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日本リーテック (1938.T) quant model fit

1938.T·建設・資材·jp-listed
computed asof 2026-10-01T02:33:09

Median hit rate and return when a model selected 日本リーテック (1938.T). Model: ml-factor-lgbm-9f-jp-growth. Model–stock fit, not a buy signal.

Median LONG hit rate is 0.49 (n=12). near a coin flip.Median LONG return is -72.4 bps.

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 · LONG0.49110.2055 – 0.666712
Hit rate · SHORT0.94120 – 15
Avg return · LONG (bps)-72.4-132.8 – 29.112
Avg return · SHORT (bps)79.3-61.9 – 104.35
Selection rate · LONG0.00020.0001 – 0.000612
Selection rate · SHORT00 – 0.000212

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
-1.6109
short
0.3099
total
-1.3009

Selected LONG 216 / SHORT 60 times out of 536,832 appearances (0.040% LONG).

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

/ai/stocks/1938.T.md/v1/stocks/1938.T
Research, not investment advice. Metrics describe model–stock fit, not the stock's merit.