CLIFFS NAT RES INC

CUSIP: 18683K101 Class: COMMON STOCK

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

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

Q2 2017
Shares 954,157 Value ($000) $6,603 Avg Close — Range —
Q1 2017
Shares 595,130 Value ($000) $4,886 Avg Close — Range —
Q4 2016
Shares 294,517 Value ($000) $2,477 Avg Close — Range —
Q3 2016
Shares 25,373 Value ($000) $148 Avg Close — Range —
Q2 2016
Shares 8,127 Value ($000) $46 Avg Close — Range —
Q3 2015
Shares 113 Value ($000) $0 Avg Close — Range —
Q2 2015
Shares 734,497 Value ($000) $3,180 Avg Close — Range —
Q1 2015
Shares 581,349 Value ($000) $2,796 Avg Close — Range —
Q4 2014
Shares 387,990 Value ($000) $2,770 Avg Close — Range —
Q3 2013
Shares 10,237 Value ($000) $210 Avg Close — Range —
Q2 2013
Shares 18,503 Value ($000) $301 Avg Close — Range —