OITracker Cboe delayed data

Contract OI history

Back to COST

Nov 20, 2026 EXPIRATION

COST $950.00 Call

COST261120C00950000

Latest saved OI418Oct 23, 2026
Last change-30vs 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. 4702350 2026-10-09: 371 OI2026-10-13: 470 OI2026-10-14: 470 OI2026-10-15: 448 OI2026-10-16: 451 OI2026-10-21: 448 OI2026-10-23: 418 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, 2026Viewing418-30
Oct 21, 2026448-3
Oct 16, 2026451+3
Oct 15, 2026448-22
Oct 14, 20264700
Oct 13, 2026470+99
Oct 09, 2026371No prior observation