PLTRCOCT 16Open interest change
Open interest in PLTR calls expiring Oct 16 (1 week out) rose 57,761 at the Oct 9 settlement
169,007 to 226,768 contracts between the Oct 8 and Oct 9 settlements, 34% of the prior figure.
PLTR · PUTS · OCT 23Settled
Open interest in PLTR puts expiring Oct 23 (2 weeks out) rose 22,041 at the Oct 9 settlement
As of . Source: Cboe settlement open interest archive.
27,583 to 49,624 contracts between the Oct 8 and Oct 9 settlements, 80% of the prior figure.
Evidence
| Measure | Value |
|---|---|
| Open interest, earlier settlement | 27,583 |
| Open interest, later settlement | 49,624 |
| Change (contracts) | +22,041 |
| Change as a share of the earlier figure | 80% |
| Earlier settlement | Oct 8, 2026 |
| Later settlement | Oct 9, 2026 |
| Days to expiry | 14 |
Why it fired
- Rule
- |change| >= 10000 or (>= 2000 and >= 50% of prior) (absolute: baseline n 2 < 5); prior OI >= 1000
- Values that cleared it
- Change: 22,041; Change as a share of the earlier figure: 0.7991
- Contracts traded behind each figure
- Open interest changed: 55
- Baseline
- median absolute open interest change share, contracts 1 to 3 weeks out: 0.2227
- Baseline window
- last 20 sessions
- Baseline n
- 2, so the fixed threshold applied
- 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.
More PLTR snapshots, Oct 9, 2026
All PLTR snapshots on the hub- PLTRP197.5OCT 9Volume vs open interest
PLTR 197.5 puts expiring Oct 9 (same day) traded 5.8x their open interest
PLTR puts expiring that date in the strikes we track traded 0.8x their open interest, by 10:28 ET on Oct 9, 2026. Tracked: up to 40 strikes around the money across 21 expirations.
- PLTRCJAN 15 '27Put/call by expiry
PLTR calls outnumbered puts 9.2 to 1 in contracts expiring Jan 15, 2027
4,616 call and 500 put contracts by 10:08 ET on Oct 9, 2026. Est. premium $4.9M calls, $501K puts. Tracked: up to 40 strikes around the money across 21 expirations.
- PLTRNear vs far dates
PLTR put/call volume ratio held at 0.33 within 3 weeks, against 0.78 1 to 3 months out
Within 3 weeks: 17,445 put and 52,568 call contracts. 1 to 3 months out: 1,502 put and 1,937 call contracts. By 09:38 ET on Oct 9, 2026. Tracked: up to 40 strikes around the money across 21 expirations.
- PLTRCOCT 9Put/call by expiry
PLTR calls outnumbered puts 4.5 to 1 in contracts expiring Oct 9 (same day)
18,019 call and 3,993 put contracts by 09:33 ET on Oct 9, 2026. Est. premium $3.1M calls, $232K puts. Tracked: up to 40 strikes around the money across 21 expirations.
- PLTRCOCT 16Put/call by expiry
PLTR calls outnumbered puts 4.7 to 1 in contracts expiring Oct 16 (1 week out)
4,564 call and 961 put contracts by 09:33 ET on Oct 9, 2026. Est. premium $2.1M calls, $467K puts. Tracked: up to 40 strikes around the money across 21 expirations.