KCG HLDGS INC

CUSIP: 48244B100 Class: common stock

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

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

Q4 2014
Shares 15,295 Value ($000) $178 Avg Close — Range —
Q3 2014
Shares 33,023 Value ($000) $335 Avg Close — Range —
Q3 2013
Shares 15,792 Value ($000) $137 Avg Close — Range —