| Clear Sky Advisers, LLC | 150,000 | $5,803,500 | 1.86% |
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| Quaero Capital S.A. | 51,029 | $1,974,312 | 1.52% |
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| HUSSMAN STRATEGIC ADVISORS, INC. | 156,500 | $6,054,985 | 1.11% |
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| Robotti & Company | 169,586 | $6,561,282 | 1.06% |
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| Guinness Asset Management LTD | 1,055,110 | $40,783,398 | 0.95% |
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| Green Alpha Advisors, LLC | 34,416 | $1,331,555 | 0.87% |
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| Guinness Atkinson Asset Management Inc | 35,029 | $1,355,272 | 0.72% |
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| Summit Place Financial Advisors, LLC | 18,113 | $700,792 | 0.45% |
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| Waterfront Wealth Inc. | 38,604 | $1,453,051 | 0.43% |
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| Yorktown Management & Research Co Inc | 9,900 | $383,031 | 0.41% |
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| Handelsbanken Fonder AB | 1,859,689 | $71,951 | 0.39% |
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| North Growth Management Ltd. | 45,000 | $1,732 | 0.36% |
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| Nebula Research & Development LLC | 11,322 | $438,048 | 0.33% |
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| Grantham, Mayo, Van Otterloo & Co. LLC | 1,581,182 | $61,175,932 | 0.28% |
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| EMG Holdings, L.P. | 30,000 | $1,160,700 | 0.27% |
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| Counterpoint Mutual Funds LLC | 6,247 | $241,696 | 0.22% |
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| Granahan Investment Management | 175,595 | $6,793,771 | 0.21% |
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| INCEPTIONR LLC | 9,641 | $373,010 | 0.20% |
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| NAVELLIER & ASSOCIATES INC | 25,484 | $985,976 | 0.19% |
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| FOX RUN MANAGEMENT, L.L.C. | 16,126 | $623,915 | 0.18% |
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