Arena run #367
meanrev-v1 • amazon • amazon/nova-premier-v1 • EU • success
Run status
as_of: 2026-03-02T10:31:26.559356+00:00
started_at: 2026-03-02T12:00:41.434950+00:00
finished_at: 2026-03-02T12:00:59.847900+00:00
duration_ms: 18411
Inputs
{
"dry_run": false,
"selected": [
{
"symbol": "EZJ_CFD.UK",
"selection_reason": "distance_from_ma50_pct below -5%",
"mean_reversion_score": 68
},
{
"symbol": "BRBY_CFD.UK",
"selection_reason": "distance_from_ma50_pct below -5%",
"mean_reversion_score": 65
},
{
"symbol": "KRN_CFD.DE",
"selection_reason": "distance_from_ma50_pct below -5%",
"mean_reversion_score": 62
},
{
"symbol": "TCAP_CFD.UK",
"selection_reason": "positive distance_from_ma50_pct with low volatility",
"mean_reversion_score": 58
},
{
"symbol": "PSON_CFD.UK",
"selection_reason": "distance_from_ma50_pct near 0",
"mean_reversion_score": 55
}
],
"universe_symbols": [
"CCL_CFD.UK",
"WIZZ_CFD.UK",
"DLN_CFD.UK",
"TUI1_CFD.DE",
"CRDA_CFD.UK",
"ADJ_CFD.DE",
"UKW_CFD.UK",
"EZJ_CFD.UK",
"HIK_CFD.UK",
"PSN_CFD.UK",
"STM_CFD.DE",
"SRT3_CFD.DE",
"IFX_CFD.DE",
"BTRW_CFD.UK",
"BRBY_CFD.UK",
"KRN_CFD.DE",
"PHARM_CFD.NL",
"CFEB_CFD.BE",
"JUN3_CFD.DE",
"INGA_CFD.NL",
"TTK_CFD.DE",
"IMCD_CFD.NL",
"PHIA_CFD.NL",
"DPLM_CFD.UK",
"TLX_CFD.DE",
"SEM_CFD.PT",
"MNDI_CFD.UK",
"TCAP_CFD.UK",
"PSON_CFD.UK",
"IPO_CFD.UK",
"ATG_CFD.UK",
"BLND_CFD.UK",
"NVG_CFD.PT",
"KBX_CFD.DE",
"CCC_CFD.UK",
"KWS_CFD.DE",
"IMI_CFD.UK",
"BYIT_CFD.UK",
"KTN_CFD.DE",
"LSEG_CFD.UK",
"WKP_CFD.UK",
"SON_CFD.PT",
"TKA_CFD.DE",
"COTY_CFD.US",
"XFAB_CFD.FR",
"MCG_CFD.UK",
"INH_CFD.DE",
"HLMA_CFD.UK",
"FUTR_CFD.UK",
"SZG_CFD.DE"
]
}Outputs
{
"actions": {
"buy": [
{
"reason": "Top-ranked mean-reversion candidate with 68 score",
"symbol": "EZJ_CFD.UK",
"position_size": 3000
},
{
"reason": "Second-best candidate with 65 score",
"symbol": "BRBY_CFD.UK",
"position_size": 3000
}
],
"hold": [
{
"reason": "Marginal gain not justifying trade",
"symbol": "AKAM_CFD.US"
},
{
"reason": "No movement detected",
"symbol": "BYIT_CFD.UK"
},
{
"reason": "Recent gain but not overtrading",
"symbol": "CABO_CFD.US"
},
{
"reason": "Minor loss not requiring action",
"symbol": "EXE_CFD.FR"
},
{
"reason": "Strong gain but holding to avoid churn",
"symbol": "FUTR_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "HMSO_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "OCDO_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "PAGE_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "UKW_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "WIZZ_CFD.UK"
},
{
"reason": "Positive gain but holding",
"symbol": "WPP_CFD.UK"
}
],
"sell": [
{
"reason": "Underperforming position with -2.2% return",
"symbol": "ADP_CFD.FR"
}
]
},
"portfolio_rationale": "Maintained core holdings while pruning underperforming ADP_CFD.FR. Added two EU-focused mean-reversion candidates with strong statistical signals per strategy rules."
