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

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call skew

Jul 05 2026

Passing the Baton: From Semis to Software?

The AI trade has been the story of the first half of 2026, and semiconductors have been the main characters. The sector now accounts for roughly 20% of the entire S&P 500 — a historically high concentration. As we covered in our previous newsletter, any meaningful profit-taking in this area brings up the important question […]

Written by Sherry An · Categorized: Market Analysis, SpotGamma Weekly · Tagged: call skew, call spread strategy, earnings volatility, implied volatility, IV Rank, market makers, market volatility, options positioning, options trading, sector rotation, ServiceNow options, software stocks, SpotGamma Compass, spotgamma weekly, Volatility Skew

May 31 2026

June Catalysts Threaten a Volatility Spasm — How Are Traders Positioning?

The S&P 500 has posted fresh record highs for the ninth straight week. Tech and semiconductor earnings fueled much of the recent surge, with SNOW climbing 52%, DELL gaining 57%, and MU surging 28% within one week. As we move into June, stretched positioning now meets a cluster of major catalysts. Three upcoming events will […]

Written by Sherry An · Categorized: Market Analysis, SpotGamma Weekly · Tagged: call skew, COR1M, dealer gamma, dealer hedging, dispersion risk, Gamma Exposure, implied volatility, June OPEX, market makers, positive gamma, put diagonal, spotgamma weekly, SPX options positioning, SPX term structure, volatility spasm

May 25 2026

Record Highs and Thinning Hedges

Last week, the S&P 500 closed its eighth straight weekly gain — the longest streak since 2023. As the rally continues to achieve record highs, underlying options positioning has evolved meaningfully since March. Most importantly, the market has quietly shed much of the protective hedging that was in place just two months ago. A dense […]

Written by Sherry An · Categorized: Market Analysis, SpotGamma Weekly · Tagged: call options, call skew, dealer gamma, dealer hedging, Gamma Exposure, implied volatility, market makers, risk reversal, spotgamma weekly, SPX options positioning, SPX term structure

Mar 01 2026

The Options Market Trapdoor

Over the past week, the topic of volatility has returned to the forefront. While the market has been largely range-bound, underlying support remains tenuous. Simultaneously, traders have begun more actively paying for downside protection. Given the backdrop of flaring geopolitical conflict, we see assymetric downside risk forming as trader uncertainty and negative gamma threaten to unlock the […]

Written by Simon Scholten · Categorized: Market Analysis, SpotGamma Weekly · Tagged: call skew, Compass, dealer gamma, dealer positioning, iv, negative gamma, positive gamma, put skew, spotgamma weekly, SPX, Synthetic OI, volatility, Volatility Skew

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