{"schema_version":"v1","type":"per_stock_model_accuracy","ticker":"4026.T","universe":"jp-listed","name":"神島化学工業","sector":"建設・資材","computed_asof":"2026-10-01T02:33:09","frame":"Model predictability decomposition: measures how accurately the ml-factor-lgbm-9f-jp-growth model family predicts this stock's returns within the jp-listed universe. High hit_rate_long does NOT mean 'good stock to buy' -- it means 'the model historically predicted this stock well when selecting it LONG'. This is a property of model-stock fit, not intrinsic stock quality.","source_strategy":{"note":"Standalone walk-forward run of the same LightGBM 9-factor family on the jp-listed universe (~4,100 tickers); the referenced record's verdict applies to the jp-growth universe only.","slug":"ml-factor-lgbm-9f-jp-growth","verdict":"marginal","relation":"model_family"},"source_strategy_exists":true,"units":{"pnl_cumul_*":"sum of per-trade decimal returns across all grid combos and retrain periods (0.01 = one trade returning 1%)","hit_rate_long":"ratio [0, 1] -- fraction of LONG selections with positive net return","hit_rate_short":"ratio [0, 1] -- fraction of SHORT selections with positive net return","avg_return_long_bps":"basis points per trade (1 bps = 0.01%) -- average net return when selected LONG","selection_rate_long":"ratio [0, 1] -- fraction of appearances where selected LONG","avg_return_short_bps":"basis points per trade (1 bps = 0.01%) -- average net return when selected SHORT","selection_rate_short":"ratio [0, 1] -- fraction of appearances where selected SHORT"},"accuracy_summary":{"hit_rate_long":{"n":12,"p25":0.262,"p75":0.7302,"median":0.5063},"hit_rate_short":{"n":12,"p25":0.3893,"p75":1,"median":0.625},"avg_return_long_bps":{"n":12,"p25":-145.7857,"p75":174.5673,"median":79.9149},"selection_rate_long":{"n":12,"p25":0.0005,"p75":0.0012,"median":0.0007},"avg_return_short_bps":{"n":12,"p25":22.2879,"p75":372.4369,"median":213.6582},"selection_rate_short":{"n":12,"p25":0.0002,"p75":0.0004,"median":0.0002}},"selection_counts":{"n_long_total":677,"n_short_total":233,"n_appearances_total":859392},"pnl_contribution":{"long":1.9303,"short":5.7971,"total":7.7274},"_links":{"self":"https://qbuntu.ai/v1/stocks/4026.T","html":"https://qbuntu.ai/stocks/4026.T","markdown":"https://qbuntu.ai/ai/stocks/4026.T.md"},"license":"CC-BY-4.0"}