}Prompts & responses
#721 • openrouter • amazon/nova-premier-v1 • 2026-03-02T12:00:41.477412+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": "CCL_CFD.UK", "name": "CARNIVAL PLC", "sector": "", "last_price": 2385.0, "change_1d_pct": -1.6089108910891103, "distance_from_ma200_pct": null, "distance_from_ma50_pct": 7.926929998438448, "volatility_20d_pct": 4392.230277210259, "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": "WIZZ_CFD.UK", "name": "WIZZ AIR HOLDINGS PLC", "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": "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": "TUI1_CFD.DE", "name": "", "sector": "", "last_price": 7.406, "change_1d_pct": -6.027153914477868, "distance_from_ma200_pct": -7.568442223724048, "distance_from_ma50_pct": -16.089589036129304, "volatility_20d_pct": 88.80272391003092, "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": "CRDA_CFD.UK", "name": "CRODA INTERNATIONAL PLC", "sector": "", "last_price": 3121.0, "change_1d_pct": 13.367235742826011, "distance_from_ma200_pct": 10.093851216079353, "distance_from_ma50_pct": 9.83246554776207, "volatility_20d_pct": 109.18178749390499, "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": "ADJ_CFD.DE", "name": "ADLER GROUP SA", "sector": "", "last_price": 0.199, "change_1d_pct": -4.784688995215303, "distance_from_ma200_pct": -5.481143725657822, "distance_from_ma50_pct": 2.6619892695006087, "volatility_20d_pct": 307.67398813688357, "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": 98.15, "change_1d_pct": -2.163078149920239, "distance_from_ma200_pct": -12.46829595436757, "distance_from_ma50_pct": -6.845149398930528, "volatility_20d_pct": 32.62462101640031, "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": "EZJ_CFD.UK", "name": "EASYJET PLC", "sector": "", "last_price": 463.4, "change_1d_pct": -4.216618437370823, "distance_from_ma200_pct": -7.198662250893051, "distance_from_ma50_pct": -5.177155429252423, "volatility_20d_pct": 79.61549927100283, "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": 1342.0, "change_1d_pct": -14.24920127795527, "distance_from_ma200_pct": -25.484908209150536, "distance_from_ma50_pct": -13.193905410076656, "volatility_20d_pct": 150.6436529845701, "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": "", "sector": "", "last_price": 1534.5, "change_1d_pct": 7.382785164450656, "distance_from_ma200_pct": 21.219431937066368, "distance_from_ma50_pct": 9.190705106538676, "volatility_20d_pct": 86.88935643255697, "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": "STM_CFD.DE", "name": "", "sector": "", "last_price": 18.48, "change_1d_pct": -3.251138683838539, "distance_from_ma200_pct": -18.91400935999108, "distance_from_ma50_pct": -6.520971574888945, "volatility_20d_pct": 66.36614189699937, "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": "SRT3_CFD.DE", "name": "SARTORIUS AG-VORZUG", "sector": "", "last_price": 232.039, "change_1d_pct": -2.0820937406371254, "distance_from_ma200_pct": 4.5173075894017645, "distance_from_ma50_pct": -5.142892930212617, "volatility_20d_pct": 71.76521948201356, "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": "IFX_CFD.DE", "name": "", "sector": "", "last_price": 44.725, "change_1d_pct": -3.7136706135629693, "distance_from_ma200_pct": 22.3777371843352, "distance_from_ma50_pct": 7.200262314068384, "volatility_20d_pct": 59.71969804472953, "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": "BTRW_CFD.UK", "name": "Barratt Redrow Plc", "sector": "", "last_price": 377.4, "change_1d_pct": 0.9090909090909038, "distance_from_ma200_pct": -5.28549121293298, "distance_from_ma50_pct": -0.5047525194126434, "volatility_20d_pct": 