This market will resolve according to the number of named typhoons (i.e., storms assigned an official name) that occur in the Northwest Pacific basin between January 1 and December 31, 2025, 11:59PM UTC, according to the official list published on the Digital Typhoon website by Japan’s National Institute of Informatics. (see: https://agora.ex.nii.ac.jp/digital-typhoon/year/wnp/2025.html.en) A “named typhoon” refers to any system officially assigned a name by the meteorological agencies responsible for the Western North Pacific basin. Only storms appearing on the 2025 list on the Digital Typhoon website will count. If there is a potential named storm that has not yet been classified by Nov 30, 11:59 PM ET, the market may remain open until January 1, 12:00 PM ET to determine if a classification was made prior to midnight.