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Contract OI history

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Jan 15, 2027 EXPIRATION

COHR $390.00 Put

COHR270115P00390000

Latest saved OI135Oct 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. 147730 2026-10-02: 135 OI2026-10-05: 135 OI2026-10-06: 135 OI2026-10-07: 137 OI2026-10-08: 137 OI2026-10-09: 137 OI2026-10-13: 137 OI2026-10-14: 137 OI2026-10-15: 147 OI2026-10-16: 147 OI2026-10-21: 135 OI2026-10-23: 135 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, 2026Viewing1350
Oct 21, 2026135-12
Oct 16, 20261470
Oct 15, 2026147+10
Oct 14, 20261370
Oct 13, 20261370
Oct 09, 20261370
Oct 08, 20261370
Oct 07, 2026137+2
Oct 06, 20261350
Oct 05, 20261350
Oct 02, 2026135No prior observation