Market-cap weighted indices can mask underlying weakness or strength in individual components. When a critical mass of individual stocks quietly make new session lows, the broader index tends to lag before catching up to the downside (and vice versa). Monitor real-time high/low breadth of SPY components to time short-term 0DTE directional trades. Extreme theta decay on 0DTE options, false signals in choppy markets, and the strategy is completely unbacktested.
SPY
HIGH
Mar 23, 20:13
Key Points
['Track equal-weight vs index divergence.', 'Component session lows often precede index drops.', 'Strategy requires extremely fast profit-taking.', 'Edge relies on catching the resolution of intraday chop.']
March 23, 2026 at 20:13