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Contract OI history

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Oct 30, 2026 EXPIRATION

BTU $20.50 Put

BTU261030P00020500

Latest saved OI16Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BTU $20.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1680 2026-10-09: 0 OI2026-10-13: 5 OI2026-10-14: 5 OI2026-10-15: 5 OI2026-10-16: 5 OI2026-10-20: 16 OI2026-10-23: 16 OI Oct 09, 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, 2026Viewing160
Oct 20, 202616+11
Oct 16, 202650
Oct 15, 202650
Oct 14, 202650
Oct 13, 20265+5
Oct 09, 20260No prior observation