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

Institutional Holders (2015Q2)
Portfolio Summary: 7 Institutional holders with a total value of $17,067,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 1,754,900 7,599,000 44.52% Put
2 KGH Ltd 606,800 4,960,000 29.06% Put
3 SG Americas Securities, LLC 827,400 1,817,000 10.65% Put
4 CITADEL ADVISORS LLC 339,100 1,468,000 8.60% Put
5 SIMPLEX TRADING, LLC 268 465,000 2.72% Put
6 LOEWS CORP 100,000 433,000 2.54% Put
7 Marathon Trading Investment Management LLC 75,000 325,000 1.90% Put

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.