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Contract OI history

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Jan 15, 2027 EXPIRATION

IBKR $77.50 Put

IBKR270115P00077500

Latest saved OI168Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
IBKR $77.50 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. 170850 2026-10-09: 145 OI2026-10-13: 152 OI2026-10-14: 153 OI2026-10-15: 155 OI2026-10-16: 155 OI2026-10-21: 170 OI2026-10-23: 168 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, 2026Viewing168-2
Oct 21, 2026170+15
Oct 16, 20261550
Oct 15, 2026155+2
Oct 14, 2026153+1
Oct 13, 2026152+7
Oct 09, 2026145No prior observation