OITracker Cboe delayed data

Contract OI history

Back to FLEX

Apr 16, 2027 EXPIRATION

FLEX $55.00 Call

FLEX270416C00055000

Latest saved OI6Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FLEX $55.00 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. 630 2026-10-09: 4 OI2026-10-13: 4 OI2026-10-14: 4 OI2026-10-15: 4 OI2026-10-16: 4 OI2026-10-21: 4 OI2026-10-23: 6 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, 2026Viewing6+2
Oct 21, 202640
Oct 16, 202640
Oct 15, 202640
Oct 14, 202640
Oct 13, 202640
Oct 09, 20264No prior observation