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Contract OI history

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Dec 18, 2026 EXPIRATION

IBKR $80.00 Put

IBKR261218P00080000

Latest saved OI1,729Oct 23, 2026
Last change+33vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
IBKR $80.00 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. 1,7298640 2026-10-09: 1,564 OI2026-10-13: 1,568 OI2026-10-14: 1,567 OI2026-10-15: 1,644 OI2026-10-16: 1,672 OI2026-10-21: 1,696 OI2026-10-23: 1,729 OI Oct 09, 2026Oct 23, 2026

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

IBKR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,729+33
Oct 21, 20261,696+24
Oct 16, 20261,672+28
Oct 15, 20261,644+77
Oct 14, 20261,567-1
Oct 13, 20261,568+4
Oct 09, 20261,564No prior observation