OITracker Cboe delayed data

Contract OI history

Back to COST

Jan 15, 2027 EXPIRATION

COST $700.00 Call

COST270115C00700000

Latest saved OI386Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COST $700.00 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. 3911950 2026-10-09: 391 OI2026-10-13: 391 OI2026-10-14: 391 OI2026-10-15: 390 OI2026-10-16: 386 OI2026-10-21: 386 OI2026-10-23: 386 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, 2026Viewing3860
Oct 21, 20263860
Oct 16, 2026386-4
Oct 15, 2026390-1
Oct 14, 20263910
Oct 13, 20263910
Oct 09, 2026391No prior observation