OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

SIRI $25.00 Put

SIRI270115P00025000

Latest saved OI4,400Oct 23, 2026
Last change+2,889vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SIRI $25.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4,4002,2000 2026-10-09: 1,511 OI2026-10-13: 1,511 OI2026-10-14: 1,511 OI2026-10-15: 1,511 OI2026-10-16: 1,511 OI2026-10-21: 1,511 OI2026-10-23: 4,400 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

SIRI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20264,400+2,889
Oct 21, 2026Viewing1,5110
Oct 16, 20261,5110
Oct 15, 20261,5110
Oct 14, 20261,5110
Oct 13, 20261,5110
Oct 09, 20261,511No prior observation