AVG Technologies rings NYSE opening bell

VIDEO0:1600:16
Today's Bell Ringer, May 13

Security software company AVG Technologies rang the opening bell Wednesday at the New York Stock Exchange.

The company, which relies heavily on business and individual monthly subscribers, said its subscription revenue rose 21 percent to $81.6 million in its latest quarter.

The New York Stock Exchange.
Adam Jeffery | CNBC

Read More U.S. Global Investors rings NYSE opening bell

As of March, AVG had more than 200 million active users, the company said on its website.

Earlier this month, AVG acquired computer security company Privax in a deal worth $60 million.

Read MoreBlack Stone Minerals rings NYSE opening bell

Privax has 250,000 paying subscribers and 8 million uniquevisitors using its free Web browser proxy service, according to AVG.

Privax, the parent company of Hide My A--, specializes in consumer desktop and mobile privacy services like virtual private network encryption.