A single investor has cost at least nine leading brokerage firms up to $15 million in losses.

His reported 4.9 percent stake is thought to be the largest position held by a single investor.

The company is being financed by a single investor, who has declined to be identified.

He was the single largest investor in the company and the head manager of this investment project.

Canadian law bars any single investor from owning more than 10 percent of a bank's shares.

Although the governance issues may not be insurmountable, another possible concern is that the federal government could become the largest single investor.

Merrill has already settled a complaint by a single investor for $400,000.

Almost the same amount of time and money would have been required to prosecute the case successfully for a single investor.

A 24-year-old single investor might go for a big return with options or commodities.

The new fund will have a single investor - him.