Arena run #275

meanrev-v1minimaxminimax/minimax-m2.1EUsuccess
Arena
Run status
as_of: 2026-02-24T11:23:36.694156+00:00
started_at: 2026-02-24T15:18:03.268622+00:00
finished_at: 2026-02-24T15:20:51.204577+00:00
duration_ms: 167934
Inputs
{
  "dry_run": false,
  "selected": [
    {
      "symbol": "BIG_CFD.FR",
      "selection_reason": "Extreme oversold: -21.7% 1-day drop, -47.2% below MA50, deep mean-reversion setup",
      "mean_reversion_score": 92
    },
    {
      "symbol": "LMND_CFD.US",
      "selection_reason": "Significant oversold: -11.5% 1-day drop, -34.7% below MA50, -11.9% below MA200",
      "mean_reversion_score": 85
    },
    {
      "symbol": "HUBS_CFD.US",
      "selection_reason": "Strong oversold: -9.8% 1-day drop, -39.1% below MA50, potential bounce candidate",
      "mean_reversion_score": 82
    },
    {
      "symbol": "MAN_CFD.US",
      "selection_reason": "Moderate oversold: -8.8% 1-day drop, -15.1% below MA50, reasonable mean-reversion range",
      "mean_reversion_score": 78
    },
    {
      "symbol": "LIO_CFD.UK",
      "selection_reason": "Oversold: -3.5% 1-day drop, -23.4% below MA200, approaching attractive entry point",
      "mean_reversion_score": 74
    }
  ],
  "universe_symbols": [
    "WIZZ_CFD.UK",
    "GROW_CFD.UK",
    "BIG_CFD.FR",
    "LMND_CFD.US",
    "LIO_CFD.UK",
    "TCAP_CFD.UK",
    "ATG_CFD.UK",
    "ACA_CFD.FR",
    "ANTO_CFD.UK",
    "HUBS_CFD.US",
    "DEI_CFD.US",
    "MAN_CFD.US",
    "BPOST_CFD.BE"
  ]
}
Outputs
{
  "actions": {
    "buy": [
      {
        "reason": "Top mean reversion candidate with score 85; significant oversold conditions (-11.5% 1-day drop, -34.7% below MA50, -11.9% below MA200); US exposure adds diversification; fixed position size of 3000 applied per strategy rules.",
        "symbol": "LMND_CFD.US",
        "position_size": 3000
      }
    ],
    "hold": [
      {
        "reason": "Position already established at break-even; high mean reversion score (92) supports holding. No action needed as position is sized appropriately.",
        "symbol": "BIG_CFD.FR"
      },
      {
        "reason": "Position at break-even with no clear mean reversion signal; maintaining current holding.",
        "symbol": "BYIT_CFD.UK"
      },
      {
        "reason": "No position currently held (qty=0); price below avg but not a top candidate; skipping to avoid overtrading.",
        "symbol": "DSY_CFD.FR"
      },
      {
        "reason": "No position currently held (qty=0); price above avg but not a top candidate; skipping to avoid overtrading.",
        "symbol": "ERA_CFD.FR"
      },
      {
        "reason": "Position showing +3.4% unrealized gain; strong performer, holding to capture further upside.",
        "symbol": "FUTR_CFD.UK"
      },
      {
        "reason": "Position at break-even with no clear mean reversion signal; maintaining current holding.",
        "symbol": "OCDO_CFD.UK"
      },
      {
        "reason": "Position showing -2.1% unrealized loss; holding as loss is marginal and position size is appropriate.",
        "symbol": "RCO_CFD.FR"
      },
      {
        "reason": "Position at break-even with no clear mean reversion signal; maintaining current holding.",
        "symbol": "RMV_CFD.UK"
      },
      {
        "reason": "No position currently held (qty=0); price above avg but not a top candidate; skipping to avoid overtrading.",
        "symbol": "TRST_CFD.UK"
      }
    ],
    "sell": []
  },
  "portfolio_rationale": "Portfolio management follows mean-reversion strategy with strict constraints. One buy action executed on LMND_CFD.US as the highest-scoring candidate showing strong oversold conditions with clear mean-reversion setup. No sells executed as all current positions are either at break-even or showing marginal P&L, and overtrading rules limit sells to 2 per run. All other candidates skipped to avoid exceeding buy limits and maintain portfolio discipline. Current holdings maintained as they show no clear deterioration requiring exit. Gross leverage remains well within 3.0 limit. Portfolio maintains 9 active positions with appropriate sizing."
