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CLIFFS NAT RES INC
CLIFFS NAT RES INC. Institutional holdings reported to the SEC.

Institutional Holders (2016Q2)
Portfolio Summary: 6 Institutional holders with a total value of $19,294,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 1,092,300 6,193,000 32.10% Call
2 WHITEBOX ADVISORS LLC 1,000,000 5,670,000 29.39% Call
3 Timber Hill LLC 825,300 4,679,000 24.25% Call
4 CITADEL ADVISORS LLC 416,000 2,359,000 12.23% Call
5 SIMPLEX TRADING, LLC 3,104 367,000 1.90% Call
6 ADVENT CAPITAL MANAGEMENT /DE/ 800 26,000 0.13% Call

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.