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Contract OI history

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Dec 18, 2026 EXPIRATION

ERAS $15.00 Put

ERAS261218P00015000

Latest saved OI2,519Oct 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 $15.00 put open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2,5191,2590 2026-10-08: 2,483 OI2026-10-09: 2,462 OI2026-10-13: 2,462 OI2026-10-14: 2,462 OI2026-10-15: 2,519 OI2026-10-16: 2,519 OI2026-10-21: 2,519 OI2026-10-23: 2,519 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, 2026Viewing2,5190
Oct 21, 20262,5190
Oct 16, 20262,5190
Oct 15, 20262,519+57
Oct 14, 20262,4620
Oct 13, 20262,4620
Oct 09, 20262,462-21
Oct 08, 20262,483No prior observation