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Contract OI history

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Sep 17, 2027 EXPIRATION

IBKR $65.00 Put

IBKR270917P00065000

Latest saved OI338Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
IBKR $65.00 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. 3381690 2026-10-09: 331 OI2026-10-13: 331 OI2026-10-14: 331 OI2026-10-15: 332 OI2026-10-16: 334 OI2026-10-21: 337 OI2026-10-23: 338 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, 2026Viewing338+1
Oct 21, 2026337+3
Oct 16, 2026334+2
Oct 15, 2026332+1
Oct 14, 20263310
Oct 13, 20263310
Oct 09, 2026331No prior observation