'Stupid' Yo App Said to Be Valued at Less Than $10 Million

Even in frenzied Silicon Valley, apps that go viral have their valuation limits. Yo, which lets users send each other messages that contain only the word "yo," was valued at less than $10 million in a recent funding round, according to people familiar with the deal who requested not to be named because the terms are private.

Anything in the millions is a solid valuation for a company with no revenue and one described by co-founder Moshe Hogeg as "stupid." But it's far from the red-hot numbers that have been flying around the Valley these days. Let's not forget Facebook is paying $19 billion for WhatsApp, which lets users communicate using other words besides "yo," and Clinkle raised $25 million last year for an app no one had seen and still has yet to be made available.