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Contract OI history

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Jan 15, 2027 EXPIRATION

ET $21.00 Put

ET270115P00021000

Latest saved OI1,948Oct 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 $21.00 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. 1,9489740 2026-10-02: 1,596 OI2026-10-05: 1,897 OI2026-10-06: 1,935 OI2026-10-07: 1,946 OI2026-10-08: 1,948 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, 2026Viewing1,948+2
Oct 07, 20261,946+11
Oct 06, 20261,935+38
Oct 05, 20261,897+301
Oct 02, 20261,596No prior observation