Arena run #634
meanrev-v1 • google • google/gemini-3-pro-preview • US • success
Run status
as_of: 2026-03-14T18:06:47.909233+00:00
started_at: 2026-03-14T19:15:44.350768+00:00
finished_at: 2026-03-14T19:16:49.136881+00:00
duration_ms: 64785
Inputs
{
"as_of": "2026-03-14T18:06:47.909233+00:00",
"dry_run": false,
"selected": [
{
"symbol": "ADBE_CFD.US",
"selection_reason": "Significantly oversold with -7% 1D change and trading 25% below MA200, offering a strong mean reversion setup.",
"mean_reversion_score": 92
},
{
"symbol": "FICO_CFD.US",
"selection_reason": "Deeply oversold conditions (-15% 1D change, -28% vs MA200) suggest potential for a technical bounce.",
"mean_reversion_score": 88
},
{
"symbol": "WDC_CFD.US",
"selection_reason": "Extreme upside extension (+93% vs MA200) indicates high probability of mean reversion (pullback).",
"mean_reversion_score": 85
},
{
"symbol": "GT_CFD.US",
"selection_reason": "Consistent oversold status (-23% vs MA200) with recent weakness (-5% 1D) presents a value reversion opportunity.",
"mean_reversion_score": 82
},
{
"symbol": "MUSA_CFD.US",
"selection_reason": "Recent sharp upside move (+6.9%) extending 16% above MA200 creates a potential short-term fade setup.",
"mean_reversion_score": 78
}
],
"simulate_only": false,
"strict_replay": false,
"universe_symbols": [
"WTB_CFD.UK",
"JDW_CFD.UK",
"UTG_CFD.UK",
"TRN_CFD.UK",
"WIX_CFD.UK",
"KGF_CFD.UK",
"CBG_CFD.UK",
"DLN_CFD.UK",
"MCG_CFD.UK",
"SGRO_CFD.UK",
"EMG_CFD.UK",
"OCDO_CFD.UK",
"LRE_CFD.UK",
"LIO_CFD.UK",
"SMIN_CFD.UK",
"BBY_CFD.UK",
"CCC_CFD.UK",
"ITV_CFD.UK",
"MAB_CFD.UK",
"IMI_CFD.UK",
"DOM_CFD.UK",
"TRST_CFD.UK",
"OSB_CFD.UK",
"IPO_CFD.UK",
"ATG_CFD.UK",
"BME_CFD.UK",
"GROW_CFD.UK",
"WEIR_CFD.UK",
"BYIT_CFD.UK",
"WKP_CFD.UK",
"DPLM_CFD.UK",
"ADBE_CFD.US",
"LTA_CFD.FR",
"PWR_CFD.US",
"MTN_CFD.US",
"IGG_CFD.UK",
"WDC_CFD.US",
"GT_CFD.US",
"HMSO_CFD.UK",
"UKW_CFD.UK",
"GLPG_CFD.NL",
"ARMK_CFD.US",
"SBGI_CFD.US",
"ICG_CFD.UK",
"MUSA_CFD.US",
"FICO_CFD.US",
"APD_CFD.US",
"GRI_CFD.UK",
"SGL_CFD.DE",
"NXST_CFD.US"
]
}Outputs
{
"actions": {
"buy": [
{
"reason": "Strong mean reversion signal (Score 92): Oversold -7% 1D and -25% vs MA200.",
"symbol": "ADBE_CFD.US",
"position_size": 3000
},
{
"reason": "High mean reversion score (88): Deeply oversold conditions (-15% 1D) offering value.",
"symbol": "FICO_CFD.US",
"position_size": 3000
}
],
"hold": [
{
"reason": "Recently opened, holding for development.",
"symbol": "BRBY_CFD.UK"
},
{
"reason": "Flat performance, holding.",
"symbol": "BYIT_CFD.UK"
},
{
"reason": "Profitable position showing strength.",
"symbol": "CCL_CFD.UK"
},
{
"reason": "Recently opened, holding.",
"symbol": "ICG_CFD.UK"
},
{
"reason": "Position down but within tolerance, holding for potential rebound.",
"symbol": "PZC_CFD.UK"
},
{
"reason": "Recently opened, holding.",
"symbol": "TRN_CFD.UK"
},
{
"reason": "Profitable position, holding.",
"symbol": "UKW_CFD.UK"
}
],
"sell": [
{
"reason": "Cutting loss on underperforming position (-10% PnL) held for extended period to free up capital.",
"symbol": "MKS_CFD.UK"
},
{
"reason": "Cutting loss on underperforming position (-8% PnL) to rotate into higher conviction signals.",
"symbol": "ATE_CFD.FR"
}
]
},
"portfolio_rationale": "The portfolio is rotated to cut significant laggards (MKS, ATE) which have dragged on performance for roughly two weeks. Capital is reallocated to top-tier mean reversion candidates (ADBE, FICO) which show extreme oversold conditions and high probability of a technical bounce. This maintains the position count within limits while upgrading the quality of active setups."
