Thesis
News-sentiment takes a straightforward approach: scan recent headlines across a 24-ticker universe of large-cap US equities — spanning tech, financials, healthcare, consumer staples, energy, and industrials — and enter long positions when aggregate sentiment turns positive, exiting when it sours. The appeal is intuitive: public companies move on narrative as much as fundamentals, and systematic sentiment parsing can react faster than most discretionary traders.
Recent Activity
Live trading has been sparse. Over the past week (June 9–16), the strategy executed zero trades on five of six scheduled runs. The one exception was June 12, when it picked up 35 shares of BAC at $55.93 — a modest position representing roughly $1,957 of notional exposure. Prior to that, the strategy bought 4 shares of MSFT at $428.23 on June 3 and 6 shares of AAPL at $312.06 on May 31.
As of June 16, the portfolio holds $4,437.59 in cash against a total portfolio value of $9,790.72 — meaning nearly half the capital sits idle. The low churn is consistent with the backtest's 36.5% annual turnover figure, but in practice it translates to days-long stretches of no activity.
Backtest & Validation Performance
Over 451 days, the backtest produced a +0.19% total return (≈+0.10% annualised) on only two executed trades, with a max drawdown of just 0.05% and total fees of $2. The Sharpe ratio sits at 0.74 — below the 1.0 threshold typically considered investment-grade.
The walk-forward validation tells a more cautious story. Across four folds spanning August 2024 to May 2026, only fold 4 (Dec 2025 – May 2026) generated any trades at all. Folds 1 through 3 recorded zero trades, zero return, and zero drawdown — not because the market was flat, but because the strategy found no actionable signals. The result: 1 of 4 folds positive, a validation the system itself has flagged as failed.
The out-of-sample Sharpe of 1.5 looks encouraging in isolation, but it derives entirely from those two trades. With a Deflated Sharpe Ratio (DSR) of 0.551 across six trials, the statistical evidence that this Sharpe is real rather than luck is weak. The Probabilistic Sharpe Ratio (PSR) of 0.923 is more favourable, but context matters: near-zero activity over 18 months is not a representative sample.
Strengths
- Capital preservation: the strategy has not lost money, and the tiny max drawdown reflects disciplined entry criteria.
- Clean signal hygiene: fold 4's 1.5 OOS Sharpe on the trades it did make suggests the sentiment signal has some predictive value when it fires.
- Low cost: two trades, $2 in fees, no FX cost.
Risks & Concerns
- Signal sparsity: a strategy that sits in cash 90%+ of the time is not delivering on its mandate. Whether this reflects a conservative threshold, a data-feed limitation, or genuine scarcity of positive sentiment signals is unclear from the data alone.
- Small-sample problem: two backtest trades and three live trades cannot validate or invalidate any thesis. The strategy needs an order of magnitude more observations before conclusions are meaningful.
- Concentration in recency: all measurable performance is confined to the most recent fold. It is too early to know whether fold 4 represents genuine regime fit or a lucky window.
- Zero recorded win rate: no closed positions yet means the 0% win rate is an artefact, not a judgment — but it also means there is no realised P&L to assess.
Bottom Line
News-sentiment is live but barely breathing. The core idea is sound, and the handful of signals it has generated have not lost money. But with validation officially failed, fewer than five total trades across 18 months, and over 45% of capital in cash, the strategy is best treated as an early-stage signal probe rather than a deployed system. The immediate priority should be diagnosing why signal generation is so rare — whether the sentiment threshold needs tuning, the news data coverage needs broadening, or the universe needs expanding.