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Contract OI history

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Mar 19, 2027 EXPIRATION

PRKS $40.00 Put

PRKS270319P00040000

Latest saved OI504Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PRKS $40.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5042520 2026-10-02: 500 OI2026-10-05: 500 OI2026-10-06: 500 OI2026-10-07: 500 OI2026-10-08: 500 OI2026-10-09: 500 OI2026-10-13: 500 OI2026-10-14: 500 OI2026-10-16: 504 OI2026-10-20: 504 OI2026-10-23: 504 OI Oct 02, 2026Oct 23, 2026

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

PRKS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5040
Oct 20, 20265040
Oct 16, 2026504+4
Oct 14, 20265000
Oct 13, 20265000
Oct 09, 20265000
Oct 08, 20265000
Oct 07, 20265000
Oct 06, 20265000
Oct 05, 20265000
Oct 02, 2026500No prior observation