OITracker Cboe delayed data

Contract OI history

Back to SIRI

Oct 23, 2026 EXPIRATION

SIRI $27.50 Call

SIRI261023C00027500

Latest saved OI163Oct 23, 2026
Last change+5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SIRI $27.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 163810 2026-10-09: 35 OI2026-10-13: 42 OI2026-10-14: 42 OI2026-10-15: 52 OI2026-10-16: 100 OI2026-10-21: 158 OI2026-10-23: 163 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, 2026Viewing163+5
Oct 21, 2026158+58
Oct 16, 2026100+48
Oct 15, 202652+10
Oct 14, 2026420
Oct 13, 202642+7
Oct 09, 202635No prior observation