The thesis
The news-sentiment strategy runs on a simple, intuitive premise: buy names showing positive recent news sentiment and exit when the tone turns negative. It operates over a 24-name large-cap universe spanning tech, financials, healthcare, staples, and energy — AAPL, MSFT, GOOGL, NVDA, JPM, V, JNJ, XOM, and peers. The status is live, running as a scheduled paper-trading agent.
Recent activity
Live behaviour has been quiet to the point of dormancy. Over the past week the daily scheduled runs mostly executed nothing — the 12th through 17th all logged 0 trades, and the two most recent sessions saw orders rejected rather than filled (2 rejected on the 19th, 1 on the 18th). Account value has drifted between roughly $10,287 and $10,403, with cash pinned at $990.06 — meaning most of the book is already deployed and idle.
The last actual fills date back to late spring: five executed buys between 31 May and 1 July (AAPL, MSFT, BAC, UNH, GOOGL). Notably, no sells appear in the recent record, even though the thesis calls for exiting on negative sentiment. Either the tape has stayed benign or the exit signal simply hasn't triggered.
Backtest and validation
Here is where a balanced read matters. The headline backtest looks tidy but thin: a 0.19% total return over 451 days (CAGR ~0.1%), a Sharpe of 0.74, and a remarkably shallow 0.05% max drawdown. Turnover was 36.5% on just 2 trades — and win rate reads as 0, consistent with positions that are still open rather than realised losers.
That tiny trade count is the whole story. Walk-forward validation failed: only 1 of 4 folds was positive, and folds 1–3 placed zero trades at all. The single fold that fired (Dec 2025–May 2026) produced the entire 0.19% return at an out-of-sample Sharpe of 1.5. A probabilistic Sharpe ratio of 0.923 sounds encouraging, but after deflating for 6 trials the deflated Sharpe drops to 0.551 — a far more sober figure.
The verdict
Strengths: genuinely low drawdown, a clean OOS fold, and a thesis that maps to a real, exploitable market phenomenon. Risks: the signal is dangerously sparse. Two trades cannot distinguish edge from luck, three empty folds suggest the sentiment threshold rarely clears, and recent rejected orders hint at friction between signal and execution. Until this strategy trades often enough to be measured, treat every performance number as provisional. It hasn't earned trust — it simply hasn't had the chance to fail yet.