The notional value of S&P 500 call options has surged to $2.6 trillion, a record that underscores how deeply artificial-intelligence enthusiasm is reshaping the market. That mountain of bullish bets is now feeding a gamma squeeze—a self-reinforcing loop that pushes stocks higher and makes old-fashioned valuation metrics look almost irrelevant, at least for now.
The $2.6 Trillion Bet
Call options give investors the right to buy a stock at a set price. When the underlying index or stock climbs, those contracts become more valuable, and dealers who sold them must hedge by buying more shares. The scale of the current pile-up is staggering: $2.6 trillion in notional exposure. That means the amount of stock that option writers may need to buy to cover their positions is enormous.
AI Enthusiasm Fuels the Options Frenzy
The surge is not random. It's concentrated in names tied to artificial intelligence, a theme that has drawn retail and institutional money alike. Traders aren't just buying shares—they're piling into call options, betting that the AI rally has further to run. The result is a feedback loop: option buying pushes up stock prices, which forces dealers to buy more stock, which pushes prices up further.
Gamma Squeeze Mechanics in Play
That feedback loop is the gamma squeeze. Dealers who sold call options are short gamma—meaning their hedging activity amplifies price moves. As the index climbs, they must buy more. The $2.6 trillion notional figure suggests the squeeze has significant force behind it. It's a dynamic that can accelerate gains quickly, but it also leaves the market vulnerable if the buying slows or reverses.
Valuation Models Under Pressure
Traditional valuation methods—price-to-earnings ratios, discounted cash flows, comparable company analysis—are struggling to explain short-term price moves. When options drive the action, fundamentals take a back seat. Investors who rely on these models may find themselves on the sidelines, watching prices rise on technical flows rather than earnings. That doesn't mean fundamentals are dead, but it does mean they're less useful for predicting what happens next week.
The question now is whether the options-driven momentum can sustain itself. Without a broader earnings foundation, the rally could stall as quickly as it started. Traders are watching dealer positioning and volatility metrics for any sign that the gamma squeeze is losing steam.
