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Contract OI history

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Jun 17, 2027 EXPIRATION

COHR $240.00 Put

COHR270617P00240000

Latest saved OI500Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $240.00 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. 5002500 2026-10-02: 235 OI2026-10-05: 235 OI2026-10-06: 235 OI2026-10-07: 235 OI2026-10-08: 235 OI2026-10-09: 485 OI2026-10-13: 486 OI2026-10-14: 486 OI2026-10-15: 487 OI2026-10-16: 488 OI2026-10-21: 498 OI2026-10-23: 500 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, 2026Viewing500+2
Oct 21, 2026498+10
Oct 16, 2026488+1
Oct 15, 2026487+1
Oct 14, 20264860
Oct 13, 2026486+1
Oct 09, 2026485+250
Oct 08, 20262350
Oct 07, 20262350
Oct 06, 20262350
Oct 05, 20262350
Oct 02, 2026235No prior observation