106.95952062178588, "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": "BRBY_CFD.UK", "name": "BURBERRY GROUP PLC", "sector": "", "last_price": 1160.5, "change_1d_pct": -1.4646571853109691, "distance_from_ma200_pct": -2.711772076777963, "distance_from_ma50_pct": -5.162603027899426, "volatility_20d_pct": 121.74049854554332, "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": "KRN_CFD.DE", "name": "KRONES AG", "sector": "", "last_price": 128.715, "change_1d_pct": -3.0760542168674743, "distance_from_ma200_pct": -3.49026122524142, "distance_from_ma50_pct": -6.183896327137606, "volatility_20d_pct": 46.48685634229259, "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": "PHARM_CFD.NL", "name": "Pharming Group", "sector": "", "last_price": 1.3820000000000001, "change_1d_pct": -2.949438202247179, "distance_from_ma200_pct": 36.789021245849106, "distance_from_ma50_pct": 4.229516109569187, "volatility_20d_pct": 60.12090160597311, "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": "CFEB_CFD.BE", "name": "Compagnie d'Entreprises CFE SA", "sector": "", "last_price": 12.1, "change_1d_pct": 18.048780487804873, "distance_from_ma200_pct": 41.14861140679087, "distance_from_ma50_pct": 27.1139255931808, "volatility_20d_pct": 137.75652270791497, "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": "JUN3_CFD.DE", "name": "", "sector": "", "last_price": 31.68, "change_1d_pct": -10.983730928095758, "distance_from_ma200_pct": -7.089799116883844, "distance_from_ma50_pct": -12.138966867404722, "volatility_20d_pct": 57.15621965909373, "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": "INGA_CFD.NL", "name": "", "sector": "", "last_price": 23.815, "change_1d_pct": -4.1495612975931735, "distance_from_ma200_pct": 9.918157935061744, "distance_from_ma50_pct": -3.352450460775258, "volatility_20d_pct": 47.47631522492976, "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": "TTK_CFD.DE", "name": "TAKKT AG", "sector": "", "last_price": 3.185, "change_1d_pct": -3.4848484848484795, "distance_from_ma200_pct": -34.88139110522738, "distance_from_ma50_pct": -13.07456755620814, "volatility_20d_pct": 70.75710328425185, "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": "IMCD_CFD.NL", "name": "", "sector": "", "last_price": 78.935, "change_1d_pct": 1.762324669966997, "distance_from_ma200_pct": -28.33291984903926, "distance_from_ma50_pct": -10.138487025151887, "volatility_20d_pct": 127.85997469001028, "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": "PHIA_CFD.NL", "name": "", "sector": "", "last_price": 26.67, "change_1d_pct": 0.7555723460521468, "distance_from_ma200_pct": 14.469562127099422, "distance_from_ma50_pct": 6.556820315715051, "volatility_20d_pct": 60.63581752858954, "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": 5690.0, "change_1d_pct": 4.117108874656905, "distance_from_ma200_pct": 14.824491672580775, "distance_from_ma50_pct": 3.6901672199846303, "volatility_20d_pct": 69.89514307567694, "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": "TLX_CFD.DE", "name": "TALANX AG", "sector": "", "last_price": 105.8, "change_1d_pct": -1.41173181754648, "distance_from_ma200_pct": -5.0515620274453, "distance_from_ma50_pct": -2.840973999950769, "volatility_20d_pct": 37.924895211006124, "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": "SEM_CFD.PT", "name": "Semapa-Sociedade de Investimento e Gestao SGPS SA", "sector": "", "last_price": 23.9, "change_1d_pct": 4.139433551198257, "distance_from_ma200_pct": 31.34892043827673, "distance_from_ma50_pct": 11.563381070635014, "volatility_20d_pct": 