SPX dealer positioning, the week of August 10, 2026
Aug 10 to Aug 14 · 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 Aug 10 | 7756.3 | 7752.9 | -3.4 -0.04% | 28.4 | -5.6 | 7754.9 crossed 13x | negative |
| Tuesday Aug 11 | 7762.4 | 7727.6 | -34.8 -0.45% | 44.8 | -25.3 | 7736.1 crossed 9x | negative |
| Wednesday Aug 12 | 7761.6 | 7748.5 | -13.1 -0.17% | 23.0 | +20.9 | 7750.6 crossed 22x | negative |
| Thursday Aug 13 | 7766.7 | 7798.8 | +32.1 +0.41% | 48.9 | +50.3 | 7792.0 crossed 4x | positive |
| Friday Aug 14 | 7801.8 | 7785.9 | -15.9 -0.20% | 32.4 | -12.9 | 7785.1 crossed 6x | positive |
Week: +27.3 points (+0.35%), close to close from 2026-08-07.
Ranges: 177.6 points over 5 sessions, the largest 48.9 on 2026-08-13.
Zero-gamma flip at the close: 7754.9 on the first session, 7785.1 on the last (+30.3 points).
Closed in positive gamma: 2 of 5 sessions.
Events this week
- Aug 12
08:30CPI · high impact
CPI y/y: actual 3.5% / prior 3.7%; Core CPI m/m: actual 0.2% / prior -0.0% - Aug 12
09:30VIX settlement
spot -11.6 in the 15 minutes after 09:30; flip 7504.1 → 7645.2; net gamma long - Aug 12
13:0010-year note auction, $42B
spot -1.8 in the 15 minutes after 13:00; flip 7662.5 → 7665.5; net gamma long - Aug 13
08:30PPI
PPI m/m: actual -0.0% / prior -0.1% - Aug 13
13:0030-year bond auction, $25B
spot +3.2 in the 15 minutes after 13:00; flip 7707.5 → 7709.4; net gamma long - Aug 14
08:30Retail sales
Retail sales m/m: actual -0.6% / prior 0.2% - Aug 14
10:00UMich consumer sentiment (preliminary)
Sentiment: prior 55.2; 1y inflation: prior 4.2%; 5y inflation: prior 3.3%
spot -1.5 in the 15 minutes after 10:00; flip 7598.4 → 7634.5; net gamma long
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.