| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | VANGUARD GROUP, INC. (THE) | 3,866,592 | 4.59 | $187,297,716 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 3,315,389 | 3.94 | $160,597,443 | 30-Sep-09 | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 3,199,821 | 3.80 | $154,999,329 | 30-Sep-09 | | STATE STREET CORPORATION | 2,763,095 | 3.28 | $133,844,321 | 30-Sep-09 | | TIMES SQUARE CAPITAL MANAGEMENT | 2,484,392 | 2.95 | $120,343,948 | 30-Sep-09 | | BNP PARIBAS ASSET MANAGEMENT, SAS | 1,906,822 | 2.26 | $92,366,457 | 30-Sep-09 | | Invesco Ltd. | 1,603,904 | 1.90 | $77,693,109 | 30-Sep-09 | | MUNDER CAPITAL MANAGEMENT, INC. | 1,536,497 | 1.82 | $74,427,914 | 30-Sep-09 | | DEUTSCHE BANK AKTIENGESELLSCHAFT | 1,529,060 | 1.82 | $74,067,666 | 30-Sep-09 | | FMR LLC | 1,492,696 | 1.77 | $72,306,194 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | Powershares Exhg Traded Fd Tr-Powershares QQQ Tr, Series 1 | 1,186,797 | 1.41 | $69,914,211 | 30-Sep-08 | | BARON ASSET FUND | 1,085,000 | 1.29 | $55,910,050 | 30-Jun-09 | | Munder Mid-Cap Core Growth Fund | 985,225 | 1.17 | $50,768,644 | 30-Jun-09 | | VANGUARD MID-CAP INDEX FUND | 853,722 | 1.01 | $43,992,294 | 30-Jun-09 | | VANGUARD EXPLORER FUND, INC. | 847,200 | 1.01 | $43,376,640 | 31-Jul-09 | | VANGUARD 500 INDEX FUND | 817,790 | .97 | $42,140,718 | 30-Jun-09 | | MIDCAP SPDR TRUST SERIES I | 766,879 | .91 | $45,176,841 | 30-Sep-08 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 750,785 | .89 | $38,687,951 | 30-Jun-09 | | FRANKLIN STRATEGIC SERIES-FRANKLIN FLEX CAP GROWTH FUND | 650,000 | .77 | $31,486,000 | 30-Sep-09 | | VANGUARD INSTITUTIONAL INDEX FUND-INSTITUTIONAL INDEX FD | 581,092 | .69 | $29,943,670 | 30-Jun-09 |
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Value shown is computed using the security's price on the report date given.
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