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スミダコーポレーション (6817.T) quant model fit

6817.T·電機・精密·jp-listed
computed asof 2026-10-01T02:33:09

Median hit rate and return when a model selected スミダコーポレーション (6817.T). Model: ml-factor-lgbm-9f-jp-growth. Model–stock fit, not a buy signal.

Median LONG hit rate is 0.75 (n=12). above a coin flip.Median LONG return is +77.3 bps.Above a coin flip is still not a buy signal.

read this first — not a buy signal

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.

Decomposes ml-factor-lgbm-9f-jp-growth — strategy verdict: marginal. 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.

Accuracy (median across grid)

metricmedianp25 – p75n
Hit rate · LONG0.74690.6506 – 0.788912
Hit rate · SHORT0.22840.1114 – 0.892912
Avg return · LONG (bps)77.350.9 – 121.712
Avg return · SHORT (bps)-25.9-185.1 – 116.412
Selection rate · LONG0.00090.0007 – 0.001612
Selection rate · SHORT0.00020.0001 – 0.000512

Hit rate ≈ 0.5 means the model's picks on this stock were near coin-flip. Returns in bps per trade (1 bps = 0.01%). Metrics with n = 0 are omitted.

PnL contribution

long
11.5
short
-5.3849
total
6.0902

Selected LONG 1076 / SHORT 286 times out of 871,680 appearances (0.123% LONG).

sum of per-trade decimal returns across all grid combos and retrain periods (0.01 = one trade returning 1%)

/ai/stocks/6817.T.md/v1/stocks/6817.T
Research, not investment advice. Metrics describe model–stock fit, not the stock's merit.