QUALITY SYS INC

CUSIP: 747582104 Class: COM

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

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

Q1 2018
Shares 3,415 Value ($000) $47 Avg Close — Range —
Q4 2017
Shares 3,015 Value ($000) $41 Avg Close — Range —
Q3 2017
Shares 2,815 Value ($000) $44 Avg Close — Range —
Q2 2017
Shares 4,615 Value ($000) $79 Avg Close — Range —
Q3 2016
Shares 3,240 Value ($000) $37 Avg Close — Range —
Q2 2016
Shares 10,140 Value ($000) $121 Avg Close — Range —
Q1 2016
Shares 8,481 Value ($000) $129 Avg Close — Range —
Q4 2015
Shares 1,415 Value ($000) $23 Avg Close — Range —
Q3 2015
Shares 2,415 Value ($000) $30 Avg Close — Range —
Q1 2015
Shares 135 Value ($000) $2 Avg Close — Range —
Q2 2014
Shares 5,392 Value ($000) $87 Avg Close — Range —
Q1 2014
Shares 8,449 Value ($000) $143 Avg Close — Range —
Q4 2013
Shares 4,865 Value ($000) $102 Avg Close — Range —
Q3 2013
Shares 3,364 Value ($000) $73 Avg Close — Range —
Q2 2013
Shares 950 Value ($000) $18 Avg Close — Range —