加密数字货币交易所Kraken的业务范围已经突破加密货币资产，通过券商合作伙伴关系进入美国股票和ETFs的交易领域。

Core Insights - Kraken has expanded its business beyond cryptocurrency assets into trading U.S. stocks and ETFs through broker partnerships [1] Company Summary - Kraken is a cryptocurrency exchange that has diversified its offerings by entering the U.S. stock and ETF trading market [1]