OITracker Cboe delayed data

Contract OI history

Back to ETD

May 21, 2027 EXPIRATION

ETD $22.50 Call

ETD270521C00022500

Latest saved OI551Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ETD $22.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5512750 2026-10-02: 2 OI2026-10-05: 2 OI2026-10-06: 2 OI2026-10-07: 550 OI2026-10-09: 550 OI2026-10-13: 550 OI2026-10-14: 551 OI2026-10-16: 551 OI2026-10-20: 551 OI2026-10-23: 551 OI Oct 02, 2026Oct 23, 2026

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

ETD contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5510
Oct 20, 20265510
Oct 16, 20265510
Oct 14, 2026551+1
Oct 13, 20265500
Oct 09, 20265500
Oct 07, 2026550+548
Oct 06, 202620
Oct 05, 202620
Oct 02, 20262No prior observation