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Contract OI history

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Mar 19, 2027 EXPIRATION

BSX $30.00 Put

BSX270319P00030000

Latest saved OI694Oct 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 $30.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7053520 2026-10-02: 699 OI2026-10-05: 699 OI2026-10-06: 699 OI2026-10-07: 699 OI2026-10-08: 699 OI2026-10-09: 705 OI2026-10-13: 697 OI2026-10-14: 697 OI2026-10-15: 697 OI2026-10-16: 693 OI2026-10-21: 694 OI2026-10-23: 694 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, 2026Viewing6940
Oct 21, 2026694+1
Oct 16, 2026693-4
Oct 15, 20266970
Oct 14, 20266970
Oct 13, 2026697-8
Oct 09, 2026705+6
Oct 08, 20266990
Oct 07, 20266990
Oct 06, 20266990
Oct 05, 20266990
Oct 02, 2026699No prior observation