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Contract OI history

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Nov 20, 2026 EXPIRATION

PANW $320.00 Put

PANW261120P00320000

Latest saved OI2,111Oct 23, 2026
Last change+89vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PANW $320.00 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. 2,1111,0550 2026-10-09: 884 OI2026-10-13: 902 OI2026-10-14: 902 OI2026-10-15: 941 OI2026-10-16: 977 OI2026-10-21: 2,022 OI2026-10-23: 2,111 OI Oct 09, 2026Oct 23, 2026

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

PANW contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20262,111+89
Oct 21, 2026Viewing2,022+1,045
Oct 16, 2026977+36
Oct 15, 2026941+39
Oct 14, 20269020
Oct 13, 2026902+18
Oct 09, 2026884No prior observation