(MONEY Magazine) – After calls--and wait times--surged in December, Vanguard Group mobilized 1,600 employees, including Chairman Jack Brennan, to help answer phones. Vanguard has seen a spike in new business, but it's not alone:

>> MONEY 100 funds Dodge & Cox Stock, Fidelity Low-Priced Stock and Longleaf Partners International closed to new investors due to rising assets. T. Rowe Price High Yield will close soon.

>> American Funds broke an industry record with $65 billion in net sales last year. --ADRIENNE CARTER