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Contract OI history

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Jan 21, 2028 EXPIRATION

BSX $65.00 Call

BSX280121C00065000

Latest saved OI9,064Oct 23, 2026
Last change+118vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $65.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 9,0644,5320 2026-10-02: 3,968 OI2026-10-05: 3,969 OI2026-10-06: 3,970 OI2026-10-07: 3,971 OI2026-10-08: 3,971 OI2026-10-09: 8,963 OI2026-10-13: 8,945 OI2026-10-14: 8,945 OI2026-10-15: 8,953 OI2026-10-16: 8,949 OI2026-10-21: 8,946 OI2026-10-23: 9,064 OI Oct 02, 2026Oct 23, 2026

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

BSX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing9,064+118
Oct 21, 20268,946-3
Oct 16, 20268,949-4
Oct 15, 20268,953+8
Oct 14, 20268,9450
Oct 13, 20268,945-18
Oct 09, 20268,963+4,992
Oct 08, 20263,9710
Oct 07, 20263,971+1
Oct 06, 20263,970+1
Oct 05, 20263,969+1
Oct 02, 20263,968No prior observation