TLTPNOV 13Open interest change
Open interest in TLT puts expiring Nov 13 rose 8,011 at the Oct 8 settlement
15,624 to 23,635 contracts between the Oct 7 and Oct 8 settlements, 51% of the prior figure.
TLT · CALLS · OCT 21Settled
Open interest in TLT calls expiring Oct 21 (2 weeks out) rose 9,749 at the Oct 8 settlement
As of . Source: Cboe settlement open interest archive.
12,936 to 22,685 contracts between the Oct 7 and Oct 8 settlements, 75% of the prior figure.
Evidence
| Measure | Value |
|---|---|
| Open interest, earlier settlement | 12,936 |
| Open interest, later settlement | 22,685 |
| Change (contracts) | +9,749 |
| Change as a share of the earlier figure | 75% |
| Earlier settlement | Oct 7, 2026 |
| Later settlement | Oct 8, 2026 |
| Days to expiry | 13 |
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: 9,749; Change as a share of the earlier figure: 0.7536
- Contracts traded behind each figure
- Open interest changed: 18
- Baseline
- median absolute open interest change share, contracts 1 to 3 weeks out: 0.0984
- Baseline window
- last 20 sessions
- Baseline n
- 19
- 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.