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Contract OI history

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Nov 20, 2026 EXPIRATION

CRWD $217.50 Put

CRWD261120P00217500

Latest saved OI851Oct 23, 2026
Last change+329vs 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. 8514250 2026-10-09: 334 OI2026-10-13: 347 OI2026-10-14: 347 OI2026-10-15: 368 OI2026-10-16: 366 OI2026-10-21: 522 OI2026-10-23: 851 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, 2026Viewing851+329
Oct 21, 2026522+156
Oct 16, 2026366-2
Oct 15, 2026368+21
Oct 14, 20263470
Oct 13, 2026347+13
Oct 09, 2026334No prior observation