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21VIANET GROUP INC
21VIANET GROUP INC. Institutional holdings reported to the SEC.

Institutional Holders (2016Q2)
Portfolio Summary: 90 Institutional holders with a total value of $348,328,223.
#
Manager Name
Shares
Value ($)
%
Options
Notes
51 VOLORIDGE INVESTMENT MANAGEMENT, LLC 51,000 521,000 0.15%
52 EverPoint Asset Management, LLC 50,000 511,000 0.15%
53 WOLVERINE TRADING LP /BD 372 360,468 0.10% Put
54 JANE STREET GROUP, LLC 31,000 317,000 0.09% Put
55 WOLVERINE TRADING LP /BD 302 292,638 0.08% Call
56 JANE STREET GROUP, LLC 27,831 284,000 0.08%
57 INTEGRAL DERIVATIVES, LLC 27,000 276,000 0.08% Call
58 UBS Group AG 27,000 276,000 0.08% Put
59 Walleye Trading LLC 27,000 275,000 0.08% Put
60 BARCLAYS PLC 25,800 263,000 0.08% Call
61 BlackRock Finance, Inc. 25,465 260,000 0.07%
62 GEODE CAPITAL MANAGEMENT, LLC 25,510 260,000 0.07%
63 Walleye Trading LLC 24,500 250,000 0.07% Call
64 BARCLAYS PLC 23,900 244,000 0.07% Put
65 CITIGROUP INC 20,600 210,000 0.06% Call
66 PEAK6 Group LLC 20,000 204,000 0.06% Call
67 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 19,600 200,000 0.06%
68 VANGUARD GROUP INC 19,200 196,000 0.06%
69 AQR CAPITAL MANAGEMENT LLC 16,414 168,000 0.05%
70 Spot Trading L.L.C 16,500 168,000 0.05% Call
71 Global X Management CO LLC 15,844 162,000 0.05%
72 Legal & General Group Plc 15,000 153,000 0.04%
73 Quantitative Systematic Strategies LLC 15,659 152,000 0.04%
74 CUTLER GROUP LLC / CA 13,789 140,000 0.04%
75 WOLVERINE TRADING LP /BD 13,944 135,117 0.04%
76 TWO SIGMA INVESTMENTS, LP 12,451 127,000 0.04%
77 Parallax Volatility Advisers, L.P. 12,000 123,000 0.04% Call
78 Kassirer Asset Management Corp 10,000 102,000 0.03%
79 Walleye Trading LLC 9,797 100,000 0.03%
80 Cubist Systematic Strategies, LLC 9,800 100,000 0.03%
81 Jefferies Financial Group Inc. 8,100 83,000 0.02%
82 PENSERRA CAPITAL MANAGEMENT LLC 5,992 61,000 0.02%
83 JPMORGAN CHASE & CO 4,132 42,000 0.01%
84 Spot Trading L.L.C 3,900 40,000 0.01% Put
85 CUTLER GROUP LLC / CA 94,300 31,000 0.01% Call
86 BANK OF AMERICA CORP /DE/ 2,916 30,000 0.01%
87 ROYAL BANK OF CANADA 58 1,000 0.00%
88 Bluefin Trading, LLC 10,000 1,000 0.00% Call
89 GLENMEDE TRUST CO NA 49 0 0.00%
90 US BANCORP \DE\ 33 0 0.00%
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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.