Twitter shares drop 19 percent after reporting declining monthly active users

Twitter shares plummeted 19 percent Friday after the company reported a decline in monthly active users and weak guidance. Twitter reported second-quarter earnings before the bell on Friday:

• Earnings per share: 17 cents vs. 17 cents, according to a Thomson Reuters consensus estimate
• Revenue: $711 million vs. $696.2 million, according to a Thomson Reuters consensus estimate
• Monthly active users (MAUs): 335 million vs. 338.5 million, according to StreetAccount and FactSet estimate

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