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

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Apr 26 2026

How next week’s earnings could drive volatility

SPX implied volatility chart showing FIV at 22% and IV at 15% from late April through late July 2026.

Markets pushed to fresh all-time highs this week, driven by continued strength in AI stocks. One of the notable stores was SMH (the semiconductor ETF) which surged over 30% this month to cap 168% gain in the past year. While euphoric spirits have recently prevailed, next week brings an event-heavy calendar that might shift the […]

Written by Sherry An · Categorized: Market Analysis, SpotGamma Weekly · Tagged: call buying, call options, Convexity, dealer gamma, earnings, geopolitical risk, implied vol, iv, MSFT, rv, spotgamma weekly, SPX, volatility

Apr 19 2026

The Hidden Mechanics Behind Last Week’s Rally

Stacked area chart showing SPX call volume by expiration tenor from 2019 to 2026, with total volume reaching 2.43 million contracts.

The S&P 500 has bounced back to record highs, closing decisively above 7,100 after Friday’s 1.2% rally. That marks a 12% rise from March lows in just under three weeks. In that same timeframe, volatility expectations have seemingly collapsed: VIX is down 40% since March 31, dropping from >30 to below 18. Crude oil has […]

Written by Simon Scholten · Categorized: Market Analysis, SpotGamma Weekly · Tagged: call buying, call options, dealer gamma, dealer positioning, geopolitical risk, implied vol, iv, OPEX, rv, spotgamma weekly, SPX, volatility

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