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Contract OI history

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Nov 20, 2026 EXPIRATION

ECO $35.00 Put

ECO261120P00035000

Latest saved OI666Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ECO $35.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6663330 2026-10-02: 3 OI2026-10-05: 3 OI2026-10-06: 203 OI2026-10-07: 203 OI2026-10-08: 329 OI2026-10-09: 556 OI2026-10-13: 666 OI2026-10-14: 666 OI2026-10-16: 666 OI2026-10-21: 666 OI2026-10-23: 666 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ECO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6660
Oct 21, 20266660
Oct 16, 20266660
Oct 14, 20266660
Oct 13, 2026666+110
Oct 09, 2026556+227
Oct 08, 2026329+126
Oct 07, 20262030
Oct 06, 2026203+200
Oct 05, 202630
Oct 02, 20263No prior observation