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SPDR S&P 500 ETF TR
SPDR S&P 500 ETF TR. Institutional holdings reported to the SEC.

Institutional Holders (2016Q1)
Portfolio Summary: 18 Institutional holders with a total value of $9,772,458,806.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 13,867,100 2,850,522,000 29.17% Call
2 Belvedere Trading LLC 13,277,000 2,728,689,000 27.92% Call
3 Timber Hill LLC 6,152,600 1,264,482,000 12.94% Call
4 JPMORGAN CHASE & CO 4,732,900 972,895,000 9.96% Call
5 WHITEBOX ADVISORS LLC 3,850,000 791,406,000 8.10% Call
6 Virtu KCG Holdings LLC 2,465,400 506,689,000 5.18% Call
7 Pentwater Capital Management LP 2,072,800 426,002,000 4.36% Call
8 3G Capital Partners LP 15,000 62,054,000 0.63% Call
9 SG Americas Securities, LLC 5,210,800 44,833,000 0.46% Call
10 SNS Financial Group, LLC 170,000 35,960,000 0.37% Call
11 CIBC WORLD MARKETS CORP 100,000 20,552,000 0.21% Call
12 SIMPLEX TRADING, LLC 23,715 20,299,000 0.21% Call
13 Marathon Trading Investment Management LLC 82,600 16,979,000 0.17% Call
14 Calamos Advisors LLC 1,008 14,001,000 0.14% Call
15 StratiFi, LLC 5,200 10,711,000 0.11% Call
16 AXAR CAPITAL MANAGEMENT L.P. 62,000 5,488,000 0.06% Call
17 CMT Asset Management Ltd 49,000 895,000 0.01% Call
18 Patten Group, Inc. 12 1,806 0.00% 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.