4 days ago • Posted by William Ramstein

Two more reasons investors are bearish in September

(1) Index option expiration and GAMMA roll off on September 17th. This long gamma position gets significantly reduced during September monthly option expiry. The past 4 monthly option expiry dates have created some added volatility as the long dealer gamma rolls off.   (2) Estimates signal that US 60-40 portfolios have actually run to 63-65% in equities vs. 37%-35% in fixed income during the quarter. According to many mandates, these are typically adjusted near quarter end. This would add to quarter-end supply estimates. @goldmansachs