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Contract OI history

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Mar 19, 2027 EXPIRATION

COHR $310.00 Put

COHR270319P00310000

Latest saved OI524Oct 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 $310.00 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. 5262630 2026-10-02: 485 OI2026-10-05: 485 OI2026-10-06: 490 OI2026-10-07: 490 OI2026-10-08: 490 OI2026-10-09: 519 OI2026-10-13: 522 OI2026-10-14: 522 OI2026-10-15: 526 OI2026-10-16: 526 OI2026-10-21: 524 OI2026-10-23: 524 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, 2026Viewing5240
Oct 21, 2026524-2
Oct 16, 20265260
Oct 15, 2026526+4
Oct 14, 20265220
Oct 13, 2026522+3
Oct 09, 2026519+29
Oct 08, 20264900
Oct 07, 20264900
Oct 06, 2026490+5
Oct 05, 20264850
Oct 02, 2026485No prior observation