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Contract OI history

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Dec 18, 2026 EXPIRATION

BTU $18.00 Put

BTU261218P00018000

Latest saved OI1,368Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BTU $18.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,3696840 2026-10-02: 1,288 OI2026-10-05: 1,288 OI2026-10-06: 1,293 OI2026-10-07: 1,366 OI2026-10-08: 1,365 OI2026-10-09: 1,369 OI2026-10-13: 1,369 OI2026-10-14: 1,369 OI2026-10-15: 1,366 OI2026-10-16: 1,366 OI2026-10-20: 1,368 OI2026-10-23: 1,368 OI Oct 02, 2026Oct 23, 2026

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

BTU contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,3680
Oct 20, 20261,368+2
Oct 16, 20261,3660
Oct 15, 20261,366-3
Oct 14, 20261,3690
Oct 13, 20261,3690
Oct 09, 20261,369+4
Oct 08, 20261,365-1
Oct 07, 20261,366+73
Oct 06, 20261,293+5
Oct 05, 20261,2880
Oct 02, 20261,288No prior observation