SPX dealer positioning, the week of May 25, 2026
May 25 to May 29 · 4 of 5 days traded · each session free to replay
| Day | Open | Close | Change | Range | Close to close | Flip at the close | Gamma at the close |
|---|---|---|---|---|---|---|---|
| Monday May 25 | no session | ||||||
| Tuesday May 26 | 7516.9 | 7519.0 | +2.2 +0.03% | 36.9 | +45.7 | 7513.4 crossed 17x | positive |
| Wednesday May 27 | 7527.0 | 7520.3 | -6.7 -0.09% | 29.4 | +1.3 | 7517.8 crossed 36x | positive |
| Thursday May 28 | 7519.4 | 7563.4 | +44.1 +0.59% | 57.5 | +43.1 | 7556.1 crossed 5x | positive |
| Friday May 29 | 7573.0 | 7581.2 | +8.2 +0.11% | 30.0 | +17.8 | 7580.9 crossed 24x | positive |
Week: +107.9 points (+1.44%), close to close from 2026-05-22.
Ranges: 153.7 points over 4 sessions, the largest 57.5 on 2026-05-28.
Zero-gamma flip at the close: 7513.4 on the first session, 7580.9 on the last (+67.4 points).
Closed in positive gamma: 4 of 4 sessions.
Events this week
- May 26
10:00Consumer confidence (Conference Board)
spot +6.2 in the 15 minutes after 10:00; flip 7442.1 → 7444.6; net gamma long - May 27
09:30VIX settlement
spot -9.1 in the 15 minutes after 09:30; flip 7451.5 → 7418.2; net gamma long - May 28
08:30PCE inflation, income and spending · high impact
Core PCE m/m: actual 0.3% / prior 0.3% - May 28
08:30Durable goods orders
Durable goods m/m: actual 8.5% / prior 1.3% - May 28
08:30GDP
GDP q/q: actual 1.5% / prior 2.1% - May 28
08:30Housing starts
Housing starts: actual 1414K / prior 1522K - May 28
16:05COST earnings - May 29 On the same day: index rebalance, month-end SPX
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.