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Contract OI history

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Dec 18, 2026 EXPIRATION

SIRI $25.00 Put

SIRI261218P00025000

Latest saved OI493Oct 23, 2026
Last change+42vs 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. 4932460 2026-10-09: 449 OI2026-10-13: 449 OI2026-10-14: 449 OI2026-10-15: 449 OI2026-10-16: 449 OI2026-10-21: 451 OI2026-10-23: 493 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, 2026Viewing493+42
Oct 21, 2026451+2
Oct 16, 20264490
Oct 15, 20264490
Oct 14, 20264490
Oct 13, 20264490
Oct 09, 2026449No prior observation