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Contract OI history

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Oct 16, 2026 EXPIRATION

ET $19.50 Put

ET261016P00019500

Latest saved OI1,194Oct 08, 2026
Last change+4vs previous saved observation
Saved market days5Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ET $19.50 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. 1,1945970 2026-10-02: 1,163 OI2026-10-05: 1,189 OI2026-10-06: 1,189 OI2026-10-07: 1,190 OI2026-10-08: 1,194 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, 2026Viewing1,194+4
Oct 07, 20261,190+1
Oct 06, 20261,1890
Oct 05, 20261,189+26
Oct 02, 20261,163No prior observation