# 日本鋳鉄管 (5612.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**: 日本鋳鉄管
- **Sector**: 鉄鋼・非鉄
- **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/5612.T
- **JSON**: https://qbuntu.ai/v1/stocks/5612.T
- **License**: CC-BY-4.0

## Accuracy (median across grid)

Median LONG hit rate is 0.1667 — below a coin flip.

| metric | median | p25 | p75 | n |
|---|---:|---:|---:|---:|
| hit_rate_long | 0.1667 | 0.0610 | 0.3261 | 12 |
| hit_rate_short | 0.9729 | 0.9030 | 0.9849 | 12 |
| avg_return_long_bps | -141.8 | -308.8 | 6.3341 | 12 |
| avg_return_short_bps | 516.3 | 352.4 | 560.6 | 12 |
| selection_rate_long | 0.0018 | 0.0009 | 0.0032 | 12 |
| selection_rate_short | 0.0105 | 0.0089 | 0.0133 | 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: -10.8
- short: 128.6
- total: 117.8
- appearances: LONG 638 / SHORT 2803 of 261120

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Research, not investment advice. These metrics describe model–stock fit, not the stock's merit.
Cite as: qbuntu (2026). 5612.T per-stock accuracy. https://qbuntu.ai/stocks/5612.T