$SPX gamma flipped negative yesterday at -$57M — first time since July 31 — but institutions stopped buying puts the same session. That combination almost never happens, and it tells you what kind of negative this is.
Fear isn't driving it. Time is. Gamma bled out through decay and expiration drains, not hedging demand. Vol put/call dropped to 1.20, lowest since the July 22 recovery.
Compare it to July. That crisis ran from +$1.23B to -$722M in six sessions. This took twelve, and the net is only -$57M.
The twelve-session arc: 1.42B → 1.35B → 1.04B → 1.18B → 1.07B → 1.05B → 953M → 1.03B → 1.35B → 711M → 275M → 462M → -57M. The structure decayed. It did not break.
What matters now is the chain underneath. 7,500 at -$83M, 7,600 at -$80M, 7,575 at -$74M — four accelerators in the top ten. Lighter than July's -$107M to -$124M per strike, but dense enough to amplify a pullback if today doesn't clear them.
Today is the largest drain of the cycle, and several of those accelerators expire in it. July 31 OPEX cleared -$722M. Today's works on -$57M. The task is smaller.
Magnets above are intact: 7,800 at +$74M, 7,900 at +$89M, 8,000 at +$114M. If the drain clears the near-spot chain, they re-engage next week.
Range today: 7,625 to 7,750. Flip at 7,694, eighteen points above spot.
Fear isn't driving it. Time is. Gamma bled out through decay and expiration drains, not hedging demand. Vol put/call dropped to 1.20, lowest since the July 22 recovery.
Compare it to July. That crisis ran from +$1.23B to -$722M in six sessions. This took twelve, and the net is only -$57M.
The twelve-session arc: 1.42B → 1.35B → 1.04B → 1.18B → 1.07B → 1.05B → 953M → 1.03B → 1.35B → 711M → 275M → 462M → -57M. The structure decayed. It did not break.
What matters now is the chain underneath. 7,500 at -$83M, 7,600 at -$80M, 7,575 at -$74M — four accelerators in the top ten. Lighter than July's -$107M to -$124M per strike, but dense enough to amplify a pullback if today doesn't clear them.
Today is the largest drain of the cycle, and several of those accelerators expire in it. July 31 OPEX cleared -$722M. Today's works on -$57M. The task is smaller.
Magnets above are intact: 7,800 at +$74M, 7,900 at +$89M, 8,000 at +$114M. If the drain clears the near-spot chain, they re-engage next week.
Range today: 7,625 to 7,750. Flip at 7,694, eighteen points above spot.