Arena run #428

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).

{"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": "PAGE_CFD.UK", "name": "PAGEGROUP PLC", "sector": "", "last_price": 205.8, "change_1d_pct": -13.091216216216218, "distance_from_ma200_pct": -20.507377691735872, "distance_from_ma50_pct": -9.456474873951793, "volatility_20d_pct": 113.15149478988747, "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": 567.5, "change_1d_pct": 3.4639927073837784, "distance_from_ma200_pct": -23.929923575376698, "distance_from_ma50_pct": -3.6875042216270137, "volatility_20d_pct": 73.84223442053181, "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": "TRN_CFD.UK", "name": "TRAINLINE PLC", "sector": "", "last_price": 206.0, "change_1d_pct": -12.93322062552832, "distance_from_ma200_pct": -22.557701091522887, "distance_from_ma50_pct": -12.560104316644482, "volatility_20d_pct": 131.09279103846345, "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": "CCL_CFD.UK", "name": "CARNIVAL PLC", "sector": "", "last_price": 2073.0, "change_1d_pct": -4.027777777777775, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -8.659276887563516, "volatility_20d_pct": 4662.039849115115, "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": "BIG_CFD.FR", "name": "Bigben Interactive", "sector": "", "last_price": 0.316, "change_1d_pct": -31.601731601731608, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -59.40807727879971, "volatility_20d_pct": 15531.09352934197, "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": 306.0, "change_1d_pct": -1.9230769230769273, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -1.1564054525486145, "volatility_20d_pct": 2871.87284706475, "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": "AED_CFD.BE", "name": "Aedifica SICAFI SA", "sector": "", "last_price": 77.4, "change_1d_pct": 1.8421052631579116, "distance_from_ma200_pct": null, "distance_from_ma50_pct": 9.682996301387359, "volatility_20d_pct": 1577.0991342706395, "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": "CCC_CFD.UK", "name": "COMPUTACENTER PLC", "sector": "", "last_price": 3020.0, "change_1d_pct": 1.206434316353877, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -2.0345668760055946, "volatility_20d_pct": 3440.491186199078, "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": 306.6, "change_1d_pct": 2.679169457468178, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -6.902457094967984, "volatility_20d_pct": 4004.1297994002825, "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": "AAP_CFD.US", "name": "Advance Auto Parts Inc", "sector": "", "last_price": 50.44, "change_1d_pct": -6.210487169951662, "distance_from_ma200_pct": null, "distance_from_ma50_pct": 7.0908715263371835, "volatility_20d_pct": 5354.924585691339, "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": "BNP_CFD.FR", "name": "BNP Paribas", "sector": "", "last_price": 89.4, "change_1d_pct": -2.3910907304290796, "distance_from_ma200_pct": null, "distance_from_ma50_pct": 5.624317695263192, "volatility_20d_pct": 2072.230857359129, "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": "CAR_CFD.US", "name": "Avis Budget Group Inc", "sector": "", "last_price": 96.98, "change_1d_pct": 1.3269250861978943, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -18.209963743517644, "volatility_20d_pct": 9826.611389258967, "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"]}}

{
  "selected_stocks": [
    {
      "symbol": "PAGE_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -9.46%",
      "mean_reversion_score": 85
    },
    {
      "symbol": "TRN_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -12.56%",
      "mean_reversion_score": 92
    },
    {
      "symbol": "UTG_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -3.69%",
      "mean_reversion_score": 78
    },
    {
      "symbol": "CCC_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -2.03%",
      "mean_reversion_score": 72
    },
    {
      "symbol": "BYIT_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -6.90%",
      "mean_reversion_score": 81
    }
  ],
  "rejected_common_reasons": [
    "distance_from_ma50_pct > -3% or missing",
    "missing ma200 data",
    "excessive volatility"
  ]
}

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.

