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Contract OI history

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Oct 30, 2026 EXPIRATION

SIRI $27.00 Put

SIRI261030P00027000

Latest saved OI511Oct 23, 2026
Last change+72vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SIRI $27.00 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. 5112550 2026-10-09: 138 OI2026-10-13: 426 OI2026-10-14: 426 OI2026-10-15: 436 OI2026-10-16: 435 OI2026-10-21: 439 OI2026-10-23: 511 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, 2026511+72
Oct 21, 2026Viewing439+4
Oct 16, 2026435-1
Oct 15, 2026436+10
Oct 14, 20264260
Oct 13, 2026426+288
Oct 09, 2026138No prior observation