}
Prompts & responses
#537openrouterminimax/minimax-m2.12026-02-24T15:18:03.281612+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": "WIZZ_CFD.UK", "name": "", "sector": "", "last_price": 1403.0, "change_1d_pct": 0.8626887131560013, "distance_from_ma200_pct": 12.315696286669354, "distance_from_ma50_pct": 8.235260718145199, "volatility_20d_pct": 106.92938780570063, "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": 459.0, "change_1d_pct": -7.571486105517522, "distance_from_ma200_pct": 21.683237060419323, "distance_from_ma50_pct": -5.374482033520933, "volatility_20d_pct": 111.65238257143292, "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": 0.462, "change_1d_pct": -21.69491525423728, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -47.171019530713984, "volatility_20d_pct": 12111.249525469973, "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": "LMND_CFD.US", "name": "Lemonade Inc", "sector": "", "last_price": 50.56, "change_1d_pct": -11.45359019264448, "distance_from_ma200_pct": -11.89220038599441, "distance_from_ma50_pct": -34.66434063448989, "volatility_20d_pct": 8596.101243436613, "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": 250.0, "change_1d_pct": -3.474903474903479, "distance_from_ma200_pct": -23.426979584867023, "distance_from_ma50_pct": -3.8206293208582265, "volatility_20d_pct": 4554.2291072837315, "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": "TCAP_CFD.UK", "name": "TP ICAP GROUP PLC", "sector": "", "last_price": 257.0, "change_1d_pct": -3.018867924528301, "distance_from_ma200_pct": -4.028452389710213, "distance_from_ma50_pct": 0.0555171858003467, "volatility_20d_pct": 2720.691666816466, "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": 315.5, "change_1d_pct": -0.15822784810126667, "distance_from_ma200_pct": null, "distance_from_ma50_pct": 2.9598929608719793, "volatility_20d_pct": 4125.199412345139, "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": "ACA_CFD.FR", "name": "Credit Agricole", "sector": "", "last_price": 17.77, "change_1d_pct": -0.9476031215161718, "distance_from_ma200_pct": null, "distance_from_ma50_pct": 0.9676301300590495, "volatility_20d_pct": 2280.6233943358093, "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": "ANTO_CFD.UK", "name": "ANTOFAGASTA PLC", "sector": "", "last_price": 3711.0, "change_1d_pct": -0.48270313757039496, "distance_from_ma200_pct": null, "distance_from_ma50_pct": 8.94518979537915, "volatility_20d_pct": 5899.884974306768, "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": "HUBS_CFD.US", "name": "HubSpot Inc", "sector": "", "last_price": 209.29, "change_1d_pct": -9.76934684199181, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -39.141166091198976, "volatility_20d_pct": 7372.220885228378, "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": "DEI_CFD.US", "name": "Douglas Emmett Inc", "sector": "", "last_price": 10.11, "change_1d_pct": 2.3279352226720507, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -7.731857118801466, "volatility_20d_pct": 2991.4769682262086, "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": "MAN_CFD.US", "name": "ManpowerGroup Inc", "sector": "", "last_price": 26.13, "change_1d_pct": -8.827634333565948, "distance_from_ma200_pct": null, "distance_from_ma50_pct": -15.1110735704029, "volatility_20d_pct": 9348.440738953555, "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": "BPOST_CFD.BE", "name": "Bpost", "sector": "", "last_price": 2.245, "change_1d_pct": 0.0, "distance_from_ma200_pct": null, "distance_from_ma50_pct": 7.002592846793276, "volatility_20d_pct": 2622.8624681176075, "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": "BIG_CFD.FR",
      "selection_reason": "Extreme oversold: -21.7% 1-day drop, -47.2% below MA50, deep mean-reversion setup",
      "mean_reversion_score": 92
    },
    {
      "symbol": "LMND_CFD.US",
      "selection_reason": "Significant oversold: -11.5% 1-day drop, -34.7% below MA50, -11.9% below MA200",
