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Contract OI history

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Jan 21, 2028 EXPIRATION

IBKR $80.00 Put

IBKR280121P00080000

Latest saved OI220Oct 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 $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. 2241120 2026-10-09: 142 OI2026-10-13: 217 OI2026-10-14: 224 OI2026-10-15: 224 OI2026-10-16: 224 OI2026-10-21: 220 OI2026-10-23: 220 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, 2026Viewing2200
Oct 21, 2026220-4
Oct 16, 20262240
Oct 15, 20262240
Oct 14, 2026224+7
Oct 13, 2026217+75
Oct 09, 2026142No prior observation