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Contract OI history

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Dec 18, 2026 EXPIRATION

CNS $65.00 Put

CNS261218P00065000

Latest saved OI151Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CNS $65.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 151750 2026-10-02: 150 OI2026-10-05: 150 OI2026-10-06: 150 OI2026-10-07: 150 OI2026-10-08: 150 OI2026-10-09: 150 OI2026-10-13: 150 OI2026-10-14: 150 OI2026-10-16: 151 OI2026-10-20: 151 OI2026-10-23: 151 OI Oct 02, 2026Oct 23, 2026

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

CNS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1510
Oct 20, 20261510
Oct 16, 2026151+1
Oct 14, 20261500
Oct 13, 20261500
Oct 09, 20261500
Oct 08, 20261500
Oct 07, 20261500
Oct 06, 20261500
Oct 05, 20261500
Oct 02, 2026150No prior observation