Thesis in Brief
The news-sentiment strategy is straightforward: scan recent headlines across a 24-stock universe of large-cap U.S. equities, buy when aggregate sentiment turns positive, and exit on negative signal. The universe spans six sectors — technology, financials, healthcare, consumer staples, consumer discretionary, and energy — giving the model broad exposure to macro news cycles while staying within liquid, well-covered names.
Recent Activity
Scheduled runs have fired daily at 19:00 UTC, but signal has been scarce. Of the six most recent sessions (June 25 – July 2), only one produced an executed trade: a five-share buy of GOOGL at $360.40 on July 1. The remaining five sessions passed with no action and cash sitting at roughly $990 against a total portfolio value of $9,935.
Zooming out to the past five weeks, the strategy has placed five buys in live paper trading:
| Date | Symbol | Shares | Price |
|---|---|---|---|
| 2026-07-01 | GOOGL | 5 | $360.40 |
| 2026-06-18 | UNH | 4 | $402.85 |
| 2026-06-12 | BAC | 35 | $55.93 |
| 2026-06-03 | MSFT | 4 | $428.23 |
| 2026-05-31 | AAPL | 6 | $312.06 |
The selection skews toward mega-cap tech and diversified financials — exactly the names with the heaviest news coverage, which makes intuitive sense for a sentiment-driven model.
Backtest & Validation
Over a 451-day backtest window the strategy returned +0.19% on a $10,000 paper account (final equity $10,018.55), with a CAGR of roughly 0.10%, a Sharpe of 0.74, and a maximum drawdown of just 0.05%. Total fees were negligible at $2. The win rate is recorded as zero, which most likely reflects the fact that no positions have yet been fully closed rather than a string of losses.
The walk-forward validation tells a more cautionary story. Across four folds spanning August 2024 to May 2026:
- Folds 1–3 (Aug 2024 – Dec 2025): zero trades in each fold, zero return.
- Fold 4 (Dec 2025 – May 2026): 2 trades, +0.19% return, out-of-sample Sharpe of 1.5.
Only one fold was positive, which is why the strategy's validation gate is currently uncleared. The Probabilistic Sharpe Ratio (PSR) of 0.923 is respectable, but the Deflated Sharpe Ratio (DSR) of 0.551 — which penalises for the number of trials tested (6) and the skewed fold distribution — falls well short of the 1.0 threshold needed for statistical confidence. In plain terms: a single active fold with two trades is not enough evidence to rule out luck.
Strengths
- Capital preservation: the near-zero drawdown (0.05%) is genuinely impressive and reflects the model's willingness to sit in cash when conviction is absent.
- Out-of-sample Sharpe: the 1.5 OOS Sharpe in fold 4 is a promising directional signal if signal frequency improves.
- Low friction: two total trades in 451 days and $2 in fees leave almost nothing on the table to transaction costs.
Risks & Watch Points
- Signal sparsity: the model is functionally idle most of the time. If the news-scoring threshold is too conservative, the strategy may never generate enough trades to be statistically meaningful.
- Validation failure: three empty folds suggest the strategy's sentiment signal was either not present or not detectable across the majority of the backtest period. The live edge is concentrated in a narrow recent window.
- No closed-position record: with a win rate of zero and all positions apparently still open, there is no realized P&L data to assess whether entries are translating into actual gains.
Outlook
News-sentiment is operating conservatively and cleanly — it is not losing money. The question is whether it can generate enough signal to pass validation in the next fold cycle. The December 2025 activation aligns with a period of heightened market-moving headlines; it will be worth watching whether that environment continues to feed the model or whether signal dries up again heading into summer.