MSFTCNOV 4Open interest change
Open interest in MSFT calls expiring Nov 4 (1 week out) rose 5,774 at the Oct 28 settlement
2,190 to 7,964 contracts between the Oct 27 and Oct 28 settlements, 264% of the prior figure.
MSFT · PUTS · OCT 30Settled
Open interest in MSFT puts expiring Oct 30 rose 60,702 at the Oct 28 settlement
As of . Source: settlement open interest archive.
On the page at squawkflow.com/options-flow/2026-10-28/msft-puts-oct-30-2026-open-interest-change: the evidence table and the rule this settlement figure passed; and up to six other MSFT snapshots from Oct 28, 2026.
75,637 to 136,339 contracts between the Oct 27 and Oct 28 settlements, 80% of the prior figure.
Evidence
| Measure | Value |
|---|---|
| Open interest, earlier settlement | 75,637 |
| Open interest, later settlement | 136,339 |
| Change (contracts) | +60,702 |
| Change as a share of the earlier figure | 80% |
| Earlier settlement | Oct 27, 2026 |
| Later settlement | Oct 28, 2026 |
| Days to expiry | 2 |
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: 60,702; Change as a share of the earlier figure: 0.8025
- Contracts traded behind each figure
- Open interest changed: 80
- Baseline
- median absolute open interest change share, contracts within a week: 0.2999
- Baseline window
- last 20 sessions
- Baseline n
- 20
- 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.
More MSFT snapshots, Oct 28, 2026
All MSFT snapshots on the hub- MSFTPMAR 19 '27Put/call by expiry
MSFT puts expiring Mar 19, 2027 traded 6.0x the calls, vs a 0.8x median
The median is MSFT's put/call volume ratio for contracts more than 3 months out over the last 14 sessions. 3,772 put and 627 call contracts by 11:28 ET on Oct 28, 2026. Tracked: up to 40 strikes around the money across 22 expirations.
- MSFTCNOV 13Put/call by expiry
MSFT calls outnumbered puts 8.3 to 1 expiring Nov 13 (2 weeks out), vs a 1.7 median
The median is MSFT's call/put volume ratio for contracts 1 to 3 weeks out over the last 14 sessions. 4,197 call and 505 put contracts by 11:17 ET on Oct 28, 2026. Tracked: up to 40 strikes around the money across 22 expirations.
- MSFTCDEC 18Put/call by expiry
MSFT calls outnumbered puts 4.2 to 1 expiring Dec 18, vs a 1.5 median
The median is MSFT's call/put volume ratio for contracts 1 to 3 months out over the last 14 sessions. 2,828 call and 680 put contracts by 10:53 ET on Oct 28, 2026. Tracked: up to 40 strikes around the money across 22 expirations.
- MSFTPJAN 15 '27Put/call by expiry
MSFT puts expiring Jan 15, 2027 traded 2.1x the calls, vs a 0.7x median
The median is MSFT's put/call volume ratio for contracts 1 to 3 months out over the last 14 sessions. 2,528 put and 1,226 call contracts by 10:12 ET on Oct 28, 2026. Tracked: up to 40 strikes around the money across 22 expirations.
- MSFTCNOV 20Put/call by expiry
MSFT calls outnumbered puts 2.7 to 1 expiring Nov 20, vs a 1.5 median
The median is MSFT's call/put volume ratio for contracts 1 to 3 months out over the last 14 sessions. 2,331 call and 853 put contracts by 09:48 ET on Oct 28, 2026. Tracked: up to 40 strikes around the money across 22 expirations.