Automated Trading Desk, or ATD, has landed $60 million in investment from Technology Crossover Ventures.

Privately held ATD, which was launched 18 years ago, provides automated stock-trading technology. It operates from a 16-acre campus near Charleston, S.C.

Despite the size of the investment, ATD’s existing stockholders will retain control of the firm. Its management team also will remain in place.

The funds will be used to expand the company’s retail, options and institutional execution businesses as well as provide funds for existing shareholders.

ATD’s growing business included handling 7 percent of New York Stock Exchange and 7 percent of NASDAQ trading, or some 280 million shares per day, in November.

“The financial services market continues to realize ATD’s compelling strategic value and recognizes our ability to routinely outperform our peer group in quality of execution, as our market share and daily trading volume significantly increases,” said Steve Swanson, ATD’s chief executive officer, in a statement. “The deal with TCV will help further fuel the strategic growth of ATD’s businesses through a trusted, reputable capital partner.”

ATD also plans to work with TCV’s investment team to better exploit opportunities in the equity markets, ATD said.

"We really do view them as more than just a capital partner," Swanson told The Post and Courier in nearby Charleston. "They are going to help us grow our business." Swanson, a co-founder of the firm, also told the newspaper that ATD had been in negotiations with six different private equity firms.

ATD has acknowledged being profitable but does not disclose its finances.

“ATD is a tremendous company, led by a great management team,” said Robert Trudeau, a general partner at TCV. “We are excited by this strategic partnership as the market continues to offer significant opportunities for innovative,
technology-driven financial services companies.”

As part of the investment, Trudeau will join the ATD board of directors.

ATD has designed automated systems that improve sales execution, reducing time and cutting costs.

Technology Crossover Ventures has $4.7 billion under management and has invested in such firms as CNET, eHarmony, Netflix and RealNetworks.