MSTRPNOV 13Open interest change
Open interest in MSTR puts expiring Nov 13 rose 6,309 at the Oct 15 settlement
10,890 to 17,199 contracts between the Oct 14 and Oct 15 settlements, 58% of the prior figure.
MSTR · CALLS · OCT 23Settled
Open interest in MSTR calls expiring Oct 23 (1 week out) rose 44,493 at the Oct 15 settlement
As of . The evidence table and the rule this settlement figure passed are at squawkflow.com/options-flow/2026-10-15/mstr-calls-oct-23-2026-open-interest-change. Source: Cboe settlement open interest archive.
50,506 to 94,999 contracts between the Oct 14 and Oct 15 settlements, 88% of the prior figure.
Evidence
| Measure | Value |
|---|---|
| Open interest, earlier settlement | 50,506 |
| Open interest, later settlement | 94,999 |
| Change (contracts) | +44,493 |
| Change as a share of the earlier figure | 88% |
| Earlier settlement | Oct 14, 2026 |
| Later settlement | Oct 15, 2026 |
| Days to expiry | 8 |
Why it fired
- 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: 44,493; Change as a share of the earlier figure: 0.8809
- Contracts traded behind each figure
- Open interest changed: 67
- Baseline
- median absolute open interest change share, contracts 1 to 3 weeks out: 0.0686
- Baseline window
- last 20 sessions
- Baseline n
- 10
- Claim level
- 0, a reported fact
What happened next
This snapshot is itself a settlement figure, so it has no follow-up of its own.