XLF · PUTS · OCT 23Settled

Open interest in XLF puts expiring Oct 23 (1 week out) rose 32,415 at the Oct 13 settlement

As of Oct 13, 2026 settlement. Source: Cboe settlement open interest archive.

18,564 to 50,979 contracts between the Oct 12 and Oct 13 settlements, 175% of the prior figure.

Evidence

The numbers behind this snapshot, Oct 13, 2026 settlement. Open interest change, not trades; it does not say which side opened or closed.
Measure	Value
Open interest, earlier settlement	18,564
Open interest, later settlement	50,979
Change (contracts)	+32,415
Change as a share of the earlier figure	175%
Earlier settlement	Oct 12, 2026
Later settlement	Oct 13, 2026
Days to expiry	10

Rule: |change| >= 10000 or (>= 2000 and >= 50% of prior), and |change share| >= 2.0 x bucket median; prior OI >= 1000
Values that cleared it: Change: 32,415; Change as a share of the earlier figure: 1.7461
Contracts traded behind each figure: Open interest changed: 9
Baseline: median absolute open interest change share, contracts 1 to 3 weeks out: 0.0691
Baseline window: last 20 sessions
Baseline n: 20
Claim level: 0, a reported fact

This snapshot is itself a settlement figure, so it has no follow-up of its own.

XLFCDEC 18Open interest change
Settled
Open interest in XLF calls expiring Dec 18 fell 29,552 at the Oct 13 settlement
442,634 to 413,082 contracts between the Oct 12 and Oct 13 settlements, 7% of the prior figure.
Source: Cboe settlement open interest archiveXLF page Details