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Contract OI history

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Nov 20, 2026 EXPIRATION

CASY $540.00 Put

CASY261120P00540000

Latest saved OI217Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CASY $540.00 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. 2251120 2026-10-09: 220 OI2026-10-13: 225 OI2026-10-14: 225 OI2026-10-15: 225 OI2026-10-16: 217 OI2026-10-21: 217 OI2026-10-23: 217 OI Oct 09, 2026Oct 23, 2026

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

CASY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2170
Oct 21, 20262170
Oct 16, 2026217-8
Oct 15, 20262250
Oct 14, 20262250
Oct 13, 2026225+5
Oct 09, 2026220No prior observation