": "Selloff (-8.3%) while deeply below MA200 (-32.1%) and MA50 (-13.5%), consistent with short-term oversold mean-reversion setup (20d vol ~98.9%)",
      "mean_reversion_score": 78
    },
    {
      "symbol": "PSN_CFD.UK",
      "selection_reason": "Sharp drop (-18.2%) with downside extension below MA50 (-17.6%) and below MA200 (-10.4%); elevated but not top-tier volatility (20d vol ~125.4%)",
      "mean_reversion_score": 76
    },
    {
      "symbol": "OSB_CFD.UK",
      "selection_reason": "Big one-day decline (-16.2%) pushing below MA50 (-11.0%) while near MA200 (-1.8%); relatively lower 20d volatility (~90.3%) for the magnitude of the move",
      "mean_reversion_score": 74
    },
    {
      "symbol": "KGF_CFD.UK",
      "selection_reason": "Heavy down day (-16.6%) with price below MA50 (-8.1%) and near MA200 (+1.8%); volatility moderate-high but not extreme (20d vol ~106.8%)",
      "mean_reversion_score": 70
    }
  ],
  "rejected_common_reasons": [
    "Extreme 1-day spikes/drops suggesting event-driven or binary risk (e.g., >~20% move with very high 20d volatility)",
    "Too extended above moving averages after large up day (more likely momentum/news continuation than clean mean reversion)",
    "Very high 20d volatility outliers (risk of continued disorderly price action over 2–10 days)",
    "Region mismatch (non-EU symbols present in the provided universe)"
  ]
}
#1810openrouteropenai/gpt-5.2-pro2026-03-29T11:50:58.906075+00:00
System prompt
You are an Arena portfolio manager. You must follow the strategy rules strictly and output ONLY valid JSON. You are NOT allowed to invent prices/fundamentals/news/earnings. If a field is null/empty, treat it as unknown. Avoid overtrading: if changes are marginal, prefer HOLD. Do not churn.
User prompt
{"task": "stage2_portfolio_management", "region": "EU", "strategy": {"key": "meanrev-v1", "name": "Two-Stage LLM Mean-Reversion (Arena v1)", "rules": {"max_positions": 10, "max_buys_per_run": 2, "avoid_overtrading": true, "max_sells_per_run": 2, "max_gross_leverage": 3.0, "fixed_position_size": 3000.0, "universe_symbols_eu": [], "universe_symbols_us": []}}, "portfolio_constraints": {"initial_equity": 10000.0, "max_positions": 10, "fixed_position_size": 3000.0, "max_gross_leverage": 3.0, "overtrading_rules": ["Max 2 SELL actions per run unless risk event forces more", "Max 2 BUY actions per run", "If no clear improvement vs current holdings, output HOLD for everything"]}, "current_portfolio": [{"symbol": "ADBE_CFD.US", "qty": 12.025494047380446, "avg_price": 249.47, "last_price": 235.0, "unrealized_pnl": -174.00889886559506, "opened_at": "2026-03-14T18:06:47.909233+00:00"}, {"symbol": "AMH_CFD.US", "qty": 0.0, "avg_price": 29.674999999999997, "last_price": 28.435000000000002, "unrealized_pnl": 0.0, "opened_at": "2026-02-20T17:33:34.647633+00:00"}, {"symbol": "ARCAD_CFD.NL", "qty": 0.0, "avg_price": 28.6, "last_price": 30.0, "unrealized_pnl": 146.8531468531467, "opened_at": "2026-02-23T10:32:09.961595+00:00"}, {"symbol": "BYIT_CFD.UK", "qty": 0.0, "avg_price": 292.6, "last_price": 292.6, "unrealized_pnl": 0.0, "opened_at": "2026-02-16T09:30:55.514112+00:00"}, {"symbol": "CABO_CFD.US", "qty": 0.0, "avg_price": 94.325, "last_price": 108.6, "unrealized_pnl": 0.0, "opened_at": "2026-02-27T18:23:55.960577+00:00"}, {"symbol": "CBG_CFD.UK", "qty": 