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Institutional Investment Manager
SIMPLEX TRADING, LLC
SIMPLEX TRADING, LLC (CIK: 0001488542) incorporated in Delaware, located at 230 S. Lasalle Street, Chicago, IL. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q1)
Portfolio Summary: 6,178 holdings with a total value of $859,885,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 MOBILE TELESYSTEMS PJSC 10 0 0.00% Call
2 ARCELORMITTAL SA LUXEMBOURG 22 0 0.00% Call
3 PHOTRONICS INC 59 0 0.00%
4 HEALTHEQUITY INC 6 0 0.00% Put
5 FS KKR CAPITAL CORP COM 41 0 0.00%
6 SINCLAIR BROADCAST GROUP INC 4 0 0.00% Put
7 WINNEBAGO INDS INC 10 0 0.00% Call
8 NATIONAL GRID PLC 33 0 0.00% Call
9 BARRACUDA NETWORKS INC 40 0 0.00% Put
10 HEARTLAND PMT SYS INC 4 0 0.00% Call
11 S&W SEED CO 2 0 0.00% Put
12 NOVO-NORDISK A S 7 0 0.00% Put
13 HORNBECK OFFSHORE SVCS IN 37 0 0.00%
14 MOBILE TELESYSTEMS PJSC 5 0 0.00% Put
15 OPOWER INC 50 0 0.00% Call
16 LIFEPOINT HEALTH INC 1 0 0.00% Put
17 THERAVANCE INC 1 0 0.00% Call
18 ARCOS DORADOS HOLDINGS INC 39 0 0.00% Call
19 SONOCO PRODS CO 1 0 0.00% Call
20 VOC ENERGY TR 83 0 0.00%
21 FRANKS INTL N V 1 0 0.00% Call
22 UNUM GROUP 18 0 0.00% Call
23 NORDIC AMERICAN TANKERS LIMI 6 0 0.00% Put
24 CALLIDUS SOFTWARE INC 3 0 0.00% Put
25 SUCAMPO PHARMACEUTICALS INC 12 0 0.00% Put
26 CORELOGIC INC 8 0 0.00%
27 VANGUARD BD INDEX FD INC 2 0 0.00% Put
28 ARES CAP CORP 23 0 0.00% Call
29 SIBANYE GOLD LTD 1 0 0.00% Call
30 KBR INC 7 0 0.00% Call
31 KIMCO RLTY CORP 7 0 0.00% Put
32 VANDA PHARMACEUTICALS INC 25 0 0.00% Call
33 TFS FINL CORP 1 0 0.00% Call
34 INTERACTIVE BROKERS GROUP IN 50 0 0.00% Put
35 DENISON MINES CORP 20 0 0.00% Call
36 FLUIDIGM CORP DEL 9 0 0.00% Put
37 CTI BIOPHARMA CORP 50 0 0.00% Call
38 VITAMIN SHOPPE INC 5 0 0.00% Call
39 WEIBO CORP 27 0 0.00%
40 PACCAR INC 10 0 0.00% Call
41 ARCOS DORADOS HOLDINGS INC 1 0 0.00% Put
42 BEACON ROOFING SUPPLY INC 2 0 0.00% Put
43 DIANA CONTAINERSHIPS INC 10 0 0.00% Call
44 MAIN STREET CAPITAL CORP 7 0 0.00% Call
45 MGIC INVT CORP WIS 4 0 0.00% Put
46 LEAPFROG ENTERPRISES INC 5 0 0.00% Call
47 AK STL HLDG CORP 1 0 0.00% Call
48 HCI GROUP INC 13 0 0.00% Call
49 PHARMATHENE INC 20 0 0.00% Call
50 ADVISORY BRD CO 1 0 0.00% Put
Page 1 of 124

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001488542-15-000006, filed 2015.04.21).

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.