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Contract OI history

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Nov 20, 2026 EXPIRATION

BAM $42.50 Put

BAM261120P00042500

Latest saved OI645Oct 23, 2026
Last change+1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAM $42.50 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. 6453220 2026-10-02: 272 OI2026-10-05: 356 OI2026-10-06: 362 OI2026-10-07: 368 OI2026-10-08: 371 OI2026-10-09: 400 OI2026-10-13: 455 OI2026-10-14: 514 OI2026-10-16: 562 OI2026-10-20: 644 OI2026-10-23: 645 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, 2026Viewing645+1
Oct 20, 2026644+82
Oct 16, 2026562+48
Oct 14, 2026514+59
Oct 13, 2026455+55
Oct 09, 2026400+29
Oct 08, 2026371+3
Oct 07, 2026368+6
Oct 06, 2026362+6
Oct 05, 2026356+84
Oct 02, 2026272No prior observation