0.0, "avg_price": 342.92, "last_price": 342.92, "unrealized_pnl": 0.0, "opened_at": "2026-03-20T10:26:40.341409+00:00"}, {"symbol": "CRWD_CFD.US", "qty": 0.0, "avg_price": 350.45000000000005, "last_price": 382.96500000000003, "unrealized_pnl": 0.0, "opened_at": "2026-02-23T18:14:12.978497+00:00"}, {"symbol": "CSGP_CFD.US", "qty": 63.51222610352493, "avg_price": 47.235, "last_price": 39.815, "unrealized_pnl": -471.26071768815507, "opened_at": "2026-03-03T18:03:34.247734+00:00"}, {"symbol": "DSY_CFD.FR", "qty": 0.0, "avg_price": 17.881, "last_price": 17.45, "unrealized_pnl": 0.0, "opened_at": "2026-02-16T09:30:55.514112+00:00"}, {"symbol": "ETSY_CFD.US", "qty": 0.0, "avg_price": 44.13, "last_price": 50.769999999999996, "unrealized_pnl": 0.0, "opened_at": "2026-02-19T00:47:27.070066+00:00"}, {"symbol": "EZJ_CFD.UK", "qty": 6.857142857142857, "avg_price": 437.5, "last_price": 351.6, "unrealized_pnl": -589.0285714285712, "opened_at": "2026-03-03T10:20:03.276878+00:00"}, {"symbol": "FBIN_CFD.US", "qty": 0.0, "avg_price": 50.974999999999994, "last_price": 54.185, "unrealized_pnl": 0.0, "opened_at": "2026-02-16T17:30:52.485845+00:00"}, {"symbol": "FICO_CFD.US", "qty": 2.6609662855571625, "avg_price": 1127.4099999999999, "last_price": 1014.37, "unrealized_pnl": -300.7956289193813, "opened_at": "2026-03-14T18:06:47.909233+00:00"}, {"symbol": "FLO_CFD.US", "qty": 0.0, "avg_price": 9.875, "last_price": 9.885000000000002, "unrealized_pnl": 0.0, "opened_at": "2026-02-19T00:47:27.070066+00:00"}, {"symbol": "FUTR_CFD.UK", "qty": 0.0, "avg_price": 414.2, "last_price": 414.2, "unrealized_pnl": 0.0, "opened_at": "2026-02-18T09:36:37.284518+00:00"}, {"symbol": "HIK_CFD.UK", "qty": 2.4271844660194173, "avg_price": 1236.0, "last_price": 1236.0, "unrealized_pnl": 0.0, "opened_at": "2026-03-28T10:05:22.022266+00:00"}, {"symbol": "ITRK_CFD.UK", "qty": 0.8287292817679558, "avg_price": 3620.0, "last_price": 3620.0, "unrealized_pnl": 0.0, "opened_at": "2026-03-28T10:05:22.022266+00:00"}, {"symbol": "IWG_CFD.UK", "qty": 16.216216216216218, "avg_price": 185.0, "last_price": 172.2, "unrealized_pnl": -207.56756756756778, "opened_at": "2026-03-17T10:04:29.123574+00:00"}, {"symbol": "MLCO_CFD.US", "qty": 0.0, "avg_price": 5.51, "last_price": 6.06, "unrealized_pnl": 0.0, "opened_at": "2026-02-16T17:30:52.485845+00:00"}, {"symbol": "OCDO_CFD.UK", "qty": 0.0, "avg_price": 204.3, "last_price": 204.3, "unrealized_pnl": 0.0, "opened_at": "2026-03-12T18:01:52.554929+00:00"}, {"symbol": "PAGE_CFD.UK", "qty": 0.0, "avg_price": 132.9, "last_price": 132.9, "unrealized_pnl": 0.0, "opened_at": "2026-03-05T10:27:11.178069+00:00"}, {"symbol": "PAYC_CFD.US", "qty": 0.0, "avg_price": 121.22, "last_price": 134.24, "unrealized_pnl": 322.2240554363969, "opened_at": "2026-02-19T17:33:27.020111+00:00"}, {"symbol": "PSN_CFD.UK", "qty": 2.4691358024691357, "avg_price": 1215.0, "last_price": 1089.0, "unrealized_pnl": -311.1111111111111, "opened_at": "2026-03-12T18:01:52.554929+00:00"}, {"symbol": "RMV_CFD.UK", "qty": 0.0, "avg_price": 424.3, "last_price": 424.3, "unrealized_pnl": 0.0, "opened_at": "2026-02-18T09:36:37.284518+00:00"}, {"symbol": "TMV_CFD.DE", "qty": 0.0, "avg_price": 4.781, "last_price": 4.467, "unrealized_pnl": 0.0, "opened_at": "2026-02-19T09:33:49.074031+00:00"}, {"symbol": "TRN_CFD.UK", "qty": 0.0, "avg_price": 184.5, "last_price": 