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Contract OI history

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Oct 23, 2026 EXPIRATION

ET $21.50 Call

ET261023C00021500

Latest saved OI1,576Oct 08, 2026
Last change+11vs previous saved observation
Saved market days5Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ET $21.50 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. 1,5767880 2026-10-02: 1,453 OI2026-10-05: 1,489 OI2026-10-06: 1,567 OI2026-10-07: 1,565 OI2026-10-08: 1,576 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, 2026Viewing1,576+11
Oct 07, 20261,565-2
Oct 06, 20261,567+78
Oct 05, 20261,489+36
Oct 02, 20261,453No prior observation