OITracker Cboe delayed data

Contract OI history

Back to CALM

Jan 21, 2028 EXPIRATION

CALM $70.00 Call

CALM280121C00070000

Latest saved OI16Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CALM $70.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1680 2026-10-08: 2 OI2026-10-09: 2 OI2026-10-13: 2 OI2026-10-14: 2 OI2026-10-16: 3 OI2026-10-20: 16 OI2026-10-23: 16 OI Oct 08, 2026Oct 23, 2026

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

CALM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing160
Oct 20, 202616+13
Oct 16, 20263+1
Oct 14, 202620
Oct 13, 202620
Oct 09, 202620
Oct 08, 20262No prior observation