U · PUTS · NOV 6Settled

Open interest in U puts expiring Nov 6 rose 4,006 at the Oct 7 settlement

As of Oct 7, 2026 settlement. Source: Cboe settlement open interest archive.

3,498 to 7,504 contracts between the Oct 6 and Oct 7 settlements, 115% of the prior figure.

Evidence

The numbers behind this snapshot, Oct 7, 2026 settlement. Open interest change, not trades; it does not say which side opened or closed.
Measure	Value
Open interest, earlier settlement	3,498
Open interest, later settlement	7,504
Change (contracts)	+4,006
Change as a share of the earlier figure	115%
Earlier settlement	Oct 6, 2026
Later settlement	Oct 7, 2026
Days to expiry	30

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: 4,006; Change as a share of the earlier figure: 1.1452
Contracts traded behind each figure: Open interest changed: 9
Baseline: median absolute open interest change share, contracts 1 to 3 months out: 0.0192
Baseline window: last 20 sessions
Baseline n: 18
Claim level: 0, a reported fact

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