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

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SpotGamma Weekly

Jun 14 2026

Triple Witching + FOMC Fuels Volatility Risk

The market delivered several volatile sessions last week as traders navigated Wednesday’s CPI inflation report, Friday’s massive SpaceX IPO (SPCX), and a mix of Iran-driven headlines throughout. Last Sunday, we wrote about how extreme options positioning into major catalysts could spark the exact volatile market behavior observed over the past several days. Tuesday’s wild 200-point […]

Written by Sherry An · Categorized: Market Analysis, SpotGamma Weekly · Tagged: dealer hedging, FOMC, Gamma Exposure, gold GLD outlook, implied volatility, Kevin Warsh Fed, market makers, negative gamma, OPEX, spotgamma weekly, SPX term structure, triple witching

Jun 07 2026

The AI Trade Unwinds

Wall Street’s historic weekly winning streak came to an abrupt halt last week. On Friday, a sharp NFP report drove the S&P 500 down over 2.6%, leading to a sharp AI selloff and rising bond yields. Adding fuel to the fire, the market now appears to be pricing in a rate hike by the end […]

Written by Sherry An · Categorized: Market Analysis, SpotGamma Weekly · Tagged: AI trade unwind, dealer gamma, dealer hedging, Gamma Exposure, HIRO options flow, implied volatility, market makers, positive gamma, semiconductor selloff, SMH dealer gamma, spotgamma weekly, SPX options positioning, SPX term structure, volatility spasm

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

May 17 2026

NVDA earnings vs. a stretched S&P 500

For the fourth consecutive week, the S&P 500 has struck records highs. This week’s breach of SPX 7,500 even arrived in the face of hotter-than-expected CPI and PPI prints — data that historically would have triggered a meaningful selloff. The tone shifted somewhat on Friday, as the rally lost steam into monthly OPEX. The week […]

Written by Sherry An · Categorized: Market Analysis, SpotGamma Weekly · Tagged: call options, dealer gamma, dealer hedging, Gamma Exposure, implied vol, market makers, May OPEX 2026, NVDA earnings, NVDA implied move, options market analysis, options volatility skew, semiconductor stocks, spotgamma weekly, SPY put butterfly, tail hedge options

May 10 2026

The AI Trade Roars — But for How Long?

Last week, strong earnings pushed both the S&P 500 and Nasdaq to — once again — achieve all-time highs. Through the fast and furious AI-driven rally of the past 6 weeks, SPX has climbed 15% while NDX has surged 28%. The market’s pace of advance is well beyond historical norms, reflecting an exceptionally aggressive repositioning […]

Written by Sherry An · Categorized: Market Analysis, SpotGamma Weekly · Tagged: 0DTE options, call options, dealer gamma, dealer hedging, earnings, Gamma Exposure, implied vol, market makers, May OPEX 2026, options market analysis, semiconductor stocks, spotgamma weekly, SPX options, VIX expiration, volatility

May 03 2026

Quiet Indices, Roaring Stocks: the Volatility Dispersion Trade

Robust Mag7 and semiconductor earnings have reinforced investor confidence in the AI trade, lifting the S&P 500 and Nasdaq to fresh highs. Index implied volatility (IV) — the options market’s expectation of future price movement — reset to its lowest level in three months. Despite the backdrop of the Iran conflict and heightened oil prices, […]

Written by Sherry An · Categorized: Market Analysis, SpotGamma Weekly · Tagged: 0DTE options, call options, dealer gamma, implied vol, iron condor, options flow, semiconductor stocks, spotgamma weekly, SPX options, unusual options activity, volatility, volatility dispersion

Apr 26 2026

How next week’s earnings could drive volatility

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

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

Apr 12 2026

Vol Crush Lifts the S&P 500 — Will the Rally Last?

Following last week’s ceasefire announcement, the S&P 500 lifted 3% from roughly 6,550 to 6,800. On the surface, this rally looked like a meaningful shift toward risk-on sentiment as implied volatility collapsed rapidly across all expirations. Similarly, VIX plummeted below 20 for the first time in four weeks, marking one of its largest single-day declines ever. Yet […]

Written by Simon Scholten · Categorized: Market Analysis, SpotGamma Weekly · Tagged: dealer gamma, dealer positioning, geopolitical risk, implied vol, iv, negative gamma, OPEX, spotgamma weekly, SPX, vanna, vol crush, volatility

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