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Contract OI history

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Jan 15, 2027 EXPIRATION

BSM $15.00 Put

BSM270115P00015000

Latest saved OI1,326Oct 23, 2026
Last change+220vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSM $15.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,3266630 2026-10-02: 987 OI2026-10-05: 994 OI2026-10-07: 994 OI2026-10-08: 999 OI2026-10-09: 999 OI2026-10-13: 999 OI2026-10-14: 999 OI2026-10-16: 1,106 OI2026-10-20: 1,106 OI2026-10-23: 1,326 OI Oct 02, 2026Oct 23, 2026

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

BSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,326+220
Oct 20, 20261,1060
Oct 16, 20261,106+107
Oct 14, 20269990
Oct 13, 20269990
Oct 09, 20269990
Oct 08, 2026999+5
Oct 07, 20269940
Oct 05, 2026994+7
Oct 02, 2026987No prior observation