Thesis
Channel-pullback scans 24 liquid large-caps — spanning tech, financials, healthcare, consumer staples, and energy — for price dips to the lower bound of a linear regression channel while volume confirms support in an established uptrend. Entries target the pullback; exits target the upper channel or defined resistance. The logic is sound: strong names retrace, institutional buyers defend technical support, and the trend resumes.
Backtest Snapshot
Over 451 trading days the strategy turned $10,000 into $10,761.52 — a 7.62% total return, or roughly 4.2% annualized. The underlying metrics tell a more cautious story.
| Metric | Value |
|---|---|
| Sharpe ratio | 0.40 |
| Max drawdown | 14.83% |
| Win rate | 39.4% |
| Trades | 137 |
| Annualised turnover | 2,312% |
A Sharpe of 0.40 sits well below common institutional thresholds. A sub-40% win rate means the strategy depends on a small cohort of outsized winners to stay net-positive — a precarious structure when those winners fail to materialise. High turnover also generates meaningful friction; $137 in fees across 137 trades is small in simulation but would scale materially with real capital.
Walk-Forward Validation
Four sequential folds expose sharp regime sensitivity:
| Fold | Period | Return | Sharpe | Max DD |
|---|---|---|---|---|
| 1 | Aug 2024 – Jan 2025 | +6.53% | 1.25 | 6.16% |
| 2 | Jan 2025 – Jul 2025 | −11.42% | −1.70 | 16.09% |
| 3 | Jul 2025 – Dec 2025 | +20.68% | 3.86 | 3.26% |
| 4 (OOS) | Dec 2025 – May 2026 | +3.63% | 0.74 | 8.44% |
Three of four folds are positive, and Fold 3 is exceptional — nearly 21% with a 3.26% drawdown and a Sharpe above 3.8. Fold 2, however, exposes the strategy's core vulnerability: in a downtrending or choppy environment, the channel signals keep firing but price does not recover, and losses compound to −11.42% with a 16% drawdown.
The out-of-sample fold (Fold 4, +3.63%, Sharpe 0.74) is encouraging but not definitive. Formal significance metrics reinforce the scepticism: the Probabilistic Sharpe Ratio (PSR) of 0.702 offers only moderate confidence that the true edge is positive, and after correcting for seven development trials the Deflated Sharpe Ratio (DSR) falls to 0.196 — well below a meaningful significance bar. Validation status: not passed.
Recent Activity
Late-June execution was sparse. Of six scheduled daily runs (June 23–30), only one produced a fill: a 7-share AAPL buy on June 25 at $279.39. The portfolio closed June 30 at approximately $10,121. One signal per week is consistent with a design built to wait for genuine setups rather than force entries — a discipline worth noting.
Earlier in June the strategy was more active. CAT was bought at $857.78 and exited at $912.06, a clean gain. DIS was bought at $99.29 and sold at $103.99. NVDA was added at $204.82 and remains open. A MSFT round-trip (in at $427.54, out at $400.31) illustrates the win-rate reality in practice.
Outlook
Channel-pullback has demonstrated a genuine edge in trending markets — Fold 3 is compelling evidence. The risk is regime change: when the market stops trending cleanly, the edge evaporates and losses can be swift. Adding a market-breadth or volatility filter to pause entries in uncertain conditions is the most direct path to improving robustness. Until the DSR clears a more meaningful bar with additional out-of-sample data, this strategy earns continued paper-trading observation rather than a live capital allocation.