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Contract OI history

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Oct 23, 2026 EXPIRATION

ET $17.50 Put

ET261023P00017500

Latest saved OI27Oct 08, 2026
Last change-2vs previous saved observation
Saved market days5Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ET $17.50 put open interest history 5 saved observations from 2026-10-02 to 2026-10-08. Exact values and changes are listed in the table below. 29140 2026-10-02: 1 OI2026-10-05: 29 OI2026-10-06: 29 OI2026-10-07: 29 OI2026-10-08: 27 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, 2026Viewing27-2
Oct 07, 2026290
Oct 06, 2026290
Oct 05, 202629+28
Oct 02, 20261No prior observation