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S&P 500 Stock Market Gamma Trading Levels Based on Options Open Interest

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Mar 15 2025

March OPEX Effect: Put Maxed

In this episode of the OPEX Effect we discuss how the stock market turned right at February VIX expiration resulting in a 10% SPX market crash into this weeks massive March OPEX.

Brent flags how put values are “maxed out” into OPEX, and why that dynamic combines with 5,500 – 5,565 as a major support zone into March 31st.

These options market flows led us to call for a short term market rally this week, with our Members receiving this note & chart on Thursday:

“That [options positioning] leaves us looking for a path that mirrors the one plotted below, wherein the SPX can stage a ~2% rally into the at 5,700 area before being pulled back down into the 5,550 area into expiration(s).”

Read Thursday’s Founder’s Note free, here.

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Written by SpotGamma · Categorized: Market Analysis · Tagged: OPEX, The OPEX Effect

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