OITracker Cboe delayed data

Contract OI history

Back to CALM

Nov 20, 2026 EXPIRATION

CALM $85.00 Call

CALM261120C00085000

Latest saved OI255Oct 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 $85.00 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. 2611300 2026-10-08: 261 OI2026-10-09: 260 OI2026-10-13: 255 OI2026-10-14: 255 OI2026-10-16: 255 OI2026-10-20: 255 OI2026-10-23: 255 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, 2026Viewing2550
Oct 20, 20262550
Oct 16, 20262550
Oct 14, 20262550
Oct 13, 2026255-5
Oct 09, 2026260-1
Oct 08, 2026261No prior observation