OITracker Cboe delayed data

Contract OI history

Back to MAMA

Dec 18, 2026 EXPIRATION

MAMA $15.00 Call

MAMA261218C00015000

Latest saved OI59Oct 23, 2026
Last change+20vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
MAMA $15.00 call open interest history 6 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 59290 2026-10-08: 18 OI2026-10-13: 19 OI2026-10-14: 19 OI2026-10-16: 19 OI2026-10-20: 39 OI2026-10-23: 59 OI Oct 08, 2026Oct 23, 2026

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

MAMA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202659+20
Oct 20, 2026Viewing39+20
Oct 16, 2026190
Oct 14, 2026190
Oct 13, 202619+1
Oct 08, 202618No prior observation