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ネクセラファーマ (4565.T) quant model fit

4565.T·医薬品·jp-listed
computed asof 2026-10-01T02:33:09

Median hit rate and return when a model selected ネクセラファーマ (4565.T). Model: ml-factor-lgbm-9f-jp-growth. Model–stock fit, not a buy signal.

Median LONG hit rate is 0.70 (n=12). above a coin flip.Median LONG return is +188.2 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 · LONG0.69610.5497 – 0.743612
Hit rate · SHORT0.48780.4453 – 0.541912
Avg return · LONG (bps)188.2130.7 – 312.912
Avg return · SHORT (bps)50.5-54.3 – 82.712
Selection rate · LONG0.00120.0006 – 0.002012
Selection rate · SHORT0.00140.0010 – 0.002512

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
26.1
short
5.6856
total
31.7

Selected LONG 1317 / SHORT 1538 times out of 871,680 appearances (0.151% LONG).

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

/ai/stocks/4565.T.md/v1/stocks/4565.T
Research, not investment advice. Metrics describe model–stock fit, not the stock's merit.