MarketWatch.com | Top Stories Follow Surging IPO activity is one of the four horsemen of a market bubble, according to this portfolio manager Strategists conclude the IPO wave doesn’t necessarily portend a dangerous market bubble — yet. https://www.marketwatch.com/story/surging-ipo-activity-is-one-of-the-fourhorsemen-of-a-market-bubble-according-to-this-portfolio-manager-35a1ab02?mod=mw_rss_topstories marketwatch.com