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Contract OI history

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Nov 20, 2026 EXPIRATION

OBIO $5.00 Put

OBIO261120P00005000

Latest saved OI239Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
OBIO $5.00 put open interest history 7 saved observations from 2026-10-07 to 2026-10-23. Exact values and changes are listed in the table below. 2391190 2026-10-07: 238 OI2026-10-09: 238 OI2026-10-13: 239 OI2026-10-14: 239 OI2026-10-16: 239 OI2026-10-20: 239 OI2026-10-23: 239 OI Oct 07, 2026Oct 23, 2026

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

OBIO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20262390
Oct 20, 2026Viewing2390
Oct 16, 20262390
Oct 14, 20262390
Oct 13, 2026239+1
Oct 09, 20262380
Oct 07, 2026238No prior observation