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Contract OI history

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Nov 20, 2026 EXPIRATION

EROC $17.50 Call

EROC261120C00017500

Latest saved OI570Oct 23, 2026
Last change-1vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
EROC $17.50 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. 5712850 2026-10-02: 373 OI2026-10-05: 353 OI2026-10-06: 353 OI2026-10-07: 491 OI2026-10-09: 503 OI2026-10-13: 500 OI2026-10-14: 500 OI2026-10-16: 498 OI2026-10-20: 571 OI2026-10-23: 570 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, 2026Viewing570-1
Oct 20, 2026571+73
Oct 16, 2026498-2
Oct 14, 20265000
Oct 13, 2026500-3
Oct 09, 2026503+12
Oct 07, 2026491+138
Oct 06, 20263530
Oct 05, 2026353-20
Oct 02, 2026373No prior observation