U.S. stock markets may experience increased volatility in the coming days, as experts point to the upcoming monthly options expiration, which is set for Friday. This expiration is particularly noteworthy, as the S&P 500 index hovers near a significant milestone of 7,000, potentially marking a new record high. Current market conditions reflect historically low volatility, with the ten-day volatility measure for the S&P 500 recently dropping to 8.1%, a stark contrast to the average of 17.0% observed over the past year.
Market analysts believe that the upcoming options expiration may contribute to greater price fluctuations. Brent Kochuba, founder of the options analytics service SpotGamma, noted that the expiration may catalyze movement in the S&P 500 after a prolonged period of stability. Recent trading behaviors indicate that traders are actively selling call options on the index while simultaneously purchasing volatility on individual stocks. This strategy appears to coincide with the anticipation of upcoming corporate earnings reports, suggesting that investors are betting on volatility in individual stock performances while maintaining a stable broader market.
As more traders sell call options around the 7,000 level, they create a condition referred to as “net long gamma,” which requires options dealers to engage in specific trading behaviors intended to neutralize their positions. This dynamic can suppress general market volatility by encouraging dealers to sell stock futures when prices rise, and buy them during sell-offs, thus keeping market movements within a constrained range.
The history of market behavior indicates that the week following options expiration typically sees greater-than-normal price swings. Over the past year, the S&P 500 has averaged a 2% movement in either direction during this period, compared to an average of 1.5% for all weeks. This historical trend suggests that traders may need to brace themselves for more substantial price action.
In addition to the surge in options-related volatility, several upcoming events could serve as significant market catalysts. These include a potential Supreme Court ruling concerning the legality of tariffs implemented during the Trump administration, an important Federal Reserve meeting, and developments in an ongoing investigation by the U.S. Justice Department into Federal Reserve Chair Jerome Powell.
Beyond the index options, the expiration of single stock options is expected to influence trading, particularly for popular stocks like Nvidia and Tesla, where a significant number of open contracts will expire at the same time. The concentration of options contracts in these stocks could lead to notable price movements, as highlighted by strategist Mike Khouw.
Investors are clearly navigating a complex landscape as they prepare for potentially increased volatility prompted by this month’s options expiration and a series of influential market events.
