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Contract OI history

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Mar 19, 2027 EXPIRATION

COHR $300.00 Put

COHR270319P00300000

Latest saved OI1,190Oct 23, 2026
Last change-28vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $300.00 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. 1,2616300 2026-10-02: 642 OI2026-10-05: 646 OI2026-10-06: 780 OI2026-10-07: 780 OI2026-10-08: 780 OI2026-10-09: 1,122 OI2026-10-13: 1,250 OI2026-10-14: 1,250 OI2026-10-15: 1,248 OI2026-10-16: 1,261 OI2026-10-21: 1,218 OI2026-10-23: 1,190 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, 2026Viewing1,190-28
Oct 21, 20261,218-43
Oct 16, 20261,261+13
Oct 15, 20261,248-2
Oct 14, 20261,2500
Oct 13, 20261,250+128
Oct 09, 20261,122+342
Oct 08, 20267800
Oct 07, 20267800
Oct 06, 2026780+134
Oct 05, 2026646+4
Oct 02, 2026642No prior observation