}Prompts & responses
#1252 • openrouter • google/gemini-3-pro-preview • 2026-03-14T19:15:44.394979+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": "US", "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": "WTB_CFD.UK", "name": "WHITBREAD PLC", "sector": "", "last_price": 2691.0, "change_1d_pct": 11.659751037344401, "distance_from_ma200_pct": -5.969827496214986, "distance_from_ma50_pct": -5.069507041577781, "volatility_20d_pct": 87.61035263352142, "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": "", "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": "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": "WIX_CFD.UK", "name": "WICKES GROUP PLC", "sector": "", "last_price": 247.5, "change_1d_pct": 15.984816533108393, "distance_from_ma200_pct": 18.647646929530737, "distance_from_ma50_pct": 10.198455173494668, "volatility_20d_pct": 84.25206447406164, "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": 347.0, "change_1d_pct": 2.6020106445890034, "distance_from_ma200_pct": 18.583930168759967, "distance_from_ma50_pct": 6.639688157278489, "volatility_20d_pct": 88.64906606382688, "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": 497.8, "change_1d_pct": -5.89792060491493, "distance_from_ma200_pct": 15.793508864321094, "distance_from_ma50_pct": 3.592137485786795, "volatility_20d_pct": 116.76618625853061, "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": "DLN_CFD.UK", "name": "DERWENT LONDON PLC", "sector": "", "last_price": 1953.0, "change_1d_pct": 10.401356698699837, "distance_from_ma200_pct": 5.069478604951705, "distance_from_ma50_pct": 12.150447212111025, "volatility_20d_pct": 115.39088732649292, "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": 25.72, "change_1d_pct": 2.9623698959167166, "distance_from_ma200_pct": -7.132760074308242, "distance_from_ma50_pct": 8.327577202351844, "volatility_20d_pct": 232.19808875565576, "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": "SGRO_CFD.UK", "name": "SEGRO PLC", "sector": "", "last_price": 789.8, "change_1d_pct": 5.166444740346199, "distance_from_ma200_pct": 16.137238395282736, "distance_from_ma50_pct": 8.124180991500651, "volatility_20d_pct": 71.28658783635437, "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": "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": "LRE_CFD.UK", "name": "LANCASHIRE HOLDINGS LTD", "sector": "", "last_price": 647.0, "change_1d_pct": -2.26586102719033, "distance_from_ma200_pct": 6.266967093949116, "distance_from_ma50_pct": -1.0131237932627712, "volatility_20d_pct": 79.5840954070324, "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": "SMIN_CFD.UK", "name": "SMITHS GROUP PLC", "sector": "", "last_price": 2544.0, "change_1d_pct": 1.4333845019038671, "distance_from_ma200_pct": 14.948150770494873, "distance_from_ma50_pct": 4.167383226889343, "volatility_20d_pct": 72.718462979927, "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": "CCC_CFD.UK", "name": "COMPUTACENTER PLC", "sector": "", "last_price": 3126.0, "change_1d_pct": -1.821608040201006, "distance_from_ma200_pct": 22.396205247786227, "distance_from_ma50_pct": 6.426296215091432, "volatility_20d_pct": 111.01536155240576, "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": "ITV_CFD.UK", "name": "ITV PLC", "sector": "", "last_price": 86.0, "change_1d_pct": 3.92749244712991, "distance_from_ma200_pct": 7.871211807633016, "distance_from_ma50_pct": 5.417994606521215, "volatility_20d_pct": 139.7485078641958, "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": "IMI_CFD.UK", "name": "IMI PLC", "sector": "", "last_price": 2774.0, "change_1d_pct": 4.7583081570997, "distance_from_ma200_pct": 25.227479847754264, "distance_from_ma50_pct": 6.661876238540865, "volatility_20d_pct": 87.69330898337377, "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": 