OITracker Cboe delayed data

Contract OI history

Back to SIRI

Jan 21, 2028 EXPIRATION

SIRI $13.00 Put

SIRI280121P00013000

Latest saved OI12,629Oct 23, 2026
Last change+54vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SIRI $13.00 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. 12,6296,3140 2026-10-09: 12,430 OI2026-10-13: 12,430 OI2026-10-14: 12,430 OI2026-10-15: 12,430 OI2026-10-16: 12,471 OI2026-10-21: 12,575 OI2026-10-23: 12,629 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, 2026Viewing12,629+54
Oct 21, 202612,575+104
Oct 16, 202612,471+41
Oct 15, 202612,4300
Oct 14, 202612,4300
Oct 13, 202612,4300
Oct 09, 202612,430No prior observation