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Contract OI history

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Oct 30, 2026 EXPIRATION

ET $21.50 Call

ET261030C00021500

Latest saved OI1,876Oct 08, 2026
Last change+15vs 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. 1,8769380 2026-10-02: 257 OI2026-10-05: 252 OI2026-10-06: 1,593 OI2026-10-07: 1,861 OI2026-10-08: 1,876 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, 2026Viewing1,876+15
Oct 07, 20261,861+268
Oct 06, 20261,593+1,341
Oct 05, 2026252-5
Oct 02, 2026257No prior observation