SPXmeasured pin rateupdated 2026-09-27
How often does SPX close at 0DTE max pain?
0%n = 1 sessions0 of 1 sessions closed within 5 pts of 0DTE max pain · median 43.51 pts · 2026-09-25 → 2026-09-25
How the pin rate is measured
The share of finalized sessions whose official close landed within each fixed distance of the 0DTE max-pain strike, measured from this site's own archive. No threshold is picked for you; n is disclosed.
Run your SPX strike
holding one into the close?
| Distance from max pain | Sessions | Share |
|---|---|---|
| within 5 pts | 0 of 1 | 0% |
| within 10 pts | 0 of 1 | 0% |
| within 0.10% | 0 of 1 | 0% |
Per-session rows: archive. Method: methodology. Cite: how to cite us.
Quick answers
Does SPX pin at max pain on expiration?
0 of 1 sessions (0%) closed within 5 pts of 0DTE max pain; median distance 43.51 pts. Window: last 1 finalized sessions (cap 90), 2026-09-25 → 2026-09-25.
What counts as a pin here?
We don't pick one threshold. The table shows the share of sessions inside several fixed distances so you can apply your own. Distances are measured from the official close to the 0DTE max-pain strike computed from delayed open interest at the close.
Why is every pin number approximate, including yours?
Open interest is published once a day, quotes are 15-minute delayed, and "max pain" is a model with choices in it (which contracts, which OI). We disclose ours on the methodology page and publish every session so you can recompute.