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Contract OI history

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Jan 21, 2028 EXPIRATION

ET $25.00 Put

ET280121P00025000

Latest saved OI370Oct 08, 2026
Last change0vs previous saved observation
Saved market days5Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ET $25.00 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. 3701850 2026-10-02: 370 OI2026-10-05: 370 OI2026-10-06: 370 OI2026-10-07: 370 OI2026-10-08: 370 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, 2026Viewing3700
Oct 07, 20263700
Oct 06, 20263700
Oct 05, 20263700
Oct 02, 2026370No prior observation