189.21, "change_1d_pct": 4.190528634361246, "distance_from_ma200_pct": -12.46581454882838, "distance_from_ma50_pct": 4.428944053991102, "volatility_20d_pct": 85.812071272284, "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": "TRST_CFD.UK", "name": "TRUSTPILOT AS", "sector": "", "last_price": 156.6, "change_1d_pct": -27.567067530064747, "distance_from_ma200_pct": -26.81677017545049, "distance_from_ma50_pct": -10.671300046318578, "volatility_20d_pct": 228.54402237564213, "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": 575.5, "change_1d_pct": -8.50556438791733, "distance_from_ma200_pct": 7.26309045372473, "distance_from_ma50_pct": -3.1605502163448818, "volatility_20d_pct": 83.79306172690484, "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": "ATG_CFD.UK", "name": "AUCTION TECHNOLOGY GROUP", "sector": "", "last_price": 305.0, "change_1d_pct": 4.2735042735042805, "distance_from_ma200_pct": -30.344980756373573, "distance_from_ma50_pct": -1.1704016694101371, "volatility_20d_pct": 159.9931345477538, "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": "BME_CFD.UK", "name": "B&M EUROPEAN VALUE RETAIL SA", "sector": "", "last_price": 180.0, "change_1d_pct": -0.5799502899751507, "distance_from_ma200_pct": -17.510144533683704, "distance_from_ma50_pct": 3.6906975618860693, "volatility_20d_pct": 107.67302074828436, "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": "WEIR_CFD.UK", "name": "WEIR GROUP PLC/THE", "sector": "", "last_price": 2968.0, "change_1d_pct": -7.250000000000001, "distance_from_ma200_pct": 13.608616555186948, "distance_from_ma50_pct": -2.0329806894725966, "volatility_20d_pct": 126.53973442920609, "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": "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": "DPLM_CFD.UK", "name": "DIPLOMA PLC", "sector": "", "last_price": 5220.0, "change_1d_pct": -5.434782608695654, "distance_from_ma200_pct": 4.8180942215069855, "distance_from_ma50_pct": -4.664614313757087, "volatility_20d_pct": 82.77890721911896, "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": "ADBE_CFD.US", "name": "Adobe Systems Incorporated", "sector": "", "last_price": 254.76, "change_1d_pct": -6.991347522908997, "distance_from_ma200_pct": -24.950575375976236, "distance_from_ma50_pct": -11.024807300743555, "volatility_20d_pct": 75.42837402664499, "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": "LTA_CFD.FR", "name": "ALTAMIR", "sector": "", "last_price": 26.55, "change_1d_pct": -8.290155440414503, "distance_from_ma200_pct": -6.659993998817693, "distance_from_ma50_pct": -8.646607227894187, "volatility_20d_pct": 76.90024899659345, "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": "PWR_CFD.US", "name": "", "sector": "", "last_price": 570.06, "change_1d_pct": -0.40010483096009075, "distance_from_ma200_pct": 32.66130003466283, "distance_from_ma50_pct": 13.629704223111737, "volatility_20d_pct": 75.10747878988178, "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": "MTN_CFD.US", "name": "VAIL RESORTS INC", "sector": "", "last_price": 134.14, "change_1d_pct": -1.251472320376923, "distance_from_ma200_pct": -9.650746994476266, "distance_from_ma50_pct": -2.409284431756342, "volatility_20d_pct": 78.42663697712976, "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": "IGG_CFD.UK", "name": "IG GROUP HOLDINGS PLC", "sector": "", "last_price": 1356.0, "change_1d_pct": 3.1963470319634757, "distance_from_ma200_pct": 21.69129359819437, "distance_from_ma50_pct": 9.822701129829392, "volatility_20d_pct": 89.02278066392904, "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": "WDC_CFD.US", "name": "WESTERN DIGITAL CORP", "sector": "", "last_price": 277.84, "change_1d_pct": 0.33222591362125353, "distance_from_ma200_pct": 