| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Barclays Global Investors UK Holdings Ltd | 2,589,714 | 5.66 | $29,988,888 | 30-Sep-09 | | FMR LLC | 1,909,953 | 4.18 | $22,117,255 | 30-Sep-09 | | Invesco Ltd. | 1,851,291 | 4.05 | $21,437,949 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,804,759 | 3.95 | $20,899,109 | 30-Sep-09 | | WS MANAGEMENT, LLP | 1,274,730 | 2.79 | $14,761,373 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 1,239,700 | 2.71 | $14,355,726 | 30-Sep-09 | | MORGAN STANLEY | 1,000,649 | 2.19 | $11,587,515 | 30-Sep-09 | | STATE STREET CORPORATION | 893,824 | 1.95 | $10,350,481 | 30-Sep-09 | | BlackRock Group Limited | 793,053 | 1.73 | $9,183,553 | 30-Sep-09 | | BlackRock Advisors, LLC | 745,825 | 1.63 | $8,636,653 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | Powershares Exhg Traded Fd Tr-POWERSHARES WILDERHILL CLEAN E | 1,366,086 | 2.99 | $19,453,064 | 31-Jul-09 | | ISHARES RUSSELL 2000 INDEX FD | 672,543 | 1.47 | $7,788,047 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 557,397 | 1.22 | $7,887,167 | 30-Jun-09 | | VANGUARD EXPLORER FUND, INC. | 494,400 | 1.08 | $7,040,256 | 31-Jul-09 | | Claymore ETF Tr 2-Claymore/MAC Gobal Solar Energy Index ETF | 449,569 | .98 | $5,039,668 | 31-Aug-09 | | FIDELITY ADVISOR SMALL CAP FUND | 446,000 | .97 | $4,999,660 | 31-Aug-09 | | BLACKROCK FUNDS-SMALL CAP GROWTH EQUITY PORTFOLIO | 445,000 | .97 | $6,296,750 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 429,429 | .94 | $6,076,420 | 30-Jun-09 | | PENNSYLVANIA MUTUAL FUND INC | 358,200 | .78 | $5,068,530 | 30-Jun-09 | | VANGUARD SMALL-CAP GROWTH INDEX FUND | 353,174 | .77 | $4,997,412 | 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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