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Contract OI history

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Mar 19, 2027 EXPIRATION

COHR $320.00 Call

COHR270319C00320000

Latest saved OI274Oct 23, 2026
Last change-14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $320.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2881440 2026-10-02: 194 OI2026-10-05: 194 OI2026-10-06: 194 OI2026-10-07: 194 OI2026-10-08: 194 OI2026-10-09: 229 OI2026-10-13: 234 OI2026-10-14: 234 OI2026-10-15: 221 OI2026-10-16: 233 OI2026-10-21: 288 OI2026-10-23: 274 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, 2026Viewing274-14
Oct 21, 2026288+55
Oct 16, 2026233+12
Oct 15, 2026221-13
Oct 14, 20262340
Oct 13, 2026234+5
Oct 09, 2026229+35
Oct 08, 20261940
Oct 07, 20261940
Oct 06, 20261940
Oct 05, 20261940
Oct 02, 2026194No prior observation