The shares jumped $17.50, or 56 percent, to $48.50 in morning trading. Earlier, the company sold 5 million shares for $31 each and total proceeds of $155 million. Certain shareholders sold an additional 3.2 million shares at the same price for $99.2 million.
The shares are trading under the symbol "DATA."
The offering's underwriters — Goldman, Sachs & Co. and Morgan Stanley & Co. — have a 30-day option to buy up to 1.2 million more shares from Tableau, which would generate $38.1 million more in proceeds.