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Contract OI history

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Dec 18, 2026 EXPIRATION

BTI $50.00 Put

BTI261218P00050000

Latest saved OI1,141Oct 23, 2026
Last change+16vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BTI $50.00 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. 1,3076530 2026-10-02: 1,273 OI2026-10-05: 1,305 OI2026-10-06: 1,306 OI2026-10-07: 1,307 OI2026-10-09: 1,275 OI2026-10-13: 1,195 OI2026-10-15: 1,167 OI2026-10-16: 1,150 OI2026-10-21: 1,125 OI2026-10-23: 1,141 OI Oct 02, 2026Oct 23, 2026

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

BTI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,141+16
Oct 21, 20261,125-25
Oct 16, 20261,150-17
Oct 15, 20261,167-28
Oct 13, 20261,195-80
Oct 09, 20261,275-32
Oct 07, 20261,307+1
Oct 06, 20261,306+1
Oct 05, 20261,305+32
Oct 02, 20261,273No prior observation