Netezza Corp. (NYSE:NZ) shares are up 11% after the computer equipment maker reported that it swung to a first-quarter profit of $2.1 million, or $0.03 per share, versus a loss of $3.4 million, or $0.44 per share, a year earlier. The results beat Wall Street’s expectation of earning $0.02 per share.

The Framingham, Mass.-based firm’s quarterly revenue grew 57% to $39.6 million from $25.3 million a year ago. The revenue results also beat Wall Street’s expectation, which was $36.2 million.

Netezza also raised its 2009 revenue outlook to $172 million from a previous range of $165 million to $168 million. Wall Street analysts, on average, expect $166.7 million in revenue.

In Thursday afternoon trading, NZ shares are up 11.57%, or $1.36, to $13.11. For detailed price information and recent news stories about Netezza, click NZ.