精选70MarketWatch（RSS）股市
美股“七巨头”问题：万亿AI账单的回报在望
The stock market has a ‘Magnificent Seven’ problem — but not the one bears are warning about
Wall Street is terrified of a trillion-dollar AI bill — but the payoff is in sight.
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