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Contract OI history

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Jan 21, 2028 EXPIRATION

BAM $40.00 Put

BAM280121P00040000

Latest saved OI108Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAM $40.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 108540 2026-10-02: 97 OI2026-10-05: 97 OI2026-10-06: 98 OI2026-10-07: 98 OI2026-10-08: 98 OI2026-10-09: 98 OI2026-10-13: 98 OI2026-10-14: 98 OI2026-10-16: 98 OI2026-10-20: 108 OI2026-10-23: 108 OI Oct 02, 2026Oct 23, 2026

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

BAM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1080
Oct 20, 2026108+10
Oct 16, 2026980
Oct 14, 2026980
Oct 13, 2026980
Oct 09, 2026980
Oct 08, 2026980
Oct 07, 2026980
Oct 06, 202698+1
Oct 05, 2026970
Oct 02, 202697No prior observation