132.63194886766468, "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": "MNDI_CFD.UK", "name": "MONDI PLC", "sector": "", "last_price": 875.4, "change_1d_pct": -2.3427041499330614, "distance_from_ma200_pct": -12.574544831361955, "distance_from_ma50_pct": -2.301113459277171, "volatility_20d_pct": 97.34197637108583, "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": 265.0, "change_1d_pct": 7.72357723577235, "distance_from_ma200_pct": -1.0410112189618959, "distance_from_ma50_pct": 3.1700858141521238, "volatility_20d_pct": 67.76567663345816, "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": "PSON_CFD.UK", "name": "PEARSON PLC", "sector": "", "last_price": 960.0, "change_1d_pct": 3.7837837837837895, "distance_from_ma200_pct": -9.857021968970525, "distance_from_ma50_pct": -0.9828687985880102, "volatility_20d_pct": 93.99465016573882, "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": "BLND_CFD.UK", "name": "BRITISH LAND CO PLC", "sector": "", "last_price": 412.2, "change_1d_pct": -1.1036468330134386, "distance_from_ma200_pct": 10.038592258830414, "distance_from_ma50_pct": 2.655801721389861, "volatility_20d_pct": 88.77968057978609, "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": "NVG_CFD.PT", "name": "", "sector": "", "last_price": 3.356, "change_1d_pct": 0.1791044776119355, "distance_from_ma200_pct": 3.7278349750725637, "distance_from_ma50_pct": 2.9056432522598596, "volatility_20d_pct": 52.099570570268426, "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": "KBX_CFD.DE", "name": "", "sector": "", "last_price": 109.0, "change_1d_pct": -4.049295774647888, "distance_from_ma200_pct": 21.884270437937438, "distance_from_ma50_pct": 7.164297024824173, "volatility_20d_pct": 48.48861409468244, "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": 3060.0, "change_1d_pct": -6.877662811929397, "distance_from_ma200_pct": 20.590448668980944, "distance_from_ma50_pct": 5.284743621327226, "volatility_20d_pct": 97.14510937756963, "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": "KWS_CFD.DE", "name": "KWS SAAT AG", "sector": "", "last_price": 64.42, "change_1d_pct": 0.6829939202600777, "distance_from_ma200_pct": -1.2463244263659967, "distance_from_ma50_pct": -7.841089540922175, "volatility_20d_pct": 50.800052249529216, "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": "", "sector": "", "last_price": 2904.0, "change_1d_pct": 16.814159292035402, "distance_from_ma200_pct": 32.70582912867817, "distance_from_ma50_pct": 14.464370599684507, "volatility_20d_pct": 76.61600707633436, "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": "KTN_CFD.DE", "name": "Kontron AG.", "sector": "", "last_price": 22.959, "change_1d_pct": -0.0913838120104482, "distance_from_ma200_pct": -5.965915665036492, "distance_from_ma50_pct": -1.7566471198381395, "volatility_20d_pct": 69.97115181548287, "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": "LSEG_CFD.UK", "name": "LONDON STOCK EXCHANGE GROUP", "sector": "", "last_price": 8722.0, "change_1d_pct": 11.59160696008188, "distance_from_ma200_pct": -7.064320983767114, "distance_from_ma50_pct": 4.301196215854053, "volatility_20d_pct": 108.30311237955601, "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": "SON_CFD.PT", "name": "", "sector": "", "last_price": 1.982, "change_1d_pct": -0.5020080321285092, "distance_from_ma200_pct": 37.00523965548228, "distance_from_ma50_pct": 11.303293050002239, "volatility_20d_pct": 36.564400336260185, "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": "TKA_CFD.DE", "name": "", "sector": "", "last_price": 10.176, "change_1d_pct": -2.947067238912726, "distance_from_ma200_pct": 