4. Facebook IPO
After years of resisting down buyouts and mergers, Facebook finally went public in what became the biggest initial public offering in Internet history. With a share price of $38, the world's largest social network was valued at $104 billion. Things seemed on the up and up. Then disaster struck. Technical issues with the NASDAQ delayed the trading for a half hour. More technical issues followed which prevented buyers from purchasing stock. Despite a surge in the price, the shares were unable to hover above its IPO price. Despite all of that Facebook ended the first day having raised $16 billion. However, over the next three weeks, the stock price would plummet to $27, costing investors and Facebook over $40 billion. Fail? Yes, that's a fail.