Election 2026: what SPX options price for the Nov 4 session.Election 2026: what SPX options price

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CMG · CALLS · OCT 9Settled

Open interest in CMG calls expiring Oct 9 fell 15,235 at the Oct 8 settlement

As of . Source: Cboe settlement open interest archive.

80,881 to 65,646 contracts between the Oct 7 and Oct 8 settlements, 19% of the prior figure.

Evidence

The numbers behind this snapshot, Oct 8, 2026 settlement. Open interest change, not trades; it does not say which side opened or closed.
MeasureValue
Open interest, earlier settlement80,881
Open interest, later settlement65,646
Change (contracts)-15,235
Change as a share of the earlier figure-19%
Earlier settlementOct 7, 2026
Later settlementOct 8, 2026
Days to expiry1

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: -15,235; Change as a share of the earlier figure: -0.1884
Contracts traded behind each figure
Open interest changed: 36
Baseline
median absolute open interest change share, contracts within a week: 0.0597
Baseline window
last 20 sessions
Baseline n
15
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.

All CMG snapshots on the hub