OITracker Cboe delayed data

Contract OI history

Back to FLEX

Nov 20, 2026 EXPIRATION

FLEX $100.00 Call

FLEX261120C00100000

Latest saved OI3,407Oct 23, 2026
Last change+2,193vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FLEX $100.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3,4071,7030 2026-10-09: 358 OI2026-10-13: 358 OI2026-10-14: 358 OI2026-10-15: 359 OI2026-10-16: 913 OI2026-10-21: 1,214 OI2026-10-23: 3,407 OI Oct 09, 2026Oct 23, 2026

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

FLEX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,407+2,193
Oct 21, 20261,214+301
Oct 16, 2026913+554
Oct 15, 2026359+1
Oct 14, 20263580
Oct 13, 20263580
Oct 09, 2026358No prior observation