OITracker Cboe delayed data

Contract OI history

Back to BSX

Jan 15, 2027 EXPIRATION

BSX $55.00 Call

BSX270115C00055000

Latest saved OI14,109Oct 23, 2026
Last change+33vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $55.00 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. 14,2107,1050 2026-10-02: 14,164 OI2026-10-05: 14,106 OI2026-10-06: 14,117 OI2026-10-07: 14,107 OI2026-10-08: 14,107 OI2026-10-09: 14,118 OI2026-10-13: 14,165 OI2026-10-14: 14,165 OI2026-10-15: 14,194 OI2026-10-16: 14,210 OI2026-10-21: 14,076 OI2026-10-23: 14,109 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, 2026Viewing14,109+33
Oct 21, 202614,076-134
Oct 16, 202614,210+16
Oct 15, 202614,194+29
Oct 14, 202614,1650
Oct 13, 202614,165+47
Oct 09, 202614,118+11
Oct 08, 202614,1070
Oct 07, 202614,107-10
Oct 06, 202614,117+11
Oct 05, 202614,106-58
Oct 02, 202614,164No prior observation