Case studies
Case 03Called liveFriday, September 4, 2026

Calls sold, puts bought, and the 7700 strike underneath

The flow was bearish all morning. The low printed six points above the one strike that mattered.

SPX open
7,750.19
High
7,750.19

09:30 ET

Low
7,706.12

11:31 ET

Close
7,718.36
0DTE net gamma positive
73%

of the session's minutes

All-expiry net gamma positive
59%

of the session's minutes

VIX open → close
14.03 → 14.53
VIX high
14.53

The dive and the hold

The story

  1. Jobs day. The opening print, 7750.19, was the high — on the strike that by 10:00 was +$6.2B against -$5.8B one strike up, a sold call spread.
  2. By 11:11 call premium was -$12.9M and put premium +$5.0M. Calls sold, puts bought — the bearish mirror of a squeeze.
  3. Under price sat 7700 at +$3.1B and 7675 at +$2.5B, both almost entirely puts that customers had sold.
  4. Low 7706.12 at 11:31, 6.1 points above 7700. Put buying stopped growing after noon.
  5. Then what: net gamma turned positive again by 14:00 and the afternoon range was 12 points.

Minute by minute

The beats

  1. 09:30 ET

    the open is the high: 7750.19, on the strike

  2. 10:00 ET

    7750 at +$6.2B against -$5.8B at 7755: a sold call spread on the open print

  3. 11:11 ETposted live

    the post: calls -$12.9M, puts +$5.0M; 7700 +$3.1B below

  4. 11:31 ET

    session low 7706.12

  5. 14:00 ET

    0DTE net gamma back to +$5.2B

  6. 16:00 ET

    close 7718.36

In #qo-market-data, as it happened

Posted live

11:11 ET
Call selling and put this morning. 7700 large round number and large positive gamma strike through OPEX just below. Still a lot of green on the screen with semis up strong so no widespread selling. SPX tagging 20d SMA now as well. VIX contained too. IWM green on the screen too.
15:59 ET
Have a good weekend and holiday to those who celebrate. Hope today was a good day and you stayed out of trouble with the data. Market is back in positive gamma. Bears fumbled the day.

From the product

The dashboard at each beat

Premium Flow, Cumulative Net Delta and Gamma Flow By Strike on one screen, replayed to the minute. Real frames, nothing redrawn. Click the right of the frame to step to the next beat.

Dashboard frame 1 of 6: 09:30 ET — The open is the high: 7750.19, on the strike

1 / 6

09:30 ET — The open is the high: 7750.19, on the strike

More of this session

The short cut

The short cut

10 slides

The case, slide by slide

Slide 1 of 10

1 / 10

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