CARBO CERAMICS INC

CUSIP: 140781105 Class: COMMON STOCK

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q1 2019
Shares 93,331 Value ($000) $327 Avg Close — Range —
Q4 2018
Shares 183,401 Value ($000) $638 Avg Close — Range —
Q2 2018
Shares 149,648 Value ($000) $1,372 Avg Close — Range —
Q1 2018
Shares 178,294 Value ($000) $1,293 Avg Close — Range —
Q3 2017
Shares 1,435 Value ($000) $12 Avg Close — Range —
Q2 2016
Shares 1,989 Value ($000) $26 Avg Close — Range —
Q3 2015
Shares 1,093 Value ($000) $21 Avg Close — Range —
Q2 2015
Shares 691 Value ($000) $29 Avg Close — Range —
Q1 2015
Shares 278 Value ($000) $8 Avg Close — Range —
Q4 2013
Shares 2,809 Value ($000) $327 Avg Close — Range —
Q3 2013
Shares 2,342 Value ($000) $232 Avg Close — Range —
Q2 2013
Shares 398 Value ($000) $27 Avg Close — Range —