OITracker Cboe delayed data

Contract OI history

Back to COHR

Dec 18, 2026 EXPIRATION

COHR $340.00 Put

COHR261218P00340000

Latest saved OI662Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $340.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0745370 2026-10-02: 37 OI2026-10-05: 1,074 OI2026-10-06: 639 OI2026-10-07: 663 OI2026-10-08: 663 OI2026-10-09: 662 OI2026-10-13: 662 OI2026-10-14: 662 OI2026-10-15: 662 OI2026-10-16: 662 OI2026-10-21: 662 OI2026-10-23: 662 OI Oct 02, 2026Oct 23, 2026

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

COHR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6620
Oct 21, 20266620
Oct 16, 20266620
Oct 15, 20266620
Oct 14, 20266620
Oct 13, 20266620
Oct 09, 2026662-1
Oct 08, 20266630
Oct 07, 2026663+24
Oct 06, 2026639-435
Oct 05, 20261,074+1,037
Oct 02, 202637No prior observation