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Contract OI history

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Oct 09, 2026 EXPIRATION

ET $21.50 Call

ET261009C00021500

Latest saved OI1,705Oct 08, 2026
Last change+57vs 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. 1,7058520 2026-10-02: 1,558 OI2026-10-05: 1,563 OI2026-10-06: 1,660 OI2026-10-07: 1,648 OI2026-10-08: 1,705 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, 2026Viewing1,705+57
Oct 07, 20261,648-12
Oct 06, 20261,660+97
Oct 05, 20261,563+5
Oct 02, 20261,558No prior observation