204.2, "unrealized_pnl": 0.0, "opened_at": "2026-03-05T10:27:11.178069+00:00"}, {"symbol": "UKW_CFD.UK", "qty": 0.0, "avg_price": 92.35, "last_price": 92.35, "unrealized_pnl": 0.0, "opened_at": "2026-02-25T17:57:28.313088+00:00"}, {"symbol": "ULTA_CFD.US", "qty": 5.605381165919282, "avg_price": 535.2, "last_price": 510.23, "unrealized_pnl": -139.96636771300464, "opened_at": "2026-03-15T18:15:23.812047+00:00"}, {"symbol": "WPP_CFD.UK", "qty": 0.0, "avg_price": 232.09999999999997, "last_price": 232.0, "unrealized_pnl": 0.0, "opened_at": "2026-02-28T10:51:05.818250+00:00"}, {"symbol": "ZS_CFD.US", "qty": 18.778167250876315, "avg_price": 159.76, "last_price": 133.3, "unrealized_pnl": -496.8703054581869, "opened_at": "2026-02-21T17:32:49.140800+00:00"}], "candidates": [{"symbol": "BYIT_CFD.UK", "mean_reversion_score": 82, "selection_reason": "Large down day (-12.7%) with price stretched below MA200 (-28.0%) and MA50 (-14.3%); volatility not extreme vs other selloffs (20d vol ~87.8%)"}, {"symbol": "UTG_CFD.UK", "mean_reversion_score": 78, "selection_reason": "Selloff (-8.3%) while deeply below MA200 (-32.1%) and MA50 (-13.5%), consistent with short-term oversold mean-reversion setup (20d vol ~98.9%)"}, {"symbol": "PSN_CFD.UK", "mean_reversion_score": 76, "selection_reason": "Sharp drop (-18.2%) with downside extension below MA50 (-17.6%) and below MA200 (-10.4%); elevated but not top-tier volatility (20d vol ~125.4%)"}, {"symbol": "OSB_CFD.UK", "mean_reversion_score": 74, "selection_reason": "Big one-day decline (-16.2%) pushing below MA50 (-11.0%) while near MA200 (-1.8%); relatively lower 20d volatility (~90.3%) for the magnitude of the move"}, {"symbol": "KGF_CFD.UK", "mean_reversion_score": 70, "selection_reason": "Heavy down day (-16.6%) with price below MA50 (-8.1%) and near MA200 (+1.8%); volatility moderate-high but not extreme (20d vol ~106.8%)"}], "output_schema": {"actions": {"sell": [{"symbol": "string", "reason": "string"}], "hold": [{"symbol": "string", "reason": "string"}], "buy": [{"symbol": "string", "position_size": "number (currency amount)", "reason": "string"}]}, "portfolio_rationale": "string"}}
Output JSON
{
  "actions": {
    "buy": [],
    "hold": [
      {
        "reason": "Hold existing mean-reversion exposure; no additional data provided to justify rotation, and priority this run is reducing leverage rather than reallocating.",
        "symbol": "ADBE_CFD.US"
      },
      {
        "reason": "Hold to avoid churn; position is already in place and no superior, risk-improving switch is evidenced with the provided inputs.",
        "symbol": "CSGP_CFD.US"
      },
      {
        "reason": "Hold; already in a drawdown and no new information suggests exiting improves expected mean-reversion outcome versus staying.",
        "symbol": "EZJ_CFD.UK"
      },
      {
        "reason": "Hold; avoid overtrading while focusing on leverage compliance via selling near-flat positions.",
        "symbol": "FICO_CFD.US"
      },
      {
        "reason": "Hold; no clear improvement case for rotation is available with the provided data.",
        "symbol": "IWG_CFD.UK"
      },
      {
        "reason": "Hold; candidate list flags PSN as oversold/mean-reversion setup, supporting maintaining the existing position rather than selling into weakness.",
        "symbol": "PSN_CFD.UK"
