XLF · PUTS · JAN 15 '27Settled

Open interest in XLF puts expiring Jan 15, 2027 rose 53,490 at the Oct 21 settlement

As of Oct 21, 2026 settlement. Source: Cboe settlement open interest archive.

701,664 to 755,154 contracts between the Oct 20 and Oct 21 settlements, 8% of the prior figure.

Evidence

The numbers behind this snapshot, Oct 21, 2026 settlement. Open interest change, not trades; it does not say which side opened or closed.
Measure	Value
Open interest, earlier settlement	701,664
Open interest, later settlement	755,154
Change (contracts)	+53,490
Change as a share of the earlier figure	8%
Earlier settlement	Oct 20, 2026
Later settlement	Oct 21, 2026
Days to expiry	86

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: 53,490; Change as a share of the earlier figure: 0.0762
Contracts traded behind each figure: Open interest changed: 20
Baseline: median absolute open interest change share, contracts 1 to 3 months out: 0.0299
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.