The thesis
SilentDip is built on a tidy, testable idea: a sharp price drop without a negative headline is more likely to be noise than signal, and noise reverts. The same drop carrying genuine bad news tends to keep drifting lower. So the strategy demands two things at once — oversold technicals and the absence of salient negative sentiment — before buying, then exits as the name mean-reverts toward its SMA20 or as RSI normalizes.
The lineage is reputable. It extends Chan's 2003 work on price reactions to news versus no-news, drawing on a November 2025 SSRN working paper (Clinch, He, Landsman & Li) on temporal changes in delayed price reactions. The universe is deliberately boring in a good way: 24 mega-cap, high-liquidity names (AAPL, MSFT, JPM, JNJ, XOM and peers), where the no-news signal is cleanest and slippage least punishing.
Backtest record
Over 1,279 days the strategy returned 52.62% (final equity $15,262 on a $10k base), an 8.69% CAGR with a Sharpe of 1.03 and a contained 10.38% max drawdown. The headline number is the 70.55% win rate across 294 trades — consistent with a mean-reversion engine that wins often and small. Turnover ran hot at ~4,192%, so this is an active, many-small-bets approach, not buy-and-hold.
Walk-forward validation
This is where SilentDip earns trust. All 4 of 4 folds were positive, and performance strengthened over time: folds 1–2 (2021–2024) were barely-there grinds (4.96% and 1.91%, Sharpe ~0.36), while folds 3–4 (2024–2026) delivered 26.26% and 16.75% at Sharpe 1.84 and 1.91. Out-of-sample return was 16.75% at a 1.91 Sharpe. The paper reports PSR 0.991 and, honestly, a DSR of 0.563 across 42 trials — the deflated figure deflates the right things, and staying above 0.5 after 42 attempts is a genuine (if modest) pass rather than a data-mined fluke.
Recent activity
Live, it's quiet. The only recent position is a CAT buy — 2 shares at $622.54 on 30 Oct. Every scheduled run since (Nov 5–12) logged 0 executed, 0 rejected, with ~$8,740 of a ~$9,950 account parked in cash. Account total has drifted in the $9,859–$9,954 band — essentially flat to marginally underwater.
Strengths and risks
Strengths: a coherent, literature-grounded edge; high win rate; clean, improving walk-forward folds; low drawdown; liquid universe.
Risks: the edge is thin (single-digit CAGR, full-sample Sharpe barely above 1), the early folds were near-dead, and a DSR of 0.56 leaves little margin. More pressing, selectivity cuts both ways — with 88% of capital idle and no fills for over a week, SilentDip only pays off when its specific setup appears. Right now it isn't, and the strategy is waiting.