MSTR · PUTS · OCT 23Settled

Open interest in MSTR puts expiring Oct 23 (1 week out) rose 47,212 at the Oct 16 settlement

As of Oct 16, 2026 settlement. Source: Cboe settlement open interest archive.

On the page at squawkflow.com/options-flow/2026-10-16/mstr-puts-oct-23-2026-open-interest-change: the evidence table and the rule this settlement figure passed; and up to six other MSTR snapshots from Oct 16, 2026.

123,529 to 170,741 contracts between the Oct 15 and Oct 16 settlements, 38% of the prior figure.

Evidence

The numbers behind this snapshot, Oct 16, 2026 settlement. Open interest change, not trades; it does not say which side opened or closed.
Measure	Value
Open interest, earlier settlement	123,529
Open interest, later settlement	170,741
Change (contracts)	+47,212
Change as a share of the earlier figure	38%
Earlier settlement	Oct 15, 2026
Later settlement	Oct 16, 2026
Days to expiry	7

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: 47,212; Change as a share of the earlier figure: 0.3822
Contracts traded behind each figure: Open interest changed: 73
Baseline: median absolute open interest change share, contracts 1 to 3 weeks out: 0.0718
Baseline window: last 20 sessions
Baseline n: 11
Claim level: 0, a reported fact

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

MSTRCOCT 23Open interest change
Settled
Open interest in MSTR calls expiring Oct 23 (1 week out) rose 113,679 at the Oct 16 settlement
94,999 to 208,678 contracts between the Oct 15 and Oct 16 settlements, 120% of the prior figure.
Source: Cboe settlement open interest archiveMSTR page Details