OITracker Cboe delayed data

Contract OI history

Back to BSX

Oct 23, 2026 EXPIRATION

BSX $44.50 Call

BSX261023C00044500

Latest saved OI763Oct 23, 2026
Last change-7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $44.50 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. 7703850 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 202 OI2026-10-07: 203 OI2026-10-08: 203 OI2026-10-09: 206 OI2026-10-13: 367 OI2026-10-14: 367 OI2026-10-15: 738 OI2026-10-16: 738 OI2026-10-21: 770 OI2026-10-23: 763 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, 2026Viewing763-7
Oct 21, 2026770+32
Oct 16, 20267380
Oct 15, 2026738+371
Oct 14, 20263670
Oct 13, 2026367+161
Oct 09, 2026206+3
Oct 08, 20262030
Oct 07, 2026203+1
Oct 06, 2026202+202
Oct 05, 202600
Oct 02, 20260No prior observation