Used-car retailer CarMax (KMX) leads S&P 500 gainers today. KMX increased 8% after reporting strong quarterly results. CarMax earned 55 cents a share, beating the expectations by 8 cents per share. Here are the funds with large KMX positions at the end of March:

1. Tom Gayner – Markel Gayner Asset Management: $168 Million
2. Robert Rodriguez – FAP: $65 Million
3. Patrick McCormack – Tiger Consumer Management: $48 Million
4. Phill Gross – Adage Capital: $20 Million
5. Jeffrey Vinik – Vinik Asset Management: $17 Million
6. Charles Akre – Akre Capital: $16 Million