93.67833739443938, "distance_from_ma50_pct": 10.13762446177886, "volatility_20d_pct": 155.57328227015603, "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": "GT_CFD.US", "name": "", "sector": "", "last_price": 6.9, "change_1d_pct": -5.089408528198058, "distance_from_ma200_pct": -23.075636716333058, "distance_from_ma50_pct": -22.546752576162355, "volatility_20d_pct": 122.51572489644428, "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": "UKW_CFD.UK", "name": "GREENCOAT UK WIND PLC", "sector": "", "last_price": 96.65, "change_1d_pct": -2.864321608040199, "distance_from_ma200_pct": -13.509595378826178, "distance_from_ma50_pct": -7.518333665048904, "volatility_20d_pct": 52.20244024852636, "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": "GLPG_CFD.NL", "name": "Galapagos", "sector": "", "last_price": 28.28, "change_1d_pct": -0.07067137809186885, "distance_from_ma200_pct": 2.8954256106641596, "distance_from_ma50_pct": -0.9221110457131698, "volatility_20d_pct": 75.5045902569289, "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": "ARMK_CFD.US", "name": "Aramark Holdings", "sector": "", "last_price": 40.6, "change_1d_pct": 1.907630522088355, "distance_from_ma200_pct": 2.8443036034769387, "distance_from_ma50_pct": 2.8775301284195365, "volatility_20d_pct": 79.10676557514627, "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": "SBGI_CFD.US", "name": "SINCLAIR INC", "sector": "", "last_price": 14.31, "change_1d_pct": -1.919122686771757, "distance_from_ma200_pct": -1.4883451969544659, "distance_from_ma50_pct": -3.4439016490782848, "volatility_20d_pct": 151.16131595505473, "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": "ICG_CFD.UK", "name": "ICG Plc", "sector": "", "last_price": 1719.0, "change_1d_pct": -13.356854838709676, "distance_from_ma200_pct": -15.041741119434038, "distance_from_ma50_pct": -11.540628787118589, "volatility_20d_pct": 72.59006184069659, "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": "MUSA_CFD.US", "name": "MURPHY USA INC", "sector": "", "last_price": 463.31, "change_1d_pct": 6.940725694765026, "distance_from_ma200_pct": 16.0947355694389, "distance_from_ma50_pct": 11.440800066579214, "volatility_20d_pct": 82.3524149986316, "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": "FICO_CFD.US", "name": "Fair Isaac Corporation", "sector": "", "last_price": 1146.19, "change_1d_pct": -15.559893914837186, "distance_from_ma200_pct": -27.93651366486388, "distance_from_ma50_pct": -20.68960649744753, "volatility_20d_pct": 109.43033435159907, "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": "APD_CFD.US", "name": "Air Products and Chemicals Inc", "sector": "", "last_price": 291.95, "change_1d_pct": 6.726375434107101, "distance_from_ma200_pct": 7.065615508103273, "distance_from_ma50_pct": 7.196228396444293, "volatility_20d_pct": 49.65127045001544, "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": "GRI_CFD.UK", "name": "GRAINGER PLC", "sector": "", "last_price": 192.4, "change_1d_pct": 0.08322929671245038, "distance_from_ma200_pct": -4.9312468607917275, "distance_from_ma50_pct": 0.9128310349964197, "volatility_20d_pct": 71.43116862190418, "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": "SGL_CFD.DE", "name": "SGL Carbon SE", "sector": "", "last_price": 3.625, "change_1d_pct": -2.658431793770144, "distance_from_ma200_pct": 5.144388625262497, "distance_from_ma50_pct": -8.381859355412669, "volatility_20d_pct": 78.92643748151579, "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": "NXST_CFD.US", "name": "", "sector": "", "last_price": 236.39, "change_1d_pct": -3.392047079978755, "distance_from_ma200_pct": 18.26418454796057, "distance_from_ma50_pct": 5.009017653277881, "volatility_20d_pct": 103.87063237790765, "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": "ADBE_CFD.US",
