TLT · CALLS · OCT 21Settled

Open interest in TLT calls expiring Oct 21 (2 weeks out) rose 7,593 at the Oct 7 settlement

As of Oct 7, 2026 settlement. Source: Cboe settlement open interest archive.

5,343 to 12,936 contracts between the Oct 6 and Oct 7 settlements, 142% of the prior figure.

Evidence

The numbers behind this snapshot, Oct 7, 2026 settlement. Open interest change, not trades; it does not say which side opened or closed.
Measure	Value
Open interest, earlier settlement	5,343
Open interest, later settlement	12,936
Change (contracts)	+7,593
Change as a share of the earlier figure	142%
Earlier settlement	Oct 6, 2026
Later settlement	Oct 7, 2026
Days to expiry	14

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: 7,593; Change as a share of the earlier figure: 1.4211
Contracts traded behind each figure: Open interest changed: 12
Baseline: median absolute open interest change share, contracts 1 to 3 weeks out: 0.1039
Baseline window: last 20 sessions
Baseline n: 18
Claim level: 0, a reported fact

This snapshot is itself a settlement figure, so it has no follow-up of its own.

TLTPOCT 14Open interest change
Settled
Open interest in TLT puts expiring Oct 14 (1 week out) rose 12,643 at the Oct 7 settlement
9,929 to 22,572 contracts between the Oct 6 and Oct 7 settlements, 127% of the prior figure.
Source: Cboe settlement open interest archiveTLT page Details