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Contract OI history

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Jan 21, 2028 EXPIRATION

BSX $22.50 Call

BSX280121C00022500

Latest saved OI264Oct 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 $22.50 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. 2641320 2026-10-02: 232 OI2026-10-05: 232 OI2026-10-06: 252 OI2026-10-07: 252 OI2026-10-08: 252 OI2026-10-09: 253 OI2026-10-13: 253 OI2026-10-14: 253 OI2026-10-15: 253 OI2026-10-16: 253 OI2026-10-21: 264 OI2026-10-23: 264 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, 2026Viewing2640
Oct 21, 2026264+11
Oct 16, 20262530
Oct 15, 20262530
Oct 14, 20262530
Oct 13, 20262530
Oct 09, 2026253+1
Oct 08, 20262520
Oct 07, 20262520
Oct 06, 2026252+20
Oct 05, 20262320
Oct 02, 2026232No prior observation