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Contract OI history

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Apr 16, 2027 EXPIRATION

BMA $55.00 Put

BMA270416P00055000

Latest saved OI43Oct 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
BMA $55.00 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. 43210 2026-10-02: 2 OI2026-10-05: 2 OI2026-10-06: 2 OI2026-10-07: 2 OI2026-10-08: 2 OI2026-10-09: 3 OI2026-10-13: 34 OI2026-10-14: 35 OI2026-10-16: 37 OI2026-10-21: 42 OI2026-10-23: 43 OI Oct 02, 2026Oct 23, 2026

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

BMA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing43+1
Oct 21, 202642+5
Oct 16, 202637+2
Oct 14, 202635+1
Oct 13, 202634+31
Oct 09, 20263+1
Oct 08, 202620
Oct 07, 202620
Oct 06, 202620
Oct 05, 202620
Oct 02, 20262No prior observation