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

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ROKU · PUTS · DEC 18Settled

Open interest in ROKU puts expiring Dec 18 rose 3,306 at the Oct 6 settlement

As of . Source: Cboe settlement open interest archive.

5,631 to 8,937 contracts between the Oct 5 and Oct 6 settlements, 59% of the prior figure.

Evidence

The numbers behind this snapshot, Oct 6, 2026 settlement. Open interest change, not trades; it does not say which side opened or closed.
MeasureValue
Open interest, earlier settlement5,631
Open interest, later settlement8,937
Change (contracts)+3,306
Change as a share of the earlier figure59%
Earlier settlementOct 5, 2026
Later settlementOct 6, 2026
Days to expiry73

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: 3,306; Change as a share of the earlier figure: 0.5871
Contracts traded behind each figure
Open interest changed: 4
Baseline
median absolute open interest change share, contracts 1 to 3 months out: 0.012
Baseline window
last 20 sessions
Baseline n
8
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.