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Contract OI history

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Dec 18, 2026 EXPIRATION

SPXC $165.00 Put

SPXC261218P00165000

Latest saved OI139Oct 23, 2026
Last change+50vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SPXC $165.00 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. 139690 2026-10-02: 76 OI2026-10-05: 76 OI2026-10-06: 87 OI2026-10-07: 87 OI2026-10-08: 87 OI2026-10-09: 87 OI2026-10-13: 87 OI2026-10-14: 87 OI2026-10-15: 87 OI2026-10-16: 89 OI2026-10-21: 89 OI2026-10-23: 139 OI Oct 02, 2026Oct 23, 2026

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

SPXC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026139+50
Oct 21, 2026Viewing890
Oct 16, 202689+2
Oct 15, 2026870
Oct 14, 2026870
Oct 13, 2026870
Oct 09, 2026870
Oct 08, 2026870
Oct 07, 2026870
Oct 06, 202687+11
Oct 05, 2026760
Oct 02, 202676No prior observation