      "mean_reversion_score": 85
    },
    {
      "symbol": "HUBS_CFD.US",
      "selection_reason": "Strong oversold: -9.8% 1-day drop, -39.1% below MA50, potential bounce candidate",
      "mean_reversion_score": 82
    },
    {
      "symbol": "MAN_CFD.US",
      "selection_reason": "Moderate oversold: -8.8% 1-day drop, -15.1% below MA50, reasonable mean-reversion range",
      "mean_reversion_score": 78
    },
    {
      "symbol": "LIO_CFD.UK",
      "selection_reason": "Oversold: -3.5% 1-day drop, -23.4% below MA200, approaching attractive entry point",
      "mean_reversion_score": 74
    }
  ],
  "rejected_common_reasons": [
    "WIZZ_CFD.UK: positive momentum but above MA50 - not oversold enough for mean-reversion",
    "TCAP_CFD.UK: too close to MA50 (0.06%) - insufficient distance for mean-reversion signal",
    "ACA_CFD.FR: minimal 1-day move (-0.95%), not a meaningful deviation",
    "ANTO_CFD.UK: positive 1-day change (+8.9% above MA50), not oversold",
    "BPOST_CFD.BE: flat 0% change, no mean-reversion signal",
    "DEI_CFD.US: positive 1-day change (+2.3%), wrong direction for oversold setup",
    "ATG_CFD.UK: minimal movement (-0.16%), no clear mean-reversion opportunity"
  ]
}
#538openrouterminimax/minimax-m2.12026-02-24T15:18:24.624345+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": "BIG_CFD.FR", "qty": 6622.516556291391, "avg_price": 0.453, "last_price": 0.453, "unrealized_pnl": 0.0, "opened_at": "2026-02-22T09:32:59.506254+00:00"}, {"symbol": "BYIT_CFD.UK", "qty": 20.505809979494188, "avg_price": 292.6, "last_price": 292.6, "unrealized_pnl": 0.0, "opened_at": "2026-02-16T09:30:55.514112+00:00"}, {"symbol": "DSY_CFD.FR", "qty": 0.0, "avg_price": 17.881, "last_price": 17.133, "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": 48.88, "unrealized_pnl": 0.0, "opened_at": "2026-02-19T17:33:27.020111+00:00"}, {"symbol": "FUTR_CFD.UK", "qty": 22.466300549176236, "avg_price": 400.6, "last_price": 414.2, "unrealized_pnl": 305.54168746879606, "opened_at": "2026-02-19T00:47:27.070066+00:00"}, {"symbol": "OCDO_CFD.UK", "qty": 13.824884792626728, "avg_price": 217.0, "last_price": 217.0, "unrealized_pnl": 0.0, "opened_at": "2026-02-22T09:32:59.506254+00:00"}, {"symbol": "RCO_CFD.FR", "qty": 67.65899864682002, "avg_price": 44.34, "last_price": 43.5, "unrealized_pnl": -56.83355886332905, "opened_at": "2026-02-23T10:32:09.961595+00:00"}, {"symbol": "RMV_CFD.UK", "qty": 7.070469007777516, "avg_price": 424.3, "last_price": 424.3, "unrealized_pnl": 0.0, "opened_at": "2026-02-19T00:47:27.070066+00:00"}, {"symbol": "TRST_CFD.UK", "qty": 0.0, "avg_price": 134.3, "last_price": 139.6, "unrealized_pnl": 0.0, "opened_at": "2026-02-19T09:33:49.074031+00:00"}], "candidates": [{"symbol": "BIG_CFD.FR", "mean_reversion_score": 92, "selection_reason": "Extreme oversold: -21.7% 1-day drop, -47.2% below MA50, deep mean-reversion setup"}, {"symbol": "LMND_CFD.US", "mean_reversion_score": 85, "selection_reason": "Significant oversold: -11.5% 1-day drop, -34.7% below MA50, -11.9% below MA200"}, {"symbol": "HUBS_CFD.US", "mean_reversion_score": 82, "selection_reason": "Strong oversold: -9.8% 1-day drop, -39.1% below MA50, potential bounce candidate"}, {"symbol": "MAN_CFD.US", "mean_reversion_score": 78, "selection_reason": "Moderate oversold: -8.8% 1-day drop, -15.1% below MA50, reasonable mean-reversion range"}, {"symbol": "LIO_CFD.UK", "mean_reversion_score": 74, "selection_reason": "Oversold: -3.5% 1-day drop, -23.4% below MA200, approaching attractive entry point"}], "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": [
      {
        "reason": "Top mean reversion candidate with score 85; significant oversold conditions (-11.5% 1-day drop, -34.7% below MA50, -11.9% below MA200); US exposure adds diversification; fixed position size of 3000 applied per strategy rules.",
        "symbol": "LMND_CFD.US",
