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Contract OI history

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Jan 21, 2028 EXPIRATION

IBKR $75.00 Put

IBKR280121P00075000

Latest saved OI207Oct 23, 2026
Last change0vs 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. 2071030 2026-10-09: 196 OI2026-10-13: 196 OI2026-10-14: 206 OI2026-10-15: 204 OI2026-10-16: 206 OI2026-10-21: 207 OI2026-10-23: 207 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, 2026Viewing2070
Oct 21, 2026207+1
Oct 16, 2026206+2
Oct 15, 2026204-2
Oct 14, 2026206+10
Oct 13, 20261960
Oct 09, 2026196No prior observation