"selection_reason": "Significantly oversold with -7% 1D change and trading 25% below MA200, offering a strong mean reversion setup.",
"mean_reversion_score": 92
},
{
"symbol": "FICO_CFD.US",
"selection_reason": "Deeply oversold conditions (-15% 1D change, -28% vs MA200) suggest potential for a technical bounce.",
"mean_reversion_score": 88
},
{
"symbol": "WDC_CFD.US",
"selection_reason": "Extreme upside extension (+93% vs MA200) indicates high probability of mean reversion (pullback).",
"mean_reversion_score": 85
},
{
"symbol": "GT_CFD.US",
"selection_reason": "Consistent oversold status (-23% vs MA200) with recent weakness (-5% 1D) presents a value reversion opportunity.",
"mean_reversion_score": 82
},
{
"symbol": "MUSA_CFD.US",
"selection_reason": "Recent sharp upside move (+6.9%) extending 16% above MA200 creates a potential short-term fade setup.",
"mean_reversion_score": 78
}
],
"rejected_common_reasons": [
"Move too extreme (>20%) indicating likely binary/news event (e.g., TRST, OCDO)",
"Non-US region preference (e.g., UK/EU stocks skipped to align with task region)",
"Lack of significant mean reversion signal (price near MAs or low volatility)"
]
}#1253 • openrouter • google/gemini-3-pro-preview • 2026-03-14T19:16:22.348464+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": "US", "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": "AAL_CFD.UK", "qty": 0.0, "avg_price": 3035.0, "last_price": 3291.0, "unrealized_pnl": 0.0, "opened_at": "2026-03-09T10:19:46.508085+00:00"}, {"symbol": "ATE_CFD.FR", "qty": 48.115477145148354, "avg_price": 62.35, "last_price": 57.25, "unrealized_pnl": -245.38893344025666, "opened_at": "2026-02-27T18:23:55.960577+00:00"}, {"symbol": "BRBY_CFD.UK", "qty": 2.8222013170272815, "avg_price": 1063.0, "last_price": 1054.5, "unrealized_pnl": -23.98871119473189, "opened_at": "2026-03-09T10:19:46.508085+00:00"}, {"symbol": "BYIT_CFD.UK", "qty": 10.252904989747094, "avg_price": 292.6, "last_price": 292.6, "unrealized_pnl": 0.0, "opened_at": "2026-03-06T18:02:13.212382+00:00"}, {"symbol": "CABO_CFD.US", "qty": 0.0, "avg_price": 94.6, "last_price": 108.6, "unrealized_pnl": 0.0, "opened_at": "2026-02-27T18:23:55.960577+00:00"}, {"symbol": "CCL_CFD.UK", "qty": 1.5416238437821173, "avg_price": 1945.9999999999998, "last_price": 1989.0, "unrealized_pnl": 66.2898252826314, "opened_at": "2026-03-06T18:02:13.212382+00:00"}, {"symbol": "HIK_CFD.UK", "qty": 0.0, "avg_price": 1408.0, "last_price": 1234.0, "unrealized_pnl": 0.0, "opened_at": "2026-02-26T10:33:24.101894+00:00"}, {"symbol": "ICG_CFD.UK", "qty": 1.772002362669817, "avg_price": 1693.0, "last_price": 1693.0, "unrealized_pnl": 0.0, "opened_at": "2026-03-09T18:18:45.954380+00:00"}, {"symbol": "LIO_CFD.UK", "qty": 0.0, "avg_price": 250.0, "last_price": 270.0, "unrealized_pnl": 0.0, "opened_at": "2026-02-26T10:33:24.101894+00:00"}, {"symbol": "MKS_CFD.UK", "qty": 7.5452716297786715, "avg_price": 397.6, "last_price": 355.5, "unrealized_pnl": -317.65593561368223, "opened_at": "2026-03-01T10:30:13.622938+00:00"}, {"symbol": "PZC_CFD.UK", "qty": 36.67481662591687, "avg_price": 81.8, "last_price": 77.7, "unrealized_pnl": -150.36674816625896, "opened_at": "2026-03-01T10:30:13.622938+00:00"}, {"symbol": "TRN_CFD.UK", "qty": 16.260162601626018, "avg_price": 184.5, "last_price": 184.5, "unrealized_pnl": 0.0, "opened_at": "2026-03-12T10:21:39.078796+00:00"}, {"symbol": "UKW_CFD.UK", "qty": 32.48511099079589, "avg_price": 92.35, "last_price": 95.01, "unrealized_pnl": 86.41039523551741, "opened_at": "2026-02-25T17:57:28.313088+00:00"}, {"symbol": "WIZZ_CFD.UK", "qty": 0.0, "avg_price": 1299.0, "last_price": 927.0, "unrealized_pnl": 0.0, "opened_at": "2026-02-25T17:57:28.313088+00:00"}], "candidates": [{"symbol": "ADBE_CFD.US", "mean_reversion_score": 92, "selection_reason": "Significantly oversold with -7% 1D change and trading 25% below MA200, offering a strong mean reversion setup."