| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Invesco Ltd. | 2,307,889 | 2.91 | $3,531,070 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 2,035,614 | 2.57 | $3,114,489 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,911,490 | 2.41 | $2,924,579 | 30-Sep-09 | | Taconic Capital Advisors LP | 1,800,000 | 2.27 | $2,754,000 | 30-Sep-09 | | STATE STREET CORPORATION | 1,053,287 | 1.33 | $1,611,529 | 30-Sep-09 | | SHAW D.E. & CO., INC. | 627,413 | .79 | $959,941 | 30-Sep-09 | | WS CAPITAL MANAGEMENT, L.P. | 621,512 | .78 | $950,913 | 30-Sep-09 | | NORTHERN TRUST CORPORATION | 621,122 | .78 | $950,316 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 518,182 | .65 | $792,818 | 30-Sep-09 | | TIAA-CREF INVESTMENT MANAGEMENT, LLC | 345,344 | .44 | $528,376 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | Powershares Exhg Traded Fd Tr-POWERSHARES WILDERHILL CLEAN E | 5,037,098 | 6.36 | $11,283,099 | 31-Jul-09 | | ISHARES RUSSELL 2000 INDEX FD | 819,909 | 1.03 | $967,492 | 31-Oct-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 529,092 | .67 | $1,481,457 | 30-Jun-09 | | VANGUARD SMALL-CAP INDEX FUND | 509,191 | .64 | $1,425,734 | 30-Jun-09 | | ISHARES RUSSELL 2000 GROWTH INDEX FD | 384,197 | .48 | $453,352 | 31-Oct-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 345,874 | .44 | $968,447 | 30-Jun-09 | | VANGUARD SMALL-CAP GROWTH INDEX FUND | 320,456 | .40 | $897,276 | 30-Jun-09 | | COLLEGE RETIREMENT EQUITIES FUND-STOCK ACCOUNT | 263,298 | .33 | $737,234 | 30-Jun-09 | | DFA U.S. MICRO CAP SERIES | 180,102 | .23 | $403,428 | 31-Jul-09 | | Powershares Exgh Traded Fd Tr II-Pwrshs Global Clean Energy | 175,588 | .22 | $393,317 | 31-Jul-09 |
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Value shown is computed using the security's price on the report date given.
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