精选70The Block（RSS）股市多源精选 ×4
Ark Invest 买入 SpaceX，减持 Block 等
Ark Invest buys $12 million in SpaceX as it trims Block, Bullish and Robinhood holdings
The firm sold $2.3 million worth of Block Inc. shares, $1.6 million worth of Bullish, and $4 million worth of Robinhood.
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力