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Contract OI history

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Nov 20, 2026 EXPIRATION

IBKR $75.00 Put

IBKR261120P00075000

Latest saved OI1,161Oct 23, 2026
Last change-11vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
IBKR $75.00 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. 1,1725860 2026-10-09: 223 OI2026-10-13: 225 OI2026-10-14: 227 OI2026-10-15: 243 OI2026-10-16: 743 OI2026-10-21: 1,172 OI2026-10-23: 1,161 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, 2026Viewing1,161-11
Oct 21, 20261,172+429
Oct 16, 2026743+500
Oct 15, 2026243+16
Oct 14, 2026227+2
Oct 13, 2026225+2
Oct 09, 2026223No prior observation