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Contract OI history

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Nov 20, 2026 EXPIRATION

ECO $55.00 Put

ECO261120P00055000

Latest saved OI1,095Oct 23, 2026
Last change+127vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ECO $55.00 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. 1,0955470 2026-10-02: 70 OI2026-10-05: 70 OI2026-10-06: 70 OI2026-10-07: 70 OI2026-10-08: 70 OI2026-10-09: 69 OI2026-10-13: 169 OI2026-10-14: 218 OI2026-10-16: 664 OI2026-10-21: 968 OI2026-10-23: 1,095 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, 2026Viewing1,095+127
Oct 21, 2026968+304
Oct 16, 2026664+446
Oct 14, 2026218+49
Oct 13, 2026169+100
Oct 09, 202669-1
Oct 08, 2026700
Oct 07, 2026700
Oct 06, 2026700
Oct 05, 2026700
Oct 02, 202670No prior observation