E.piphany Zooms

Shares of E.piphany Inc., a maker of software that analyzes data collected from Web sites, rose 21% after No. 1 Internet retailer Amazon.com Inc. agreed to use its software to track customer preferences. In Nasdaq trading, E.piphany shares soared $10.69 to close at $62.69 on Nasdaq, while Amazon fell $3.44 to $84.94. San Mateo, Calif.-based E.piphany first sold shares to the public Sept. 22, at $16 apiece.