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September's $9.6 trillion options expiry has markets in preparation mode

8/31/2026

A $9.6 trillion options expiration is set for September, and markets are already moving into preparation mode for it. The number alone commands attention.

The risk is that attention and consequence are not the same thing, and the weeks of positioning that precede an expiry of this scale can matter more than the settlement date itself.

The case for treating this as a significant market event rests on the aggregate notional. At $9.6 trillion, the expiration encompasses contracts that must be settled or repositioned.

Preparation at that scale is not a last-minute exercise. Flow adjustments begin well before the calendar date, which means September's expiry is already shaping the market even as it sits weeks ahead.

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