For the stock: This is Facebook monetizing its $22 billion acquisition of WhatsApp. Mark Zuckerberg has been patient with WhatsApp, allowing it to focus on growing its user base from about 400 million when Facebook acquired it to over 1 billion users today. Now, in Facebook’s view, is the time to turn on the money tap (this isn’t a surprise for investors: Facebook outlined plans to start monetizing its messaging services earlier this year). Facebook’s stock price is likely already reflecting some future revenue from its messaging services – the question is how successful its efforts will be.
The bigger picture: Facebook isn’t exactly a pioneer in the messaging space.