XLF · CALLS · DEC 18Settled

Open interest in XLF calls expiring Dec 18 fell 29,552 at the Oct 13 settlement

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

442,634 to 413,082 contracts between the Oct 12 and Oct 13 settlements, 7% 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	442,634
Open interest, later settlement	413,082
Change (contracts)	-29,552
Change as a share of the earlier figure	-7%
Earlier settlement	Oct 12, 2026
Later settlement	Oct 13, 2026
Days to expiry	66

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: -29,552; Change as a share of the earlier figure: -0.0668
Contracts traded behind each figure: Open interest changed: 15
Baseline: median absolute open interest change share, contracts 1 to 3 months out: 0.0328
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.

XLFPOCT 23Open interest change
Settled
Open interest in XLF puts expiring Oct 23 (1 week out) rose 32,415 at the Oct 13 settlement
18,564 to 50,979 contracts between the Oct 12 and Oct 13 settlements, 175% of the prior figure.
Source: Cboe settlement open interest archiveXLF page Details