# ＢＢＤイニシアティブ (5259.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-growth 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**: ＢＢＤイニシアティブ
- **Universe**: jp-growth
- **Decomposes**: `ml-factor-lgbm-9f-jp-growth` (strategy verdict: marginal) — https://qbuntu.ai/strategies/ml-factor-lgbm-9f-jp-growth
- **Computed asof**: 2026-09-23T23:40:19
- **HTML**: https://qbuntu.ai/stocks/5259.T
- **JSON**: https://qbuntu.ai/v1/stocks/5259.T
- **License**: CC-BY-4.0

## Accuracy (median across grid)

Median LONG hit rate is 0.4343 — below a coin flip.

| metric | median | p25 | p75 | n |
|---|---:|---:|---:|---:|
| hit_rate_long | 0.4343 | 0.3787 | 0.4739 | 12 |
| hit_rate_short | 0.5562 | 0.4778 | 0.5618 | 12 |
| avg_return_long_bps | -23.2 | -67.0 | 18.3 | 12 |
| avg_return_short_bps | 77.8 | 66.9 | 102.5 | 12 |
| selection_rate_long | 0.0267 | 0.0107 | 0.0293 | 12 |
| selection_rate_short | 0.0263 | 0.0235 | 0.0301 | 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: -6.6294
- short: 43.6
- total: 36.9
- appearances: LONG 4202 / SHORT 5140 of 188160

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Research, not investment advice. These metrics describe model–stock fit, not the stock's merit.
Cite as: qbuntu (2026). 5259.T per-stock accuracy. https://qbuntu.ai/stocks/5259.T