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Contract OI history

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Dec 18, 2026 EXPIRATION

BTU $20.00 Put

BTU261218P00020000

Latest saved OI735Oct 23, 2026
Last change+202vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BTU $20.00 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. 7353670 2026-10-02: 532 OI2026-10-05: 532 OI2026-10-06: 532 OI2026-10-07: 532 OI2026-10-08: 532 OI2026-10-09: 532 OI2026-10-13: 532 OI2026-10-14: 532 OI2026-10-15: 533 OI2026-10-16: 534 OI2026-10-20: 533 OI2026-10-23: 735 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, 2026Viewing735+202
Oct 20, 2026533-1
Oct 16, 2026534+1
Oct 15, 2026533+1
Oct 14, 20265320
Oct 13, 20265320
Oct 09, 20265320
Oct 08, 20265320
Oct 07, 20265320
Oct 06, 20265320
Oct 05, 20265320
Oct 02, 2026532No prior observation