OITracker Cboe delayed data

Contract OI history

Back to MARA

Nov 20, 2026 EXPIRATION

MARA $8.50 Put

MARA261120P00008500

Latest saved OI647Oct 23, 2026
Last change+462vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
MARA $8.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 6473230 2026-10-21: 185 OI2026-10-23: 647 OI Oct 21, 2026Oct 23, 2026

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

MARA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing647+462
Oct 21, 2026185No prior observation