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Contract OI history

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Jan 15, 2027 EXPIRATION

CRWD $217.50 Put

CRWD270115P00217500

Latest saved OI181Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CRWD $217.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 181900 2026-10-09: 153 OI2026-10-13: 153 OI2026-10-14: 153 OI2026-10-15: 148 OI2026-10-16: 147 OI2026-10-21: 179 OI2026-10-23: 181 OI Oct 09, 2026Oct 23, 2026

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

CRWD contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing181+2
Oct 21, 2026179+32
Oct 16, 2026147-1
Oct 15, 2026148-5
Oct 14, 20261530
Oct 13, 20261530
Oct 09, 2026153No prior observation