CLIFFS NAT RES INC

CUSIP: 18683K101 Class: COMMON STOCK

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

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

Q2 2017
Shares 321,580 Value ($000) $2,225 Avg Close — Range —
Q1 2017
Shares 59,532 Value ($000) $489 Avg Close — Range —
Q4 2013
Shares 2,846 Value ($000) $75 Avg Close — Range —