DUPONT FABROS TECHNOLOGY INC

CUSIP: 26613Q106 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2017
Shares 1,896 Value ($000) $116 Avg Close — Range —
Q1 2016
Shares 3,900 Value ($000) $158 Avg Close — Range —
Q3 2015
Shares 1,100 Value ($000) $28 Avg Close — Range —
Q2 2015
Shares 5,500 Value ($000) $162 Avg Close — Range —
Q1 2015
Shares 4,600 Value ($000) $150 Avg Close — Range —
Q4 2014
Shares 1,400 Value ($000) $47 Avg Close — Range —
Q3 2014
Shares 121 Value ($000) $3 Avg Close — Range —
Q2 2014
Shares 2,921 Value ($000) $79 Avg Close — Range —
Q1 2014
Shares 3,521 Value ($000) $85 Avg Close — Range —
Q4 2013
Shares 271 Value ($000) $7 Avg Close — Range —
Q3 2013
Shares 2,582 Value ($000) $67 Avg Close — Range —
Q2 2013
Shares 5,141 Value ($000) $124 Avg Close — Range —