WMT · CALLS · NOV 20Settled

Open interest in WMT calls expiring Nov 20 rose 39,483 at the Oct 13 settlement

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

296,014 to 335,497 contracts between the Oct 12 and Oct 13 settlements, 13% 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	296,014
Open interest, later settlement	335,497
Change (contracts)	+39,483
Change as a share of the earlier figure	13%
Earlier settlement	Oct 12, 2026
Later settlement	Oct 13, 2026
Days to expiry	38

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: 39,483; Change as a share of the earlier figure: 0.1334
Contracts traded behind each figure: Open interest changed: 11
Baseline: median absolute open interest change share, contracts 1 to 3 months out: 0.028
Baseline window: last 20 sessions
Baseline n: 17
Claim level: 0, a reported fact

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