OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

MAIN $59.40 Call

MAIN261218C00059400

Latest saved OI1,438Oct 23, 2026
Last change+35vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MAIN $59.40 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. 1,4387190 2026-10-02: 1,218 OI2026-10-05: 1,220 OI2026-10-06: 1,231 OI2026-10-07: 1,243 OI2026-10-08: 1,225 OI2026-10-13: 1,258 OI2026-10-14: 1,245 OI2026-10-15: 1,223 OI2026-10-16: 1,254 OI2026-10-21: 1,403 OI2026-10-23: 1,438 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, 2026Viewing1,438+35
Oct 21, 20261,403+149
Oct 16, 20261,254+31
Oct 15, 20261,223-22
Oct 14, 20261,245-13
Oct 13, 20261,258+33
Oct 08, 20261,225-18
Oct 07, 20261,243+12
Oct 06, 20261,231+11
Oct 05, 20261,220+2
Oct 02, 20261,218No prior observation