Heading into Tuesday's open, SPY is trading at 751.05 in pre-market — sitting above its 750 call wall for the first time, with QQQ up 0.51% to 726.44 and already clearing its own 720 call wall by a meaningful margin. Both indices are pressing into territory where dealer gamma positioning flips from a dampening force to a potential accelerant.
The overnight setup carries real weight: NYSE advance/decline reads 27-to-7 with a TRIN of 0.15 — unusually lopsided breadth suggesting broad participation, not just mega-cap drift. VIX is ticking lower at 16.75 and VVIX has dropped 3.84%, signalling that options traders are not hedging into this move. The question for Tuesday is whether price can sustain above these structural levels once the cash session opens and 0DTE activity — running at 71.9% of SPY volume — takes over.
GEX walls are price levels where dealers hedge aggressively. Price tends to gravitate toward Max Pain and stall near walls.
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