MSTR · CALLS · OCT 30Settled

Open interest in MSTR calls expiring Oct 30 (1 week out) rose 26,013 at the Oct 22 settlement

As of Oct 22, 2026 settlement. Source: Cboe settlement open interest archive.

55,185 to 81,198 contracts between the Oct 21 and Oct 22 settlements, 47% of the prior figure.

Evidence

The numbers behind this snapshot, Oct 22, 2026 settlement. Open interest change, not trades; it does not say which side opened or closed.
Measure	Value
Open interest, earlier settlement	55,185
Open interest, later settlement	81,198
Change (contracts)	+26,013
Change as a share of the earlier figure	47%
Earlier settlement	Oct 21, 2026
Later settlement	Oct 22, 2026
Days to expiry	8

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: 26,013; Change as a share of the earlier figure: 0.4714
Contracts traded behind each figure: Open interest changed: 68
Baseline: median absolute open interest change share, contracts 1 to 3 weeks out: 0.0878
Baseline window: last 20 sessions
Baseline n: 15
Claim level: 0, a reported fact

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