| Date | Open | Close | Volume |
| 2010-03-03 | 1.10 | 1.08 | 173400 |
| 2010-03-02 | 0.91 | 1.10 | 187500 |
| 2010-03-01 | 0.88 | 0.90 | 85500 |
| 2010-02-26 | 0.88 | 0.90 | 83900 |
| 2010-02-25 | 0.94 | 0.88 | 439200 |
| 2010-02-24 | 0.98 | 0.94 | 114700 |
| 2010-02-23 | 1.00 | 1.01 | 58600 |
| 2010-02-22 | 1.04 | 0.98 | 87600 |
| 2010-02-19 | 1.06 | 1.04 | 43000 |
| 2010-02-18 | 1.08 | 1.05 | 23000 |
| 2010-02-17 | 1.02 | 1.07 | 51700 |
| 2010-02-16 | 1.08 | 1.02 | 264300 |
| 2010-02-12 | 1.08 | 1.09 | 16500 |
| 2010-02-11 | 1.12 | 1.08 | 186800 |
| 2010-02-10 | 1.15 | 1.13 | 30500 |
| 2010-02-09 | 1.15 | 1.16 | 31600 |
| 2010-02-08 | 1.12 | 1.15 | 21900 |
| 2010-02-05 | 1.17 | 1.13 | 45800 |
| 2010-02-04 | 1.17 | 1.18 | 66000 |
| 2010-02-03 | 1.19 | 1.16 | 40200 |
| 2010-02-02 | 1.17 | 1.20 | 79100 |
| 2010-02-01 | 1.16 | 1.16 | 40600 |
| 2010-01-29 | 1.20 | 1.18 | 26600 |
| 2010-01-28 | 1.15 | 1.17 | 49400 |
| 2010-01-27 | 1.22 | 1.15 | 80800 |
| 2010-01-26 | 1.18 | 1.23 | 90900 |
| 2010-01-25 | 1.18 | 1.17 | 57800 |
| 2010-01-22 | 1.14 | 1.18 | 143000 |
| 2010-01-21 | 1.15 | 1.17 | 109300 |
| 2010-01-20 | 1.17 | 1.15 | 61200 |
| 2010-01-19 | 1.22 | 1.20 | 61900 |
| 2010-01-15 | 1.11 | 1.22 | 562400 |
Other Companies: 03-21-2007 | Banco de Chile | 02-17-2008
Centrais Electricas Brasileiras S.A. | 11-10-2009 | BlackRock Investment Quality Municipal Trust Inc.