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Contract OI history

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Jan 21, 2028 EXPIRATION

BMY $40.00 Put

BMY280121P00040000

Latest saved OI2,321Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BMY $40.00 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. 2,3211,1600 2026-10-02: 2,305 OI2026-10-05: 2,318 OI2026-10-06: 2,320 OI2026-10-07: 2,320 OI2026-10-08: 2,320 OI2026-10-09: 2,320 OI2026-10-13: 2,320 OI2026-10-14: 2,320 OI2026-10-15: 2,320 OI2026-10-16: 2,320 OI2026-10-21: 2,320 OI2026-10-23: 2,321 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BMY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,321+1
Oct 21, 20262,3200
Oct 16, 20262,3200
Oct 15, 20262,3200
Oct 14, 20262,3200
Oct 13, 20262,3200
Oct 09, 20262,3200
Oct 08, 20262,3200
Oct 07, 20262,3200
Oct 06, 20262,320+2
Oct 05, 20262,318+13
Oct 02, 20262,305No prior observation