1.745704728485653, "distance_from_ma50_pct": -3.5238080791226034, "volatility_20d_pct": 90.60182893779454, "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": 2.56, "change_1d_pct": -2.6615969581748944, "distance_from_ma200_pct": -36.2629154736711, "distance_from_ma50_pct": -14.712153518123671, "volatility_20d_pct": 143.05101183306888, "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": "XFAB_CFD.FR", "name": "", "sector": "", "last_price": 4.578, "change_1d_pct": -4.025157232704391, "distance_from_ma200_pct": -21.9185722253207, "distance_from_ma50_pct": -8.17701898236548, "volatility_20d_pct": 98.56420312270438, "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": 31.26, "change_1d_pct": 23.851030110935035, "distance_from_ma200_pct": 12.691085471826336, "distance_from_ma50_pct": 32.023515896881435, "volatility_20d_pct": 210.87769115491298, "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": "INH_CFD.DE", "name": "", "sector": "", "last_price": 30.1, "change_1d_pct": -0.8629207562084074, "distance_from_ma200_pct": 21.020325986943877, "distance_from_ma50_pct": -0.9017610514290175, "volatility_20d_pct": 48.59593981670927, "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": "HLMA_CFD.UK", "name": "", "sector": "", "last_price": 4094.0, "change_1d_pct": 15.129358830146234, "distance_from_ma200_pct": 23.539538747901734, "distance_from_ma50_pct": 12.05386468141012, "volatility_20d_pct": 82.52949509931263, "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": "FUTR_CFD.UK", "name": "FUTURE PLC", "sector": "", "last_price": 423.6, "change_1d_pct": -20.82242990654205, "distance_from_ma200_pct": -37.68377383888033, "distance_from_ma50_pct": -24.301477407850992, "volatility_20d_pct": 153.59085037557008, "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": "SZG_CFD.DE", "name": "Salzgitter AG", "sector": "", "last_price": 53.504, "change_1d_pct": -1.0101757631822417, "distance_from_ma200_pct": 70.62081402366348, "distance_from_ma50_pct": 10.998484309721945, "volatility_20d_pct": 99.2257130844724, "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": "EZJ_CFD.UK",
"selection_reason": "distance_from_ma50_pct below -5%",
"mean_reversion_score": 68
},
{
"symbol": "BRBY_CFD.UK",
"selection_reason": "distance_from_ma50_pct below -5%",
"mean_reversion_score": 65
},
{
"symbol": "KRN_CFD.DE",
"selection_reason": "distance_from_ma50_pct below -5%",
"mean_reversion_score": 62
},
{
"symbol": "TCAP_CFD.UK",
"selection_reason": "positive distance_from_ma50_pct with low volatility",
"mean_reversion_score": 58
},
{
"symbol": "PSON_CFD.UK",
"selection_reason": "distance_from_ma50_pct near 0",
"mean_reversion_score": 55
}
],
"rejected_common_reasons": [
"Extreme 1-day movement >10%",
"distance_from_ma50_pct too extreme (>+20% or <-20%)",
"Insufficient volatility <50%"
]
}#722 • openrouter • amazon/nova-premier-v1 • 2026-03-02T12:00:53.976943+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": "ADP_CFD.FR", "qty": 25.53191489361702, "avg_price": 117.5, "last_price": 114.9, "unrealized_pnl": -66.38297872340411, "opened_at": "2026-02-25T10:57:06.928276+00:00"}, {"symbol": "AKAM_CFD.US", "qty": 30.783438510081577, "avg_price": 97.455, "last_price": 98.34, "unrealized_pnl": 27.243343081422353, "opened_at": "2026-02-23T18:14:12.978497+00:00"}, {"symbol": "BIG_CFD.FR", "qty": 0.0, "avg_price": 0.453, "last_price": 0.453, "unrealized_pnl": 0.0, "opened_at": "2026-02-21T17:32:49.140800+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": "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": 96.44, "unrealized_pnl": 