Thesis
The news-sentiment strategy is straightforward: scan recent headlines across a 24-stock universe of large-cap U.S. equities — tech, financials, healthcare, consumer, energy, and industrials — and go long when aggregate sentiment turns positive, exit when it turns negative. No leverage, no shorts. The signal is purely textual; price momentum and fundamentals play no role.
Recent Activity
The strategy has been running on a daily schedule, logging six consecutive runs between June 11 and June 18. Activity has been sparse: only two trades executed across that window.
- June 12 — Bought 35 shares of BAC at $55.93
- June 18 — Bought 4 shares of UNH at $402.85
Before that, MSFT (4 shares, $428.23) and AAPL (6 shares, $312.06) were added in late May and early June. The portfolio is accumulating a concentrated set of large-cap names, with cash sitting at $2,810 against a total account value of $9,688 as of June 18 — roughly 71% deployed.
The low trade frequency is by design: the strategy only acts when sentiment clears its threshold. Four idle sessions out of six suggest the signal is selective, not broken.
Backtest Performance
Over 451 simulated days, the backtest produced a +0.19% total return with a CAGR of 0.10%, a Sharpe of 0.74, and a maximum drawdown of just 5%. Only 2 trades were recorded, with $2 in total fees and zero FX cost (all symbols are USD-denominated). Turnover came in at 36.5% — moderate for a daily signal strategy.
The headline numbers are modest but not alarming for a strategy this early in its live run. The low drawdown is the most encouraging data point: the strategy has done little harm.
Validation: One Fold in Four
The walk-forward validation is where skepticism is warranted. Across four folds spanning August 2024 to May 2026, only the final fold (Dec 2025 – May 2026) generated any activity — 2 trades, +0.19% return, Sharpe of 1.5. The first three folds produced zero trades and zero returns.
The validation framework's own verdict: failed. The probabilistic Sharpe ratio (PSR) sits at 0.923, which is high enough to suggest the Sharpe isn't purely noise — but the deflated Sharpe ratio (DSR) of 0.551, discounted for 6 trials, is harder to get excited about. With only 1 of 4 folds positive, there is no statistical basis yet to call this edge persistent.
What this likely means: the sentiment signal went quiet for over a year — either the news feed yielded no strong buy signals, or the threshold was too conservative. The strategy only woke up in late 2025.
Strengths
- Shallow drawdown (5%) indicates the signal filters out most noise and sits in cash when uncertain
- High PSR (0.92) suggests the measured Sharpe, while modest, is unlikely to be pure luck
- Clean execution — no rejected orders, consistent daily scheduling
Risks
- Severely limited trade history — 2 backtest trades and 4 live trades is not enough to draw robust conclusions
- Fold concentration — nearly all performance originates in one fold; this is a classic overfitting warning sign
- Signal dormancy — three consecutive six-month periods with zero trades raises questions about threshold calibration or feed coverage
- Portfolio concentration — the live book holds only 4 symbols; a bad headline on any one of them could disproportionately hurt the account
Bottom Line
News-sentiment is a live, functioning strategy with a defensible thesis and a clean operational record. What it lacks is evidence. The validation gate correctly flagged it as unproven: one active fold out of four is not a track record — it's a starting point. The path forward is more data, more trades, and at least two additional folds showing consistent positive returns before this strategy earns higher confidence or increased capital allocation.