For tech stocks, “the main thing is yields,” Essaye said. Anastasia Vlasova/Getty Images For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. Perpetrators of such fraud use various marketing techniques to attract subscribers on their social media channels. The picture was mixed overseas. Hong Kong’s Hang Seng Index fell 1.6%, under pressure from U.S. regulatory scrutiny on New York-listed Chinese companies. Stocks were more buoyant in Europe, where Frankfurt’s DAX surged 1.4%.
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