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Contract OI history

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Nov 20, 2026 EXPIRATION

ROK $440.00 Put

ROK261120P00440000

Latest saved OI164Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ROK $440.00 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. 164820 2026-10-02: 102 OI2026-10-05: 103 OI2026-10-06: 103 OI2026-10-07: 103 OI2026-10-08: 112 OI2026-10-09: 112 OI2026-10-13: 160 OI2026-10-14: 160 OI2026-10-15: 162 OI2026-10-16: 162 OI2026-10-21: 162 OI2026-10-23: 164 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, 2026164+2
Oct 21, 2026Viewing1620
Oct 16, 20261620
Oct 15, 2026162+2
Oct 14, 20261600
Oct 13, 2026160+48
Oct 09, 20261120
Oct 08, 2026112+9
Oct 07, 20261030
Oct 06, 20261030
Oct 05, 2026103+1
Oct 02, 2026102No prior observation