}, {"symbol": "FICO_CFD.US", "mean_reversion_score": 88, "selection_reason": "Deeply oversold conditions (-15% 1D change, -28% vs MA200) suggest potential for a technical bounce."}, {"symbol": "WDC_CFD.US", "mean_reversion_score": 85, "selection_reason": "Extreme upside extension (+93% vs MA200) indicates high probability of mean reversion (pullback)."}, {"symbol": "GT_CFD.US", "mean_reversion_score": 82, "selection_reason": "Consistent oversold status (-23% vs MA200) with recent weakness (-5% 1D) presents a value reversion opportunity."}, {"symbol": "MUSA_CFD.US", "mean_reversion_score": 78, "selection_reason": "Recent sharp upside move (+6.9%) extending 16% above MA200 creates a potential short-term fade setup."}], "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": "Strong mean reversion signal (Score 92): Oversold -7% 1D and -25% vs MA200.",
"symbol": "ADBE_CFD.US",
"position_size": 3000
},
{
"reason": "High mean reversion score (88): Deeply oversold conditions (-15% 1D) offering value.",
"symbol": "FICO_CFD.US",
"position_size": 3000
}
],
"hold": [
{
"reason": "Recently opened, holding for development.",
"symbol": "BRBY_CFD.UK"
},
{
"reason": "Flat performance, holding.",
"symbol": "BYIT_CFD.UK"
},
{
"reason": "Profitable position showing strength.",
"symbol": "CCL_CFD.UK"
},
{
"reason": "Recently opened, holding.",
"symbol": "ICG_CFD.UK"
},
{
"reason": "Position down but within tolerance, holding for potential rebound.",
"symbol": "PZC_CFD.UK"
},
{
"reason": "Recently opened, holding.",
"symbol": "TRN_CFD.UK"
},
{
"reason": "Profitable position, holding.",
"symbol": "UKW_CFD.UK"
}
],
"sell": [
{
"reason": "Cutting loss on underperforming position (-10% PnL) held for extended period to free up capital.",
"symbol": "MKS_CFD.UK"
},
{
"reason": "Cutting loss on underperforming position (-8% PnL) to rotate into higher conviction signals.",
"symbol": "ATE_CFD.FR"
}
]
},
"portfolio_rationale": "The portfolio is rotated to cut significant laggards (MKS, ATE) which have dragged on performance for roughly two weeks. Capital is reallocated to top-tier mean reversion candidates (ADBE, FICO) which show extreme oversold conditions and high probability of a technical bounce. This maintains the position count within limits while upgrading the quality of active setups."
}Selection logs
#623 • stage1 • 2026-03-14T19:16:22.346285+00:00
{
"selected_stocks": [
{
"symbol": "ADBE_CFD.US",
"selection_reason": "Significantly oversold with -7% 1D change and trading 25% below MA200, offering a strong mean reversion setup.",
"mean_reversion_score": 92
},
{
"symbol": "FICO_CFD.US",
"selection_reason": "Deeply oversold conditions (-15% 1D change, -28% vs MA200) suggest potential for a technical bounce.",
"mean_reversion_score": 88
},
{
"symbol": "WDC_CFD.US",
"selection_reason": "Extreme upside extension (+93% vs MA200) indicates high probability of mean reversion (pullback).",
"mean_reversion_score": 85
},
{
"symbol": "GT_CFD.US",
"selection_reason": "Consistent oversold status (-23% vs MA200) with recent weakness (-5% 1D) presents a value reversion opportunity.",
"mean_reversion_score": 82
},
{
"symbol": "MUSA_CFD.US",
"selection_reason": "Recent sharp upside move (+6.9%) extending 16% above MA200 creates a potential short-term fade setup.",
"mean_reversion_score": 78
}
],
"rejected_common_reasons": [
"Move too extreme (>20%) indicating likely binary/news event (e.g., TRST, OCDO)",
"Non-US region preference (e.g., UK/EU stocks skipped to align with task region)",
"Lack of significant mean reversion signal (price near MAs or low volatility)"
]
}