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Contract OI history

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Dec 18, 2026 EXPIRATION

EROC $12.50 Put

EROC261218P00012500

Latest saved OI15Oct 23, 2026
Last change0vs previous saved observation
Saved market days3Oct 16, 2026 onwards
Daily open interest Hover a point for its date and OI
EROC $12.50 put open interest history 3 saved observations from 2026-10-16 to 2026-10-23. Exact values and changes are listed in the table below. 1570 2026-10-16: 0 OI2026-10-20: 15 OI2026-10-23: 15 OI Oct 16, 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, 2026Viewing150
Oct 20, 202615+15
Oct 16, 20260No prior observation