OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

MAIN $64.40 Call

MAIN261218C00064400

Latest saved OI453Oct 23, 2026
Last change-3vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MAIN $64.40 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4842420 2026-10-02: 484 OI2026-10-05: 480 OI2026-10-06: 480 OI2026-10-07: 480 OI2026-10-08: 467 OI2026-10-13: 461 OI2026-10-14: 458 OI2026-10-15: 458 OI2026-10-16: 458 OI2026-10-21: 456 OI2026-10-23: 453 OI Oct 02, 2026Oct 23, 2026

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

MAIN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026453-3
Oct 21, 2026Viewing456-2
Oct 16, 20264580
Oct 15, 20264580
Oct 14, 2026458-3
Oct 13, 2026461-6
Oct 08, 2026467-13
Oct 07, 20264800
Oct 06, 20264800
Oct 05, 2026480-4
Oct 02, 2026484No prior observation