"We leg into a stock, or buy our position directly from a shareholder when possible," says Corbett. "We don't want to rock the boat." Corbett sells his stocks when they don't meet management's expectations or when a company outgrows its micro-cap status. For example, the fund bought Tractor Supply Company ( TSCO) when its market cap was under $400 million and sold it when it broke $1 billion. When he speaks about his Tractor Supply experience, Corbett sounds like a parent who watched a child develop before heading off to college. He says that feeling of entrepreneurialism and growth is what attracts him to the micro-cap world. "Small business is what this country is all about," says Corbett. "Meeting guys that created multimillion dollar businesses in their garages and watching them grow is pretty cool."