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Contract OI history

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May 21, 2027 EXPIRATION

EROC $12.50 Call

EROC270521C00012500

Latest saved OI115Oct 23, 2026
Last change+2vs 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. 115570 2026-10-02: 60 OI2026-10-05: 63 OI2026-10-06: 70 OI2026-10-07: 101 OI2026-10-09: 101 OI2026-10-13: 103 OI2026-10-14: 108 OI2026-10-16: 113 OI2026-10-20: 113 OI2026-10-23: 115 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, 2026Viewing115+2
Oct 20, 20261130
Oct 16, 2026113+5
Oct 14, 2026108+5
Oct 13, 2026103+2
Oct 09, 20261010
Oct 07, 2026101+31
Oct 06, 202670+7
Oct 05, 202663+3
Oct 02, 202660No prior observation