Bogle Unexpectedly Departs Numeric Investors

John C. Bogle Jr. has suddenly left N/I Numeric Investors, the quantitative mutual fund house in Cambridge, Mass., which he helped build by putting his star-studded name behind the firm to help grow its assets.

Lynn Wickwire, marketing director of mutual funds for N/I Numeric, wouldn't say why Bogle, the oft-quoted son of the Vanguard Group's senior chairman, Jack Bogle, left the firm. He would only say it was a recent development.

"It just worked out that John left Numeric very recently," Wickwire says. "As recently as this week. I'm not going to go beyond the release." ...