精选70MarketWatch（RSS）股市
美企1万亿回购潮背后，内部人却在减持
Corporate America is pumping $1 trillion into stock buybacks — but look at what insiders are doing
These 22 U.S. stocks are backed by company buybacks and insider cash.
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