58.3509513742073, "opened_at": "2026-02-27T18:23:55.960577+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": 37.2, "unrealized_pnl": -8.28351607109303, "opened_at": "2026-02-24T18:14:37.115518+00:00"}, {"symbol": "EZJ_CFD.UK", "qty": 0.0, "avg_price": 474.05, "last_price": 463.8, "unrealized_pnl": 0.0, "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": 205.8, "unrealized_pnl": 0.0, "opened_at": "2026-02-22T09:32:59.506254+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": "UKW_CFD.UK", "qty": 64.97022198159178, "avg_price": 92.35, "last_price": 92.35, "unrealized_pnl": 0.0, "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": "WIZZ_CFD.UK", "qty": 2.3094688221709005, "avg_price": 1299.0, "last_price": 1299.0, "unrealized_pnl": 0.0, "opened_at": "2026-02-25T17:57:28.313088+00:00"}, {"symbol": "WPP_CFD.UK", "qty": 11.389521640091116, "avg_price": 263.4, "last_price": 273.0, "unrealized_pnl": 109.33940774487498, "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": "EZJ_CFD.UK", "mean_reversion_score": 68, "selection_reason": "distance_from_ma50_pct below -5%"}, {"symbol": "BRBY_CFD.UK", "mean_reversion_score": 65, "selection_reason": "distance_from_ma50_pct below -5%"}, {"symbol": "KRN_CFD.DE", "mean_reversion_score": 62, "selection_reason": "distance_from_ma50_pct below -5%"}, {"symbol": "TCAP_CFD.UK", "mean_reversion_score": 58, "selection_reason": "positive distance_from_ma50_pct with low volatility"}, {"symbol": "PSON_CFD.UK", "mean_reversion_score": 55, "selection_reason": "distance_from_ma50_pct near 0"}], "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-ranked mean-reversion candidate with 68 score",
"symbol": "EZJ_CFD.UK",
"position_size": 3000
},
{
"reason": "Second-best candidate with 65 score",
"symbol": "BRBY_CFD.UK",
"position_size": 3000
}
],
"hold": [
{
"reason": "Marginal gain not justifying trade",
"symbol": "AKAM_CFD.US"
},
{
"reason": "No movement detected",
"symbol": "BYIT_CFD.UK"
},
{
"reason": "Recent gain but not overtrading",
"symbol": "CABO_CFD.US"
},
{
"reason": "Minor loss not requiring action",
"symbol": "EXE_CFD.FR"
},
{
"reason": "Strong gain but holding to avoid churn",
"symbol": "FUTR_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "HMSO_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "OCDO_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "PAGE_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "UKW_CFD.UK"
},
{
"reason": "No movement detected",
"symbol": "WIZZ_CFD.UK"
},
{
"reason": "Positive gain but holding",
"symbol": "WPP_CFD.UK"
}
],
"sell": [
{
"reason": "Underperforming position with -2.2% return",
"symbol": "ADP_CFD.FR"
}
]
},
"portfolio_rationale": "Maintained core holdings while pruning underperforming ADP_CFD.FR. Added two EU-focused mean-reversion candidates with strong statistical signals per strategy rules."
}Selection logs
#359 • stage1 • 2026-03-02T12:00:53.974611+00:00
{
"selected_stocks": [
{
"symbol": "EZJ_CFD.UK",
"selection_reason": "distance_from_ma50_pct below -5%",
"mean_reversion_score": 68
},
{
"symbol": "BRBY_CFD.UK",
"selection_reason": "distance_from_ma50_pct below -5%",
"mean_reversion_score": 65
},
{
"symbol": "KRN_CFD.DE",
"selection_reason": "distance_from_ma50_pct below -5%",
"mean_reversion_score": 62
},
{
"symbol": "TCAP_CFD.UK",
"selection_reason": "positive distance_from_ma50_pct with low volatility",
"mean_reversion_score": 58
},
{
"symbol": "PSON_CFD.UK",
"selection_reason": "distance_from_ma50_pct near 0",
"mean_reversion_score": 55
}
],
"rejected_common_reasons": [
"Extreme 1-day movement >10%",
"distance_from_ma50_pct too extreme (>+20% or <-20%)",
"Insufficient volatility <50%"
]
}