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Contract OI history

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Nov 20, 2026 EXPIRATION

ROK $420.00 Put

ROK261120P00420000

Latest saved OI356Oct 23, 2026
Last change+67vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ROK $420.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3561780 2026-10-02: 43 OI2026-10-05: 44 OI2026-10-06: 44 OI2026-10-07: 44 OI2026-10-08: 45 OI2026-10-09: 45 OI2026-10-13: 288 OI2026-10-14: 288 OI2026-10-15: 288 OI2026-10-16: 288 OI2026-10-21: 289 OI2026-10-23: 356 OI Oct 02, 2026Oct 23, 2026

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

ROK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026356+67
Oct 21, 2026Viewing289+1
Oct 16, 20262880
Oct 15, 20262880
Oct 14, 20262880
Oct 13, 2026288+243
Oct 09, 2026450
Oct 08, 202645+1
Oct 07, 2026440
Oct 06, 2026440
Oct 05, 202644+1
Oct 02, 202643No prior observation