SPX dealer positioning, the week of April 17, 2023

Apr 17 to Apr 21 · 5 of 5 days traded · each session free to replay

← the week of Apr 10 the week of Apr 24 →the calendar for this week every session

Day	Open	Close	Change	Range	Close to close	Flip at the close	Gamma at the close
Monday Apr 17	4136.4	4151.0	+14.6 +0.35%	26.9	+12.7	4146.0 not crossed	positive
Tuesday Apr 18	4164.4	4155.2	-9.3 -0.22%	27.2	+4.2	4116.4 not crossed	positive
Wednesday Apr 19	4137.9	4154.5	+16.6 +0.40%	27.0	-0.7	4108.9 crossed 1x	positive
Thursday Apr 20	4125.3	4129.4	+4.1 +0.10%	33.6	-25.1	4135.2 crossed 4x	negative
Friday Apr 21	4129.6	4133.9	+4.3 +0.10%	22.6	+4.5	4133.8 crossed 3x	positive

Week: -4.4 points (-0.11%), close to close from 2023-04-14.
Ranges: 137.3 points over 5 sessions, the largest 33.6 on 2023-04-20.
Zero-gamma flip at the close: 4146.0 on the first session, 4133.8 on the last (-12.2 points).
Closed in positive gamma: 4 of 5 sessions.

Events this week

Apr 18 07:00 JNJ earnings
Apr 18 08:30 Housing starts
Housing starts: actual 1366K / prior 1395K
Apr 18 16:05 NFLX earnings
Apr 19 09:30 VIX settlement
spot -1.2 in the 15 minutes after 09:30; flip 4086.1 → 4094.5; net gamma long; walls 4086.1 / 4166.3 → 4094.5 / 4185.0
Apr 19 13:00 20-year bond auction, $12B (reopening)
spot +3.9 in the 15 minutes after 13:00; flip 4094.0 → 4094.1; net gamma long; walls 4093.9 / 4171.8 → 4094.1 / 4171.1
Apr 19 16:05 TSLA earnings
Apr 21 07:00 PG earnings

Prices are SPX at the minute. Change is close minus open; close to close is against the previous finished session. The zero-gamma flip is the terminal's measured flip at the close, and "crossed" counts the minutes the tape changed sides of it. Gamma at the close is where the close sat against that flip. Events are the market calendar's high and medium impact rows; the line under an in-session event is what the book did in the fifteen minutes after it, from the day's own payload. Nothing here is a forecast; see the Terms.