Holding/activity history for Valero Energy (VLO)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price |
| 2011 Q3 | 0 | 0 | Sell 100.00% | 1.85 | |
| 2011 Q2 | 1,381,300 | 1.85 | Add 40.89% | 0.54 | $25.57 |
| 2011 Q1 | 980,400 | 1.49 | Reduce 33.18% | 0.74 | $29.82 |
| 2010 Q4 | 1,467,200 | 1.82 | Reduce 15.70% | 0.34 | $23.12 |
| 2010 Q3 | 1,740,500 | 1.73 | Reduce 5.72% | 0.10 | $17.51 |
| 2010 Q2 | 1,846,100 | 2.04 | Reduce 44.47% | 1.63 | $17.98 |
| 2010 Q1 | 3,324,800 | 3.07 | Add 19.57% | 0.50 | $19.70 |
| 2009 Q4 | 2,780,600 | 2.34 | Add 124.91% | 1.30 | $16.75 |
| 2009 Q3 | 1,236,300 | 1.20 | Buy | 1.20 | $19.39 |