SPY0DTE session2026-09-25official close
Which close is used
CBOE's official close field when the payload carries it; otherwise the last delayed print, and the row says so (last_delayed_print). SPXW PM settlement uses the official closing index value, which can differ from the last print by cents.
SPY 0DTE session 2026-09-25: close 771.35, 5.35 pts from max pain
771.355.35 pts from max pain 766official close (cboe_close) · 0.69% · measured from 110 delayed snapshots · last verified 2026-09-25
Open768.79
High772.28
Low766.29
Prev close767.18
Max pain 3:30 → close766 → 766
How max pain is computed
The strike at which the session's expiring contracts would pay out the least intrinsic value in total, weighting every call and put by its open interest — this session's 0DTE contracts only (SPXW for SPX), from CBOE's once-a-day open interest. A modeled level, not a target.
Nearest strike7710.35 pts from the close
Walls at 3:30772 / 767call / put
How the walls are found
Call wall: the strike with the largest 0DTE call open interest at or above spot. Put wall: the same for puts at or below spot. Both are searched within 2× the ATM straddle, never less than 0.5% of spot, so deep out-of-the-money strikes do not count.
9:45 straddle vs range±2.58 / 5.99implied / realized
What the ATM straddle implies
The mid of the call plus the mid of the put at the strike nearest spot: what the 0DTE market was charging for a move to the close in either direction. A price, not a range the close has to respect.

Quick answers
Did SPY pin at max pain on 2026-09-25?
The official close 771.35 landed 5.35 pts (0.69%) from the 0DTE max-pain strike 766. Whether that counts as a "pin" depends on the threshold you pick — see the measured pin rate for the distribution.
What were the SPY 0DTE walls at 3:30pm?
Call wall 772, put wall 767 — the largest 0DTE open interest above and below spot within 2× the ATM straddle at the 3:30 snapshot (delayed). Modeled levels, not targets.
Implied vs realized on 2026-09-25?
The 9:45am ATM straddle priced a ±2.58 move; the session's high-low range was 5.99.
Cite this
0dteclose. "SPY 0DTE session 2026-09-25: close 771.35, max pain 766, 5.35 pts from max pain." https://0dteclose.com/sessions/spy/2026-09-25/ (15-min delayed CBOE data, official close).
Embed the card: <img src="https://0dteclose.com/cards/2026-09-25/SPY-postmortem.png" alt="SPY 0DTE post-mortem 2026-09-25"> — CC BY 4.0, link back.
Next
- methodology why every pin number is approximate
- that morning's levels
- 9:45 straddle vs this close
- SPY measured pin rate
- session archive