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CMG · PUTS · DEC 18Settled

Open interest in CMG puts expiring Dec 18 rose 55,860 at the Oct 27 settlement

As of . Source: settlement open interest archive.

On the page at squawkflow.com/options-flow/2026-10-27/cmg-puts-dec-18-2026-open-interest-change: the evidence table and the rule this settlement figure passed; and up to six other CMG snapshots from Oct 27, 2026.

104,780 to 160,640 contracts between the Oct 26 and Oct 27 settlements, 53% of the prior figure.

Evidence

The numbers behind this snapshot, Oct 27, 2026 settlement. Open interest change, not trades; it does not say which side opened or closed.
MeasureValue
Open interest, earlier settlement104,780
Open interest, later settlement160,640
Change (contracts)+55,860
Change as a share of the earlier figure53%
Earlier settlementOct 26, 2026
Later settlementOct 27, 2026
Days to expiry52

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: 55,860; Change as a share of the earlier figure: 0.5331
Contracts traded behind each figure
Open interest changed: 8
Baseline
median absolute open interest change share, contracts 1 to 3 months out: 0.0138
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.

All CMG snapshots on the hub