The xStocks Hackathon: Market Open is a three-day builder-focused Hacker House bringing together EVM developers to create applications for xStocks, a framework for tokenized equities developed through a partnership between Kraken and Backed. Participants compete across three tracks: Borrow/Lend, Frontend, and Strategy, with a $75,000 prize pool. The event takes place within walking distance of the EthCC conference and is limited to 10 teams of up to six participants each.