At the current price of $46.00 and 705 million fully diluted shares, Twitter has a market cap of $32.4 billion.
474,696,816 current shares
42,708,824 options
85,657,603 RSUs outstanding as of 9/30/13
116,512 convertible preferred
7,202,952 RSUs granted after 9/30/13
13,178,040 stock issued for MoPub acquisition
1,237,847 options issued for MoPub acquisition
80,300,000 stock reserved for equity compensation plans
705,098,594 Total Shares
$46.00 Current price
$32,434,535,324 Valuation
