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Contract OI history

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Oct 09, 2026 EXPIRATION

ET $17.50 Put

ET261009P00017500

Latest saved OI34Oct 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 $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. 34170 2026-10-02: 16 OI2026-10-05: 16 OI2026-10-06: 19 OI2026-10-07: 19 OI2026-10-08: 34 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, 2026Viewing34+15
Oct 07, 2026190
Oct 06, 202619+3
Oct 05, 2026160
Oct 02, 202616No prior observation