OITracker Cboe delayed data

Contract OI history

Back to ET

Nov 06, 2026 EXPIRATION

ET $21.00 Call

ET261106C00021000

Latest saved OI651Oct 08, 2026
Last change+25vs previous saved observation
Saved market days5Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ET $21.00 call open interest history 5 saved observations from 2026-10-02 to 2026-10-08. Exact values and changes are listed in the table below. 6513250 2026-10-02: 467 OI2026-10-05: 593 OI2026-10-06: 624 OI2026-10-07: 626 OI2026-10-08: 651 OI Oct 02, 2026Oct 08, 2026

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

ET contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 08, 2026Viewing651+25
Oct 07, 2026626+2
Oct 06, 2026624+31
Oct 05, 2026593+126
Oct 02, 2026467No prior observation