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Contract OI history

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Jan 21, 2028 EXPIRATION

COHR $390.00 Put

COHR280121P00390000

Latest saved OI151Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $390.00 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. 151750 2026-10-02: 149 OI2026-10-05: 150 OI2026-10-06: 150 OI2026-10-07: 150 OI2026-10-08: 150 OI2026-10-09: 151 OI2026-10-13: 151 OI2026-10-14: 151 OI2026-10-15: 151 OI2026-10-16: 151 OI2026-10-21: 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.

COHR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1510
Oct 21, 20261510
Oct 16, 20261510
Oct 15, 20261510
Oct 14, 20261510
Oct 13, 20261510
Oct 09, 2026151+1
Oct 08, 20261500
Oct 07, 20261500
Oct 06, 20261500
Oct 05, 2026150+1
Oct 02, 2026149No prior observation