        "position_size": 3000
      }
    ],
    "hold": [
      {
        "reason": "Position already established at break-even; high mean reversion score (92) supports holding. No action needed as position is sized appropriately.",
        "symbol": "BIG_CFD.FR"
      },
      {
        "reason": "Position at break-even with no clear mean reversion signal; maintaining current holding.",
        "symbol": "BYIT_CFD.UK"
      },
      {
        "reason": "No position currently held (qty=0); price below avg but not a top candidate; skipping to avoid overtrading.",
        "symbol": "DSY_CFD.FR"
      },
      {
        "reason": "No position currently held (qty=0); price above avg but not a top candidate; skipping to avoid overtrading.",
        "symbol": "ERA_CFD.FR"
      },
      {
        "reason": "Position showing +3.4% unrealized gain; strong performer, holding to capture further upside.",
        "symbol": "FUTR_CFD.UK"
      },
      {
        "reason": "Position at break-even with no clear mean reversion signal; maintaining current holding.",
        "symbol": "OCDO_CFD.UK"
      },
      {
        "reason": "Position showing -2.1% unrealized loss; holding as loss is marginal and position size is appropriate.",
        "symbol": "RCO_CFD.FR"
      },
      {
        "reason": "Position at break-even with no clear mean reversion signal; maintaining current holding.",
        "symbol": "RMV_CFD.UK"
      },
      {
        "reason": "No position currently held (qty=0); price above avg but not a top candidate; skipping to avoid overtrading.",
        "symbol": "TRST_CFD.UK"
      }
    ],
    "sell": []
  },
  "portfolio_rationale": "Portfolio management follows mean-reversion strategy with strict constraints. One buy action executed on LMND_CFD.US as the highest-scoring candidate showing strong oversold conditions with clear mean-reversion setup. No sells executed as all current positions are either at break-even or showing marginal P&L, and overtrading rules limit sells to 2 per run. All other candidates skipped to avoid exceeding buy limits and maintain portfolio discipline. Current holdings maintained as they show no clear deterioration requiring exit. Gross leverage remains well within 3.0 limit. Portfolio maintains 9 active positions with appropriate sizing."
}
Selection logs
#267stage12026-02-24T15:18:24.622367+00:00
{
  "selected_stocks": [
    {
      "symbol": "BIG_CFD.FR",
      "selection_reason": "Extreme oversold: -21.7% 1-day drop, -47.2% below MA50, deep mean-reversion setup",
      "mean_reversion_score": 92
    },
    {
      "symbol": "LMND_CFD.US",
      "selection_reason": "Significant oversold: -11.5% 1-day drop, -34.7% below MA50, -11.9% below MA200",
      "mean_reversion_score": 85
    },
    {
      "symbol": "HUBS_CFD.US",
      "selection_reason": "Strong oversold: -9.8% 1-day drop, -39.1% below MA50, potential bounce candidate",
      "mean_reversion_score": 82
    },
    {
      "symbol": "MAN_CFD.US",
      "selection_reason": "Moderate oversold: -8.8% 1-day drop, -15.1% below MA50, reasonable mean-reversion range",
      "mean_reversion_score": 78
    },
    {
      "symbol": "LIO_CFD.UK",
      "selection_reason": "Oversold: -3.5% 1-day drop, -23.4% below MA200, approaching attractive entry point",
      "mean_reversion_score": 74
    }
  ],
  "rejected_common_reasons": [
    "WIZZ_CFD.UK: positive momentum but above MA50 - not oversold enough for mean-reversion",
    "TCAP_CFD.UK: too close to MA50 (0.06%) - insufficient distance for mean-reversion signal",
    "ACA_CFD.FR: minimal 1-day move (-0.95%), not a meaningful deviation",
    "ANTO_CFD.UK: positive 1-day change (+8.9% above MA50), not oversold",
    "BPOST_CFD.BE: flat 0% change, no mean-reversion signal",
    "DEI_CFD.US: positive 1-day change (+2.3%), wrong direction for oversold setup",
    "ATG_CFD.UK: minimal movement (-0.16%), no clear mean-reversion opportunity"
  ]
}