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Contract OI history

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Dec 17, 2027 EXPIRATION

AAPL $400.00 Put

AAPL271217P00400000

Latest saved OI646Oct 23, 2026
Last change+31vs previous saved observation
Saved market days8Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
AAPL $400.00 put open interest history 8 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6463230 2026-10-02: 118 OI2026-10-09: 119 OI2026-10-13: 119 OI2026-10-14: 119 OI2026-10-15: 118 OI2026-10-16: 118 OI2026-10-21: 615 OI2026-10-23: 646 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

AAPL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing646+31
Oct 21, 2026615+497
Oct 16, 20261180
Oct 15, 2026118-1
Oct 14, 20261190
Oct 13, 20261190
Oct 09, 2026119+1
Oct 02, 2026118No prior observation