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Contract OI history

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Mar 19, 2027 EXPIRATION

BTI $50.00 Put

BTI270319P00050000

Latest saved OI318Oct 23, 2026
Last change-1vs 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. 3351670 2026-10-02: 331 OI2026-10-05: 332 OI2026-10-06: 333 OI2026-10-07: 335 OI2026-10-09: 335 OI2026-10-13: 335 OI2026-10-15: 335 OI2026-10-16: 330 OI2026-10-21: 319 OI2026-10-23: 318 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, 2026Viewing318-1
Oct 21, 2026319-11
Oct 16, 2026330-5
Oct 15, 20263350
Oct 13, 20263350
Oct 09, 20263350
Oct 07, 2026335+2
Oct 06, 2026333+1
Oct 05, 2026332+1
Oct 02, 2026331No prior observation