      },
      {
        "reason": "Hold; avoid churn—no provided signal indicates an exit is superior to maintaining the current mean-reversion position.",
        "symbol": "ULTA_CFD.US"
      },
      {
        "reason": "Hold; avoid churn and maintain existing mean-reversion exposure after leverage is reduced.",
        "symbol": "ZS_CFD.US"
      }
    ],
    "sell": [
      {
        "reason": "Risk-control deleveraging: current gross exposure appears to exceed the max_gross_leverage (3.0x) given current equity. This position is near flat (no unrealized loss), so reducing it lowers leverage with minimal disruption to existing mean-reversion holds.",
        "symbol": "HIK_CFD.UK"
      },
      {
        "reason": "Risk-control deleveraging: current gross exposure appears to exceed the max_gross_leverage (3.0x). This position is near flat (no unrealized loss), making it a low-regret trim to bring leverage back toward the constraint.",
        "symbol": "ITRK_CFD.UK"
      }
    ]
  },
  "portfolio_rationale": "Primary action this run is risk control: with 10 open positions of roughly fixed size, the current total gross exposure likely breaches the max_gross_leverage (3.0x) constraint after recent drawdowns reduced equity. To correct this with minimal strategy disruption and avoid realizing larger losses, sell two near-flat positions (HIK, ITRK) to bring exposure down. No new buys are placed because adding a fixed 3,000 position would likely push gross leverage back above the limit; avoiding overtrading is also a priority."
}
Selection logs
#888stage12026-03-29T11:50:58.903240+00:00
{
  "selected_stocks": [
    {
      "symbol": "BYIT_CFD.UK",
      "selection_reason": "Large down day (-12.7%) with price stretched below MA200 (-28.0%) and MA50 (-14.3%); volatility not extreme vs other selloffs (20d vol ~87.8%)",
      "mean_reversion_score": 82
    },
    {
      "symbol": "UTG_CFD.UK",
      "selection_reason": "Selloff (-8.3%) while deeply below MA200 (-32.1%) and MA50 (-13.5%), consistent with short-term oversold mean-reversion setup (20d vol ~98.9%)",
      "mean_reversion_score": 78
    },
    {
      "symbol": "PSN_CFD.UK",
      "selection_reason": "Sharp drop (-18.2%) with downside extension below MA50 (-17.6%) and below MA200 (-10.4%); elevated but not top-tier volatility (20d vol ~125.4%)",
      "mean_reversion_score": 76
    },
    {
      "symbol": "OSB_CFD.UK",
      "selection_reason": "Big one-day decline (-16.2%) pushing below MA50 (-11.0%) while near MA200 (-1.8%); relatively lower 20d volatility (~90.3%) for the magnitude of the move",
      "mean_reversion_score": 74
    },
    {
      "symbol": "KGF_CFD.UK",
      "selection_reason": "Heavy down day (-16.6%) with price below MA50 (-8.1%) and near MA200 (+1.8%); volatility moderate-high but not extreme (20d vol ~106.8%)",
      "mean_reversion_score": 70
    }
  ],
  "rejected_common_reasons": [
    "Extreme 1-day spikes/drops suggesting event-driven or binary risk (e.g., >~20% move with very high 20d volatility)",
    "Too extended above moving averages after large up day (more likely momentum/news continuation than clean mean reversion)",
    "Very high 20d volatility outliers (risk of continued disorderly price action over 2–10 days)",
    "Region mismatch (non-EU symbols present in the provided universe)"
  ]
}