OITracker Cboe delayed data

Contract OI history

Back to FOUR

Nov 20, 2026 EXPIRATION

FOUR $40.00 Call

FOUR261120C00040000

Latest saved OI589Oct 23, 2026
Last change+8vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FOUR $40.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5892940 2026-10-02: 509 OI2026-10-05: 509 OI2026-10-06: 517 OI2026-10-07: 521 OI2026-10-08: 521 OI2026-10-09: 484 OI2026-10-13: 541 OI2026-10-14: 541 OI2026-10-15: 542 OI2026-10-16: 546 OI2026-10-21: 581 OI2026-10-23: 589 OI Oct 02, 2026Oct 23, 2026

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

FOUR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing589+8
Oct 21, 2026581+35
Oct 16, 2026546+4
Oct 15, 2026542+1
Oct 14, 20265410
Oct 13, 2026541+57
Oct 09, 2026484-37
Oct 08, 20265210
Oct 07, 2026521+4
Oct 06, 2026517+8
Oct 05, 20265090
Oct 02, 2026509No prior observation