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Contract OI history

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Mar 19, 2027 EXPIRATION

FBIO $2.50 Put

FBIO270319P00002500

Latest saved OI235Oct 20, 2026
Last change+10vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FBIO $2.50 put open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 2351170 2026-10-09: 221 OI2026-10-13: 221 OI2026-10-14: 221 OI2026-10-16: 225 OI2026-10-20: 235 OI Oct 09, 2026Oct 20, 2026

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

FBIO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing235+10
Oct 16, 2026225+4
Oct 14, 20262210
Oct 13, 20262210
Oct 09, 2026221No prior observation