The thesis
Channel-pullback is a disciplined mean-reversion play dressed in trend-following clothing. It buys pullbacks to the lower regression channel or volume support, but only inside confirmed uptrends, then exits at the upper channel or resistance. The universe is a defensive spread of 24 large-cap US names — mega-cap tech, financials, healthcare, and consumer staples. The design intent is sound: catch dips without fighting the primary trend.
Backtest performance
Over 451 days the strategy returned 7.62% (CAGR 4.19%), ending at $10,761.52 on a $10k base. That headline number is the most flattering thing about it. The Sharpe of 0.40 is thin, the max drawdown of 14.83% is nearly double the return, and the 39.39% win rate across 137 trades means the edge depends entirely on winners outrunning a majority of small losers. Turnover of 2,311% is aggressive — this book churns hard, and the $137 in fees is a direct tax on that activity.
Validation: it did not pass
This is where the story turns cautionary. The walk-forward validation failed. Across four folds, three were positive, but the failures are instructive:
- Fold 1 (Aug 2024–Jan 2025): +6.53%, Sharpe 1.25 — clean.
- Fold 2 (Jan–Jul 2025): −11.42%, Sharpe −1.70 — a genuine regime break.
- Fold 3 (Jul–Dec 2025): +20.68%, Sharpe 3.86 — the outlier carrying the whole record.
- Fold 4 (Dec 2025–May 2026): +3.63%, Sharpe 0.74 — tepid.
The out-of-sample return of 3.63% is roughly half the full-sample figure, and the Deflated Sharpe Ratio of 0.196 — after accounting for 7 trials — is the damning statistic. A PSR of 0.702 looks respectable in isolation, but the DSR tells us the in-sample Sharpe is largely a product of selection, not skill. Fold 3 flatters everything; strip it out and the strategy is barely breathing.
Live activity
On the live paper book, channel-pullback is quiet and slightly underwater at $9,518.99 total equity. Recent scheduled runs mostly execute zero or one trade — a short burst of BAC (bought 30 shares at $63.04 after selling 31 at $62.48) and a run of small AAPL round-trips near $308–315. There's a lot of in-and-out with little to show for it, consistent with the high-turnover, low-win-rate profile.
Verdict
The strengths are real: a coherent thesis, a defensive universe, and controlled per-fold drawdowns in three of four windows. But the risks dominate. A strategy whose returns hinge on a single outlier fold, whose OOS performance halves, and whose deflated Sharpe collapses toward zero has not earned promotion. Fold 2's −11.42% is a warning that the "confirmed uptrend" filter does not survive a genuine downturn. For now, channel-pullback belongs in observation, not capital allocation — and any live conviction should wait for it to clear the validation gate it currently fails.