# Ｌｉｂｅｒａｗａｒｅ (218A.T) — per-stock model accuracy

> 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.

- **Name**: Ｌｉｂｅｒａｗａｒｅ
- **Sector**: 電機・精密
- **Universe**: jp-listed
- **Decomposes**: `ml-factor-lgbm-9f-jp-growth` (strategy verdict: marginal) — https://qbuntu.ai/strategies/ml-factor-lgbm-9f-jp-growth
- **Computed asof**: 2026-10-01T02:33:09
- **HTML**: https://qbuntu.ai/stocks/218A.T
- **JSON**: https://qbuntu.ai/v1/stocks/218A.T
- **License**: CC-BY-4.0

## Accuracy (median across grid)

Median LONG hit rate is 0.3735 — below a coin flip.

| metric | median | p25 | p75 | n |
|---|---:|---:|---:|---:|
| hit_rate_long | 0.3735 | 0.3563 | 0.4209 | 12 |
| hit_rate_short | 0.8036 | 0.7370 | 0.8294 | 12 |
| avg_return_long_bps | -20.0 | -60.8 | 28.8 | 12 |
| avg_return_short_bps | 295.8 | 165.5 | 341.2 | 12 |
| selection_rate_long | 0.0181 | 0.0163 | 0.0226 | 12 |
| selection_rate_short | 0.0217 | 0.0179 | 0.0268 | 12 |

Hit rate ≈ 0.5 means the model's picks on this stock were near coin-flip. Returns in bps/trade. Metrics with n = 0 are omitted; n < 5 is a thin sample.

## PnL contribution

- long: -15.9
- short: 182.8
- total: 166.9
- appearances: LONG 7073 / SHORT 8078 of 374208

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Research, not investment advice. These metrics describe model–stock fit, not the stock's merit.
Cite as: qbuntu (2026). 218A.T per-stock accuracy. https://qbuntu.ai/stocks/218A.T