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Contract OI history

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Feb 19, 2027 EXPIRATION

EROC $12.50 Call

EROC270219C00012500

Latest saved OI1,303Oct 23, 2026
Last change+439vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
EROC $12.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,3036510 2026-10-02: 513 OI2026-10-05: 508 OI2026-10-06: 594 OI2026-10-07: 559 OI2026-10-09: 556 OI2026-10-13: 563 OI2026-10-14: 570 OI2026-10-16: 783 OI2026-10-20: 864 OI2026-10-23: 1,303 OI Oct 02, 2026Oct 23, 2026

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

EROC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,303+439
Oct 20, 2026864+81
Oct 16, 2026783+213
Oct 14, 2026570+7
Oct 13, 2026563+7
Oct 09, 2026556-3
Oct 07, 2026559-35
Oct 06, 2026594+86
Oct 05, 2026508-5
Oct 02, 2026513No prior observation