精选75MarketWatch（RSS）股市
摩根大通：散户对期权和保证金更谨慎，科技股或承压
Retail investors have suddenly got more cautious in using options and margins. That may spell trouble for tech, says JPMorgan.
JPMorgan’s research suggests retail investors are becoming more cautious about levrerage after the market’s recent rally and this may spell trouble for the tech sector in which they have mostly focused.
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