MSFTPOCT 30Open interest change
Open interest in MSFT puts expiring Oct 30 rose 60,702 at the Oct 28 settlement
75,637 to 136,339 contracts between the Oct 27 and Oct 28 settlements, 80% of the prior figure.
MSFT · CALLS · NOV 4Settled
Open interest in MSFT calls expiring Nov 4 (1 week out) rose 5,774 at the Oct 28 settlement
As of . Source: settlement open interest archive.
On the page at squawkflow.com/options-flow/2026-10-28/msft-calls-nov-4-2026-open-interest-change: the evidence table and the rule this settlement figure passed; and up to six other MSFT snapshots from Oct 28, 2026.
2,190 to 7,964 contracts between the Oct 27 and Oct 28 settlements, 264% of the prior figure.
Evidence
| Measure | Value |
|---|---|
| Open interest, earlier settlement | 2,190 |
| Open interest, later settlement | 7,964 |
| Change (contracts) | +5,774 |
| Change as a share of the earlier figure | 264% |
| Earlier settlement | Oct 27, 2026 |
| Later settlement | Oct 28, 2026 |
| Days to expiry | 7 |
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: 5,774; Change as a share of the earlier figure: 2.6365
- Contracts traded behind each figure
- Open interest changed: 47
- Baseline
- median absolute open interest change share, contracts 1 to 3 weeks out: 0.0998
- 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.