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Contract OI history

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Mar 19, 2027 EXPIRATION

BSX $55.00 Call

BSX270319C00055000

Latest saved OI1,616Oct 23, 2026
Last change-293vs 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. 1,9099540 2026-10-02: 1,044 OI2026-10-05: 1,045 OI2026-10-06: 1,046 OI2026-10-07: 1,053 OI2026-10-08: 1,053 OI2026-10-09: 1,040 OI2026-10-13: 1,284 OI2026-10-14: 1,284 OI2026-10-15: 1,290 OI2026-10-16: 1,296 OI2026-10-21: 1,909 OI2026-10-23: 1,616 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, 2026Viewing1,616-293
Oct 21, 20261,909+613
Oct 16, 20261,296+6
Oct 15, 20261,290+6
Oct 14, 20261,2840
Oct 13, 20261,284+244
Oct 09, 20261,040-13
Oct 08, 20261,0530
Oct 07, 20261,053+7
Oct 06, 20261,046+1
Oct 05, 20261,045+1
Oct 02, 20261,044No prior observation