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Contract OI history

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Jan 21, 2028 EXPIRATION

ROK $390.00 Call

ROK280121C00390000

Latest saved OI39Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ROK $390.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 39190 2026-10-02: 36 OI2026-10-05: 36 OI2026-10-06: 36 OI2026-10-07: 36 OI2026-10-08: 36 OI2026-10-09: 36 OI2026-10-13: 38 OI2026-10-14: 38 OI2026-10-15: 38 OI2026-10-16: 39 OI2026-10-21: 39 OI2026-10-23: 39 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, 2026390
Oct 21, 2026Viewing390
Oct 16, 202639+1
Oct 15, 2026380
Oct 14, 2026380
Oct 13, 202638+2
Oct 09, 2026360
Oct 08, 2026360
Oct 07, 2026360
Oct 06, 2026360
Oct 05, 2026360
Oct 02, 202636No prior observation