OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BMRN $55.00 Call

BMRN261120C00055000

Latest saved OI1,086Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BMRN $55.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,0865430 2026-10-09: 95 OI2026-10-13: 96 OI2026-10-14: 102 OI2026-10-15: 102 OI2026-10-16: 100 OI2026-10-21: 1,083 OI2026-10-23: 1,086 OI Oct 09, 2026Oct 23, 2026

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

BMRN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,086+3
Oct 21, 20261,083+983
Oct 16, 2026100-2
Oct 15, 20261020
Oct 14, 2026102+6
Oct 13, 202696+1
Oct 09, 202695No prior observation