r/options • u/imusuallydrunkatnine • 2h ago
Anyone using AI to identify SPX pinning? Building a pin strength meter for 0DTE butterflies
I’ve been trading SPX 0DTE iron butterflies and have noticed some interesting pinning behaviour around 1:30–2:30 PM.
I’ve been working with ChatGPT to develop a tool that identifies potential pins using price concentration, gamma exposure, volatility, and how consistently SPX returns to certain levels. The goal is to create a “pin strength meter” that helps determine whether selling a 10-point-wide iron butterfly around 2 PM is worthwhile, ideally closing within 30–60 minutes to capture theta decay.
I’m curious whether anyone else has noticed similar pinning behaviour during this window and whether you’ve used AI, Python, or other tools to identify and measure it.
Has anyone developed a reliable way to distinguish a strong pin from temporary consolidation, or estimate how long a pin might hold?
Would love to compare experiences and ideas.
