Algorithmic Trading

Trading 0DTE options is often painted as a high-stress “click-fest,” but today was a perfect example of why I’ve moved toward full automation. When you have a solid set of rules and a bot to enforce them, a “volatile” morning becomes just another data point. Today’s trade was a textbook Iron Condor on the SPX, entered right after the opening bell. The Strategy 🛠️ The goal here was simple: capture the high implied volatility (IV) at the open and bet that SPX would stay within a defined range for the morning session. ...

Zero days to expiration (0DTE) options have become one of the most actively traded instruments in the modern market. On a typical trading day, 0DTE SPX options account for more than 40–50% of all SPX options volume. The reason is simple: the theta decay is at its most powerful, the mechanics are well-defined, and for systematic sellers, the daily reset provides a clean, repeatable trading cycle. This guide covers everything you need to know to understand, evaluate, and trade 0DTE options — especially the iron condor approach on SPX. ...