SPX dealer positioning, the week of September 28, 2026
Sep 28 to Oct 2 · 5 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 Sep 28 | 7706.3 | 7683.5 | -22.8 -0.30% | 54.5 | -59.9 | 7693.7 crossed 14x | negative |
| Tuesday Sep 29 | 7690.3 | 7669.9 | -20.4 -0.27% | 36.6 | -13.6 | 7668.6 crossed 22x | positive |
| Wednesday Sep 30 | 7694.0 | 7651.5 | -42.5 -0.55% | 69.3 | -18.4 | 7700.1 crossed 5x | negative |
| Thursday Oct 1 | 7668.3 | 7666.9 | -1.4 -0.02% | 63.5 | +15.4 | 7658.0 crossed 9x | positive |
| Friday Oct 2 | 7729.6 | 7722.3 | -7.4 -0.10% | 50.6 | +55.4 | 7722.3 crossed 15x | negative |
Week: -21.1 points (-0.27%), close to close from 2026-09-25.
Ranges: 274.5 points over 5 sessions, the largest 69.3 on 2026-09-30.
Zero-gamma flip at the close: 7693.7 on the first session, 7722.3 on the last (+28.6 points).
Closed in positive gamma: 2 of 5 sessions.
Events this week
- Sep 28
08:30Retail sales
Retail sales m/m: actual 1.1% / prior -0.5% - Sep 29
10:00Consumer confidence (Conference Board)
spot -4.5 in the 15 minutes after 10:00; flip 7597.4 → 7597.9; net gamma long - Sep 29
10:00JOLTS job openings
Openings: actual 7.33M / forecast 7.23M / prior 7.27M
spot -4.5 in the 15 minutes after 10:00; flip 7597.4 → 7597.9; net gamma long - Sep 30
08:30PCE inflation, income and spending · high impact
Core PCE m/m: actual 0.2% / forecast 0.3% / prior 0.2% - Sep 30
08:30GDP
GDP q/q: actual 2.2% / forecast 1.5% / prior 1.5% - Sep 30
09:30VIX settlement
spot -2.8 in the 15 minutes after 09:30; flip 7575.6 → 7575.9; net gamma long - Sep 30 Quarter-end SPX expiry (the JPMorgan collar resets)
- Oct 1
10:00ISM manufacturing PMI
PMI: forecast 54.8 / prior 54.6
spot -4.7 in the 15 minutes after 10:00; flip 7669.7 → 7669.3; net gamma short - Oct 2
08:30Nonfarm payrolls · high impact
Hourly earnings m/m: forecast 0.3% / prior 0.3%; Payrolls: actual 29K / forecast 89K / prior 162K; Unemployment rate: actual 4.2% / forecast 4.1% / prior 4.1% - Oct 2
08:30Durable goods orders
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.