This week, the Unicorn Tracker’s biggest valuation headline was the $180 million raised by Snapchat, which, according to news reports, took its valuation to over $20 billion. It was noted by some sell-side houses on Wall Street that Snapchat has hit the 110 million-user mark in faster turnaround time than was seen with firms such as Facebook and Twitter. The tech upstart took only a year and a half to get to that level, while it took the other two companies a respective 24 quarters and 32 quarters.