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Contract OI history

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Jan 15, 2027 EXPIRATION

TBCH $17.50 Put

TBCH270115P00017500

Latest saved OI1,000Oct 23, 2026
Last change+1,000vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
TBCH $17.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1,0005000 2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 0 OI2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 0 OI2026-10-23: 1,000 OI Oct 08, 2026Oct 23, 2026

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

TBCH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,000+1,000
Oct 21, 202600
Oct 16, 202600
Oct 15, 202600
Oct 13, 202600
Oct 09, 202600
Oct 08, 20260No prior observation