How far Yahoo fellAt the time, Forbes called it the saddest $5 billion deal in tech history, noting Yahoo was once worth $125 billion. So what went wrong for Yahoo? But successful technology companies make good acquisitions, they don’t make a habit of making inconsequential or disastrous acquisitions. Google went on to become a trillion dollar company. Yes, Yahoo had $1.1 billion for Tumblr but didn’t have $1.1 billion for Facebook or $1 billion for Google.