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Contract OI history

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Nov 20, 2026 EXPIRATION

ERO $40.00 Put

ERO261120P00040000

Latest saved OI258Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ERO $40.00 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. 2601300 2026-10-02: 247 OI2026-10-05: 246 OI2026-10-06: 251 OI2026-10-07: 250 OI2026-10-08: 250 OI2026-10-09: 250 OI2026-10-13: 258 OI2026-10-14: 260 OI2026-10-16: 260 OI2026-10-20: 259 OI2026-10-23: 258 OI Oct 02, 2026Oct 23, 2026

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

ERO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing258-1
Oct 20, 2026259-1
Oct 16, 20262600
Oct 14, 2026260+2
Oct 13, 2026258+8
Oct 09, 20262500
Oct 08, 20262500
Oct 07, 2026250-1
Oct 06, 2026251+5
Oct 05, 2026246-1
Oct 02, 2026247No prior observation