At $26 a share, Twitter's valuation on IPO day will be $18 billion.
The night before Twitter will begin trading on the New York Stock Exchange, the company has set TWTR's final IPO price at $26 a share. Assuming it sells the maximum of 80.5 million shares, Twitter's IPO will raise $2.09 billion and become the second–largest Internet offering in history, second only to Facebook––but surpassing Google's $1.9 billion in 2004.