The Backtest That Lied to You
AI can find a perfect strategy in historical data in minutes. That is exactly the problem. A look at overfitting and how to test honestly.
2 min readAI can find a perfect strategy in historical data in minutes. That is exactly the problem. A look at overfitting and how to test honestly.
2 min readMost AI trading strategies are trained on one kind of market and quietly deployed into another. Regime awareness is the missing layer that tells a model when to trust itself and when to sit down.
2 min readEvery trading agent dashboard shows win rate, Sharpe, drawdown. Almost none show abstention rate — the share of opportunities the agent looked at and declined. That omission is not an oversight. It is a design flaw.
2 min readAn AI trading agent can search a million variations of a strategy in an afternoon. That is exactly the problem. When the search is cheap, the beautiful equity curve stops being evidence and starts being an accident you paid for.
9 min readA new wave of AI trading tools skips the stock pick entirely and instead recommends the options structure — spread, collar, or straddle — that fits the volatility regime you’re actually in.
2 min readA new breed of AI agents isn’t picking your next trade — it’s reading your last twenty and calling out the pattern you keep pretending not to see.
2 min readAI agents are now parsing earnings call tone and language in real time, giving traders a sentiment edge before the transcript is even finalized.
2 min readAI agents are shifting from picking trades to watching the downside — and that quiet handoff matters more than the next alpha signal.
2 min readAn autonomous trading agent that can’t stop itself isn’t automated — it’s unsupervised. The circuit breaker is the least glamorous and most important line of code you’ll write.
2 min readLanguage models can turn a flood of headlines into a tradable mood score — but the edge lives in the plumbing, not the model.
2 min readAn AI trading model that nails the backtest can still lose money the moment it meets a real market. The gap is usually overfitting — and there are ways to catch it before your capital does.
2 min readMost AI trading setups obsess over better predictions. The setups that survive obsess over what happens when the prediction is wrong.
2 min readFrom procedurally generated worlds to fully AI-authored narratives, a new wave of games is blurring the line between tool and creator.
2 min read