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

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put skew

Jul 22 2026

Space Stocks: Oversold Bounce or Ready for Liftoff?

Last month, space stocks rocketed their way onto every trader’s radar. SpaceX’s record-breaking June IPO (SPCX) drew a wave of retail and institutional attention to the sector, while a string of NASA announcements made headline news and fueled several meaningful moves. Overall, the space sector has been defined by a notable downtrend in the past […]

Written by Sherry An · Categorized: Market Analysis, Stock · Tagged: dealer gamma, implied volatility, options market analysis, options positioning, put ratio spread, put skew, RKLB, Rocket Lab options, space stocks, SpaceX earnings, SpaceX IPO, SPCX

Apr 05 2026

How One Key Level Drove Last Week’s Rally

The S&P 500 bounced back 2% last week after scraping against 6-month lows. Mixed headlines on the Iran conflict explained much of this tug-of-war, yet markets are still holding their breath. For many traders, the rally felt counterintuitive: How can equities rally so furiously if geopolitical uncertainties remain unresolved? When looking at Tuesday’s major bounce in […]

Written by Simon Scholten · Categorized: Market Analysis, SpotGamma Weekly · Tagged: dealer gamma, dealer positioning, FOMC, geopolitical risk, implied vol, iv, JPM Collar, negative gamma, OPEX, put skew, realized vol, spotgamma weekly, SPX, trace, volatility

Mar 22 2026

After OPEX: Market Loses Its Shock Absorber

The options market has just cleared one of the largest structural events of the quarter, as Friday’s OPEX saw nearly $1.4 trillion in delta notional expire for the S&P 500. Because significant positions have now rolled off from the March expiration, the market has lost an important stabilizing force just as macro pressures begin to build. […]

Written by Simon Scholten · Categorized: Market Analysis, SpotGamma Weekly · Tagged: dealer gamma, dealer positioning, FOMC, geopolitical risk, implied vol, iv, negative gamma, OPEX, put skew, realized vol, spotgamma weekly, SPX, trace, VIX, volatility, Volatility Skew

Mar 15 2026

March OPEX: Tipping Point or Turning Point?

Fragility, Risk, and Potential Vol Reset As the S&P 500 enters OPEX week, we echo the same theme of the past few weeks: this market remains fragile. Last week’s selloff pushed the index below the three-month trading range of SPX 6,800-7,000 that had held since late 2025, subsequently closing down 5% since mid-January. The conflict with Iran continues […]

Written by Simon Scholten · Categorized: Market Analysis, SpotGamma Weekly · Tagged: dealer gamma, dealer positioning, FOMC, geopolitical risk, implied vol, iv, negative gamma, put skew, realized vol, spotgamma weekly, SPX, trace, VIX, volatility, Volatility Skew

Mar 08 2026

Geopolitical Risk Hits a Fragile Market

Markets entered last week on fragile footing. In our previous Sunday note, we emphasized how negative dealer gamma, extreme put skew, and heavy 0DTE options activity set the market up for a trapdoor scenario. This created a market structure vulnerable to sharp drops and spikes in volatility, as we saw play out last week. The dramatic […]

Written by Simon Scholten · Categorized: Market Analysis, SpotGamma Weekly · Tagged: Compass, dealer gamma, dealer positioning, forward implied volatility, forward-vol, geopolitical risk, iv, negative gamma, put skew, risk management, spotgamma weekly, SPX, Synthetic OI, trace, volatility, Volatility Skew

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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