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Contract OI history

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Jan 15, 2027 EXPIRATION

ERAS $20.00 Put

ERAS270115P00020000

Latest saved OI299Oct 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 $20.00 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. 2991490 2026-10-08: 299 OI2026-10-09: 299 OI2026-10-13: 299 OI2026-10-14: 299 OI2026-10-15: 299 OI2026-10-16: 299 OI2026-10-21: 299 OI2026-10-23: 299 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, 2026Viewing2990
Oct 21, 20262990
Oct 16, 20262990
Oct 15, 20262990
Oct 14, 20262990
Oct 13, 20262990
Oct 09, 20262990
Oct 08, 2026299No prior observation