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

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risk reversal

Sep 17 2026

Trump Xi Summit and the Market Outlook

Trump–Xi Summit: What Markets Are Watching on September 24

President Trump hosts Xi Jinping on September 24, days after the Fed’s first rate hike since 2023. Tariffs, rare earths, chip policy and Taiwan are all in play — and SpotGamma’s Compass shows cheap implied volatility across several China-sensitive names.

Written by SpotGamma · Categorized: Market Analysis · Tagged: china, gamma, implied volatility, retail stocks, risk reversal, tariffs, volatility

May 25 2026

Record Highs and Thinning Hedges

SPX implied volatility term structure chart showing economic events from May to July 2026, with peaks at PCE, NFP, CPI, and FOMC dates.

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 2020

Attack of Risk Reversal

Line chart of S&P 500 and small trader bullish options contracts from 2010 to 2020, with options at a record high.

@SentimentTrader posted this chart showing record “small” positions in long calls and short puts. Sentiment says these are “10 contracts or fewer per trade”, insinuating retail traders. This type of trade (long call/short put) is a position also known as a risk reversal. While the traders are not likely actually trading short puts and long […]

Written by SpotGamma · Categorized: Market Analysis · Tagged: open interest, retail, risk reversal, sentimenttrader

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All SpotGamma materials, information, and presentations are for educational purposes only and should not be considered specific investment advice nor recommendations. Futures, foreign currency and options trading contains substantial risk and is not for every investor. An investor could potentially lose all or more than the initial investment. Risk capital is money that can be lost without jeopardizing one's financial security or lifestyle. Only risk capital should be used for trading and only those with sufficient risk capital should consider trading. Past performance is not necessarily indicative of future results. Testimonials appearing on this website may not be representative of other clients or customers and is not a guarantee of future performance or success.

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