OITracker Cboe delayed data

Contract OI history

Back to COST

Jan 15, 2027 EXPIRATION

COST $950.00 Call

COST270115C00950000

Latest saved OI607Oct 23, 2026
Last change-17vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COST $950.00 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. 6403200 2026-10-09: 640 OI2026-10-13: 640 OI2026-10-14: 640 OI2026-10-15: 631 OI2026-10-16: 624 OI2026-10-21: 624 OI2026-10-23: 607 OI Oct 09, 2026Oct 23, 2026

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

COST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing607-17
Oct 21, 20266240
Oct 16, 2026624-7
Oct 15, 2026631-9
Oct 14, 20266400
Oct 13, 20266400
Oct 09, 2026640No prior observation