At $4.5 Trillion, Today's "Quad Witch" OpEx Is Huge: Goldman Trader Warns Of Imminent Gamma Flip

As we detailed earlier, tomorrow brings the ninth option expiration of 2024 (and the last 'quad witch' before the US election) and it's a big one...

$4.5 trillion notional will expire between now and 4pm... $2.6 trillion of this is SPX Sep regular / the remaining is split across etf and single stock at end of day