{"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": "ADP_CFD.FR", "qty": 0.0, "avg_price": 117.5, "last_price": 115.1, "unrealized_pnl": -61.276595744680996, "opened_at": "2026-02-25T10:57:06.928276+00:00"}, {"symbol": "AKAM_CFD.US", "qty": 30.783438510081577, "avg_price": 97.455, "last_price": 102.905, "unrealized_pnl": 167.7697398799447, "opened_at": "2026-02-23T18:14:12.978497+00:00"}, {"symbol": "BIG_CFD.FR", "qty": 0.0, "avg_price": 0.453, "last_price": 0.296, "unrealized_pnl": 0.0, "opened_at": "2026-02-21T17:32:49.140800+00:00"}, {"symbol": "BRBY_CFD.UK", "qty": 0.0, "avg_price": 1119.08, "last_price": 1067.5, "unrealized_pnl": 0.0, "opened_at": "2026-03-02T10:31:26.559356+00:00"}, {"symbol": "BRNL_CFD.NL", "qty": 0.0, "avg_price": 7.05, "last_price": 6.68, "unrealized_pnl": 0.0, "opened_at": "2026-02-23T10:32:09.961595+00:00"}, {"symbol": "BTRW_CFD.UK", "qty": 0.0, "avg_price": 363.1, "last_price": 340.3, "unrealized_pnl": 0.0, "opened_at": "2026-03-02T18:21:09.503139+00:00"}, {"symbol": "BT_CFD.UK", "qty": 14.218009478672986, "avg_price": 211.0, "last_price": 207.8, "unrealized_pnl": -45.49763033175339, "opened_at": "2026-03-03T10:20:03.276878+00:00"}, {"symbol": "BYIT_CFD.UK", "qty": 10.252904989747094, "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": 31.71247357293869, "avg_price": 94.6, "last_price": 114.965, "unrealized_pnl": 645.8245243128968, "opened_at": "2026-02-27T18:23:55.960577+00:00"}, {"symbol": "CBG_CFD.UK", "qty": 6.547359231776517, "avg_price": 458.2, "last_price": 458.2, "unrealized_pnl": 0.0, "opened_at": "2026-03-04T10:26:53.527562+00:00"}, {"symbol": "DSY_CFD.FR", "qty": 0.0, "avg_price": 17.881, "last_price": 16.752, "unrealized_pnl": 0.0, "opened_at": "2026-02-16T09:30:55.514112+00:00"}, {"symbol": "ERA_CFD.FR", "qty": 0.0, "avg_price": 47.4, "last_price": 46.329, "unrealized_pnl": 0.0, "opened_at": "2026-02-19T17:33:27.020111+00:00"}, {"symbol": "ESTC_CFD.US", "qty": 0.0, "avg_price": 58.085, "last_price": 55.355000000000004, "unrealized_pnl": 0.0, "opened_at": "2026-02-20T17:33:34.647633+00:00"}, {"symbol": "EXE_CFD.FR", "qty": 80.42248612712115, "avg_price": 37.303, "last_price": 35.954, "unrealized_pnl": -108.48993378548616, "opened_at": "2026-02-24T18:14:37.115518+00:00"}, {"symbol": "EZJ_CFD.UK", "qty": 6.855575868372943, "avg_price": 437.6, "last_price": 415.6, "unrealized_pnl": -150.82266910420475, "opened_at": "2026-02-21T09:33:26.900894+00:00"}, {"symbol": "FUTR_CFD.UK", "qty": 22.466300549176236, "avg_price": 400.6, "last_price": 414.2, "unrealized_pnl": 305.54168746879606, "opened_at": "2026-02-18T09:36:37.284518+00:00"}, {"symbol": "HAIN_CFD.US", "qty": 0.0, "avg_price": 0.8, "last_price": 0.8, "unrealized_pnl": 0.0, "opened_at": "2026-02-27T18:23:55.960577+00:00"}, {"symbol": "HIK_CFD.UK", "qty": 0.0, "avg_price": 1409.0, "last_price": 1342.0, "unrealized_pnl": -142.65436479772887, "opened_at": "2026-02-26T10:33:24.101894+00:00"}, {"symbol": "HMSO_CFD.UK", "qty": 8.600917431192661, "avg_price": 348.8, "last_price": 348.8, "unrealized_pnl": 0.0, "opened_at": "2026-02-23T18:14:12.978497+00:00"}, {"symbol": "IPO_CFD.UK", "qty": 