OITracker Cboe delayed data

Contract OI history

Back to ERAS

Dec 18, 2026 EXPIRATION

ERAS $12.50 Call

ERAS261218C00012500

Latest saved OI553Oct 23, 2026
Last change0vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ERAS $12.50 call open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 5532760 2026-10-08: 550 OI2026-10-09: 550 OI2026-10-13: 553 OI2026-10-14: 553 OI2026-10-15: 553 OI2026-10-16: 553 OI2026-10-21: 553 OI2026-10-23: 553 OI Oct 08, 2026Oct 23, 2026

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

ERAS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5530
Oct 21, 20265530
Oct 16, 20265530
Oct 15, 20265530
Oct 14, 20265530
Oct 13, 2026553+3
Oct 09, 20265500
Oct 08, 2026550No prior observation