INVESTMENT TECHNOLOGY GRP NE

CUSIP: 46145F105 Class: COMMON STOCK

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

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

Q2 2015
Shares 22,818 Value ($000) $566 Avg Close — Range —
Q1 2015
Shares 26,018 Value ($000) $789 Avg Close — Range —
Q3 2014
Shares 519 Value ($000) $8 Avg Close — Range —
Q3 2013
Shares 531 Value ($000) $8 Avg Close — Range —
Q2 2013
Shares 2,427 Value ($000) $34 Avg Close — Range —