DUPONT FABROS TECHNOLOGY INC

CUSIP: 26613Q106 Class: COM

RiverFront Investment Group, LLC's Holding History (CIK: 0001469751)

Note: Option positions (PUT/CALL) are excluded.

Q4 2011
Shares 148,210 Value ($000) $3,589 Avg Close — Range —
Q3 2011
Shares 162,247 Value ($000) $3,195 Avg Close — Range —
Q2 2011
Shares 188,909 Value ($000) $4,760 Avg Close — Range —
Q1 2011
Shares 185,469 Value ($000) $4,498 Avg Close — Range —
Q4 2010
Shares 630,789 Value ($000) $13,417 Avg Close — Range —