OITracker Cboe delayed data

Contract OI history

Back to BSX

Jan 21, 2028 EXPIRATION

BSX $75.00 Call

BSX280121C00075000

Latest saved OI6,824Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $75.00 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. 6,8243,4120 2026-10-02: 6,122 OI2026-10-05: 6,124 OI2026-10-06: 6,122 OI2026-10-07: 6,122 OI2026-10-08: 6,122 OI2026-10-09: 6,125 OI2026-10-13: 6,125 OI2026-10-14: 6,125 OI2026-10-15: 6,725 OI2026-10-16: 6,725 OI2026-10-21: 6,824 OI2026-10-23: 6,824 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, 2026Viewing6,8240
Oct 21, 20266,824+99
Oct 16, 20266,7250
Oct 15, 20266,725+600
Oct 14, 20266,1250
Oct 13, 20266,1250
Oct 09, 20266,125+3
Oct 08, 20266,1220
Oct 07, 20266,1220
Oct 06, 20266,122-2
Oct 05, 20266,124+2
Oct 02, 20266,122No prior observation