SPX Dealer Levels: March 18, 2026
On Wednesday, March 18, 2026, SPX opened at 6,716.09 and closed at 6,624.70, a session range of 93.89 points (1.42%). The mid-session dealer positioning snapshot showed call wall 6700, put wall 6650, zero gamma 6779, max pain 6750.
Dealer positioning levels
Strike carrying the session's heaviest call-side dealer gamma. Rallies often slow into this area.
Strike carrying the heaviest put-side dealer gamma. Declines often slow near this area.
Level where net dealer gamma flips sign, separating the dampened regime above from the amplified regime below.
Expiry strike at which the total settlement value of same-day SPX options would be smallest.
Session statistics
Open
6,716.09
High
6,716.09
Low
6,622.20
Close
6,624.70
Net dealer gamma read negative at the snapshot, a backdrop in which dealer hedging flows tend to amplify intraday swings. VIX opened at 23.28 and finished at 25.09.
Levels are computed from that session's SPX option-chain snapshots and reflect a mid-session reading. Prices are session-observed values, not official settlement prints. Archive pages are static records of what the dealer book showed that day. Method details on the methodology page.
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