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Contract OI history

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Nov 20, 2026 EXPIRATION

ROK $350.00 Put

ROK261120P00350000

Latest saved OI53Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ROK $350.00 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. 53260 2026-10-02: 37 OI2026-10-05: 38 OI2026-10-06: 38 OI2026-10-07: 38 OI2026-10-08: 38 OI2026-10-09: 38 OI2026-10-13: 38 OI2026-10-14: 38 OI2026-10-15: 38 OI2026-10-16: 39 OI2026-10-21: 42 OI2026-10-23: 53 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, 202653+11
Oct 21, 2026Viewing42+3
Oct 16, 202639+1
Oct 15, 2026380
Oct 14, 2026380
Oct 13, 2026380
Oct 09, 2026380
Oct 08, 2026380
Oct 07, 2026380
Oct 06, 2026380
Oct 05, 202638+1
Oct 02, 202637No prior observation