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Contract OI history

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Dec 18, 2026 EXPIRATION

CYTK $70.00 Put

CYTK261218P00070000

Latest saved OI302Oct 23, 2026
Last change+2vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
CYTK $70.00 put open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 3021510 2026-10-15: 0 OI2026-10-16: 300 OI2026-10-21: 300 OI2026-10-23: 302 OI Oct 15, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CYTK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing302+2
Oct 21, 20263000
Oct 16, 2026300+300
Oct 15, 20260No prior observation