0.0, "avg_price": 57.7, "last_price": 57.6, "unrealized_pnl": 0.0, "opened_at": "2026-02-20T09:33:44.817899+00:00"}, {"symbol": "KBCA_CFD.BE", "qty": 0.0, "avg_price": 75.3, "last_price": 75.1, "unrealized_pnl": 0.0, "opened_at": "2026-02-25T10:57:06.928276+00:00"}, {"symbol": "LIO_CFD.UK", "qty": 0.0, "avg_price": 250.0, "last_price": 270.0, "unrealized_pnl": 240.0, "opened_at": "2026-02-21T09:33:26.900894+00:00"}, {"symbol": "OCDO_CFD.UK", "qty": 13.824884792626728, "avg_price": 217.0, "last_price": 217.0, "unrealized_pnl": 0.0, "opened_at": "2026-03-01T10:30:13.622938+00:00"}, {"symbol": "PAGE_CFD.UK", "qty": 14.577259475218659, "avg_price": 205.8, "last_price": 151.91, "unrealized_pnl": -785.5685131195337, "opened_at": "2026-02-22T09:32:59.506254+00:00"}, {"symbol": "REC_CFD.BE", "qty": 0.0, "avg_price": 11.08, "last_price": 10.68, "unrealized_pnl": 0.0, "opened_at": "2026-03-02T18:21:09.503139+00:00"}, {"symbol": "RHIM_CFD.UK", "qty": 1.073345259391771, "avg_price": 2795.0, "last_price": 2795.0, "unrealized_pnl": 0.0, "opened_at": "2026-03-03T10:20:03.276878+00:00"}, {"symbol": "RMV_CFD.UK", "qty": 0.0, "avg_price": 424.3, "last_price": 416.0, "unrealized_pnl": 0.0, "opened_at": "2026-02-19T00:47:27.070066+00:00"}, {"symbol": "SGE_CFD.UK", "qty": 0.0, "avg_price": 795.4, "last_price": 813.4, "unrealized_pnl": 0.0, "opened_at": "2026-02-16T17:30:52.485845+00:00"}, {"symbol": "SYNT_CFD.UK", "qty": 326.0869565217392, "avg_price": 18.4, "last_price": 18.4, "unrealized_pnl": 0.0, "opened_at": "2026-03-03T18:03:34.247734+00:00"}, {"symbol": "UKW_CFD.UK", "qty": 64.97022198159178, "avg_price": 92.35, "last_price": 94.79, "unrealized_pnl": 158.52734163508472, "opened_at": "2026-02-20T09:33:44.817899+00:00"}, {"symbol": "UMG_CFD.NL", "qty": 0.0, "avg_price": 19.085, "last_price": 18.665, "unrealized_pnl": 0.0, "opened_at": "2026-02-19T09:33:49.074031+00:00"}, {"symbol": "UTG_CFD.UK", "qty": 5.9405940594059405, "avg_price": 505.0, "last_price": 505.0, "unrealized_pnl": 0.0, "opened_at": "2026-03-04T10:26:53.527562+00:00"}, {"symbol": "WIZZ_CFD.UK", "qty": 0.0, "avg_price": 1299.0, "last_price": 1149.0, "unrealized_pnl": 0.0, "opened_at": "2026-02-25T17:57:28.313088+00:00"}, {"symbol": "WPP_CFD.UK", "qty": 0.0, "avg_price": 263.4, "last_price": 240.8, "unrealized_pnl": 0.0, "opened_at": "2026-02-16T17:30:52.485845+00:00"}, {"symbol": "ZS_CFD.US", "qty": 0.0, "avg_price": 159.76, "last_price": 144.45, "unrealized_pnl": 0.0, "opened_at": "2026-02-21T17:32:49.140800+00:00"}], "candidates": [{"symbol": "PAGE_CFD.UK", "mean_reversion_score": 85, "selection_reason": "distance_from_ma50_pct -9.46%"}, {"symbol": "TRN_CFD.UK", "mean_reversion_score": 92, "selection_reason": "distance_from_ma50_pct -12.56%"}, {"symbol": "UTG_CFD.UK", "mean_reversion_score": 78, "selection_reason": "distance_from_ma50_pct -3.69%"}, {"symbol": "CCC_CFD.UK", "mean_reversion_score": 72, "selection_reason": "distance_from_ma50_pct -2.03%"}, {"symbol": "BYIT_CFD.UK", "mean_reversion_score": 81, "selection_reason": "distance_from_ma50_pct -6.90%"}], "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"}}

