成分合成ポートフォリオ(東証グロース)のバックテスト
Best Component Portfolio (JP Growth Stocks)
slug: portfolio-best-components-jp-growth
東証グロース(約495銘柄)で成分合成ポートフォリオをバックテストした。3通りの中央値 Sharpe は +1.43。p-value は 0.13。Max DD は -6.5%。期間は 2024-07-01〜2025-06-30。最良 Sharpe +1.63 は代表値ではない。
判定は rejected。中央値は promising(Sharpe > 0.5 かつ p-value < 0.05)にも marginal(Sharpe > 0.05 かつ最良 p-value < 0.10)にも届いていない。主因は no_edge。レジーム・取引回数・コストには分類されず、中央値が採用ラインに届いていない。
成績の中央値
Sharpe(中央値)
+1.43
Max DD
-6.5%
勝率
—
Alpha(年率)
—
p-value
0.13
期間: 2024-07-01 → 2025-06-30
3通りの Sharpe:中央値 1.43最良 1.63 (代表値ではない)最悪 0.00p25–p75 0.72–1.53
仮説
原文は英語。
A multi-strategy portfolio composed of Phase 2c/2d best variants (ml-factor best version + FLAT-only reversal + fx-carry + pair-trading) achieves higher regime stability than any single component. Phase 2b showed regime-conditional weighting improved UP-regime Sharpe from -1.11 to 0.36.
採用しなかった理由
Across 3 grid combinations, median Sharpe=1.43, best=1.63. Primary failure mode: no_edge.
検証ファクト (5)
Best grid Sharpe ratio is 1.63 (p=0.11).
period 2024-07-01–2025-06-30; cost=5.0bps
cite ↗ /cite/portfolio-best-components-jp-growth-fact-best-sharpevia r-portfolio-best-components-jp-growth-0007
Median Sharpe across 3 grid runs is 1.43.
Full grid of 3 parameter combinations.
Median Sharpe in DOWN regime is 2.65 across 3 runs.
Regime=DOWN, N225 SMA20/SMA60 classification.
Median Sharpe in FLAT regime is 1.61 across 3 runs.
Regime=FLAT, N225 SMA20/SMA60 classification.
Median Sharpe in UP regime is 0.53 across 3 runs.
Regime=UP, N225 SMA20/SMA60 classification.
検証ラン (3)
| run | params | sharpe | UP | FLAT | DOWN |
|---|---|---|---|---|---|
method=equal_weight r-portfolio-best-components-jp-growth-0001 | method: "equal_weight" | +1.43 | +0.49 | +1.71 | +2.44 |
method=risk_parity r-portfolio-best-components-jp-growth-0004 | method: "risk_parity" | 0.00 | — | — | — |
method=regime_conditional r-portfolio-best-components-jp-growth-0007 | method: "regime_conditional" | +1.63 | +0.57 | +1.52 | +2.85 |
対象ユニバース
Tokyo Stock Exchange Growth Market, ~495 stocks, tv >= 30M JPY
source: qbuntu-analysis · kabu STATION REST API + J-Quants daily bars
computed asof: 2026-09-24T02:22:16