WMBCNOV 6Open interest change
Open interest in WMB calls expiring Nov 6 (1 week out) rose 75,988 at the Oct 28 settlement
4,075 to 80,063 contracts between the Oct 27 and Oct 28 settlements, 1865% of the prior figure.
WMB · CALLS · NOV 20Settled
Open interest in WMB calls expiring Nov 20 fell 41,021 at the Oct 28 settlement
As of . Source: settlement open interest archive.
On the page at squawkflow.com/options-flow/2026-10-28/wmb-calls-nov-20-2026-open-interest-change: the evidence table and the rule this settlement figure passed; and up to six other WMB snapshots from Oct 28, 2026.
143,242 to 102,221 contracts between the Oct 27 and Oct 28 settlements, 29% of the prior figure.
Evidence
| Measure | Value |
|---|---|
| Open interest, earlier settlement | 143,242 |
| Open interest, later settlement | 102,221 |
| Change (contracts) | -41,021 |
| Change as a share of the earlier figure | -29% |
| Earlier settlement | Oct 27, 2026 |
| Later settlement | Oct 28, 2026 |
| Days to expiry | 23 |
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: -41,021; Change as a share of the earlier figure: -0.2864
- Contracts traded behind each figure
- Open interest changed: 15
- Baseline
- median absolute open interest change share, contracts 1 to 3 months out: 0.0036
- 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.