{
  "actions": {
    "buy": [
      {
        "reason": "Highest mean-reversion score among candidates",
        "symbol": "TRN_CFD.UK",
        "position_size": 3000
      },
      {
        "reason": "High mean-reversion score and existing flat position",
        "symbol": "BYIT_CFD.UK",
        "position_size": 3000
      }
    ],
    "hold": [
      {
        "reason": "Profitable position with no clear exit signal",
        "symbol": "AKAM_CFD.US"
      },
      {
        "reason": "Marginal loss, no urgency to sell",
        "symbol": "BT_CFD.UK"
      },
      {
        "reason": "No movement, hold existing position",
        "symbol": "BYIT_CFD.UK"
      },
      {
        "reason": "Strong profit, maintain position",
        "symbol": "CABO_CFD.US"
      },
      {
        "reason": "Flat position, wait for better opportunity",
        "symbol": "CBG_CFD.UK"
      },
      {
        "reason": "Profitable position, hold",
        "symbol": "FUTR_CFD.UK"
      },
      {
        "reason": "Flat position, hold",
        "symbol": "HMSO_CFD.UK"
      },
      {
        "reason": "Flat position, hold",
        "symbol": "OCDO_CFD.UK"
      },
      {
        "reason": "Flat position, hold",
        "symbol": "RHIM_CFD.UK"
      },
      {
        "reason": "Flat position, hold",
        "symbol": "SYNT_CFD.UK"
      },
      {
        "reason": "Profitable position, hold",
        "symbol": "UKW_CFD.UK"
      },
      {
        "reason": "Flat position, hold",
        "symbol": "UTG_CFD.UK"
      }
    ],
    "sell": [
      {
        "reason": "Significant unrealized loss and high mean-reversion score in candidates",
        "symbol": "PAGE_CFD.UK"
      }
    ]
  },
  "portfolio_rationale": "Exit PAGE_CFD.UK due to significant loss. Add TRN_CFD.UK and increase BYIT_CFD.UK allocation based on strong mean-reversion signals. Maintain profitable positions and flat holdings per avoid_overtrading policy."
}

{
  "selected_stocks": [
    {
      "symbol": "PAGE_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -9.46%",
      "mean_reversion_score": 85
    },
    {
      "symbol": "TRN_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -12.56%",
      "mean_reversion_score": 92
    },
    {
      "symbol": "UTG_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -3.69%",
      "mean_reversion_score": 78
    },
    {
      "symbol": "CCC_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -2.03%",
      "mean_reversion_score": 72
    },
    {
      "symbol": "BYIT_CFD.UK",
      "selection_reason": "distance_from_ma50_pct -6.90%",
      "mean_reversion_score": 81
    }
  ],
  "rejected_common_reasons": [
    "distance_from_ma50_pct > -3% or missing",
    "missing ma200 data",
    "excessive volatility"
  ]
}