Call walls breached, 0DTE sweep confirmed — tape holds near highs into close

The Monday morning gap-up thesis played out with precision: SPY opened at 766.38, rallied to a session high of 771.85, and is now sitting just below the 772 call wall with +1.31% on the day. Over $1.2 billion in SPX 0DTE call sweeps fired at the open across the 7700–7725 strike cluster — those bets are now deep in the money with SPX at 7748.

The afternoon question is whether the tape can push through the 772 SPY / 7755 SPX call wall into the final hours of 0DTE expiry, or whether negative gamma in IWM and a VIX that has ticked up to 15.02 — still well within normal regime — creates enough friction to pin price near current levels. IWM is the outlier: sitting just above its 285 put wall with a 'chop' trend bias and a lower-highs structure, it's lagging the rest of the tape significantly.