OITracker Cboe delayed data

Contract OI history

Back to COST

Jun 17, 2027 EXPIRATION

COST $700.00 Put

COST270617P00700000

Latest saved OI515Oct 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 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. 5152570 2026-10-09: 455 OI2026-10-13: 455 OI2026-10-14: 455 OI2026-10-15: 455 OI2026-10-16: 454 OI2026-10-21: 515 OI2026-10-23: 515 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, 2026Viewing5150
Oct 21, 2026515+61
Oct 16, 2026454-1
Oct 15, 20264550
Oct 14, 20264550
Oct 13, 20264550
Oct 09, 2026455No prior observation