OITracker Cboe delayed data

Contract OI history

Back to ET

Nov 06, 2026 EXPIRATION

ET $20.50 Call

ET261106C00020500

Latest saved OI504Oct 08, 2026
Last change+92vs previous saved observation
Saved market days5Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ET $20.50 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. 5042520 2026-10-02: 285 OI2026-10-05: 309 OI2026-10-06: 352 OI2026-10-07: 412 OI2026-10-08: 504 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, 2026Viewing504+92
Oct 07, 2026412+60
Oct 06, 2026352+43
Oct 05, 2026309+24
Oct 02, 2026285No prior observation