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PayPal股价下跌，收购方据报放弃竞购
PayPal’s stock sinks as suitors reportedly walk away from their takeover bid
Reports of a takeover offer have propped up PayPal’s stock in recent months, but now the company may have to execute a turnaround on its own.
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