Simplex Trading

Simplex Trading Portfolio holdings

AUM $3.72B
 

Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.

This Quarter Return
-0.58%
1 Year Return
+0.6%
3 Year Return
+1.23%
5 Year Return
+2.7%
10 Year Return
+32.99%
AUM
$3.04B
AUM Growth
+$3.04B
Cap. Flow
+$403M
Cap. Flow %
13.28%
Top 10 Hldgs %
32.52%
Holding
4,979
New
869
Increased
814
Reduced
963
Closed
1,055

Sector Composition

1 Technology 26.01%
2 Consumer Discretionary 9.82%
3 Communication Services 9.82%
4 Financials 8.68%
5 Healthcare 6.23%
Name Market Value Portfolio Weight Shares or Principal Shares
Change %
Capital Flow
NEM icon
26
Newmont
NEM
$83.6B
$20M 0.02%
335,924
+302,449
+904% +$18M
BMY icon
27
Bristol-Myers Squibb
BMY
$97.2B
$18.6M 0.02%
241,059
+240,884
+137,648% +$18.5M
TBT icon
28
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$305M
$18.3M 0.02%
+699,821
New +$18.3M
ATVI
29
DELISTED
Activision Blizzard Inc.
ATVI
$18.1M 0.02%
231,970
-19,954
-8% -$1.55M
TGT icon
30
Target
TGT
$41.8B
$17.9M 0.02%
127,027
+36,433
+40% +$5.15M
SBUX icon
31
Starbucks
SBUX
$99.4B
$17.2M 0.02%
225,583
+102,819
+84% +$7.85M
BP icon
32
BP
BP
$89B
$16.7M 0.02%
589,274
+192,681
+49% +$5.46M
XLE icon
33
Energy Select Sector SPDR Fund
XLE
$27.2B
$16.3M 0.02%
227,525
+205,035
+912% +$14.7M
VZ icon
34
Verizon
VZ
$183B
$16.2M 0.02%
319,952
+309,730
+3,030% +$15.7M
FDX icon
35
FedEx
FDX
$53B
$16.2M 0.02%
71,582
+55,136
+335% +$12.5M
NIO icon
36
NIO
NIO
$13.7B
$15.6M 0.02%
719,369
-440,092
-38% -$9.56M
XLU icon
37
Utilities Select Sector SPDR Fund
XLU
$20.8B
$15.3M 0.02%
218,859
+179,312
+453% +$12.6M
ZM icon
38
Zoom
ZM
$25B
$15.3M 0.02%
+142,110
New +$15.3M
WFC icon
39
Wells Fargo
WFC
$260B
$15.3M 0.02%
390,214
+376,596
+2,765% +$14.8M
GDX icon
40
VanEck Gold Miners ETF
GDX
$19.7B
$15.1M 0.02%
553,014
+164,196
+42% +$4.5M
GM icon
41
General Motors
GM
$55.8B
$14.9M 0.02%
470,005
+369,187
+366% +$11.7M
LMT icon
42
Lockheed Martin
LMT
$105B
$13.8M 0.01%
32,164
+28,667
+820% +$12.3M
GS icon
43
Goldman Sachs
GS
$221B
$13.8M 0.01%
46,441
+14,189
+44% +$4.21M
NFLX icon
44
Netflix
NFLX
$520B
$13.8M 0.01%
78,690
+60,467
+332% +$10.6M
TIP icon
45
iShares TIPS Bond ETF
TIP
$13.5B
$13.4M 0.01%
117,478
+98,175
+509% +$11.2M
VLO icon
46
Valero Energy
VLO
$48.2B
$13.4M 0.01%
125,843
+125,618
+55,830% +$13.4M
QCOM icon
47
Qualcomm
QCOM
$171B
$13.1M 0.01%
102,669
+4,626
+5% +$591K
PLTR icon
48
Palantir
PLTR
$381B
$12.5M 0.01%
1,377,699
-1,265,610
-48% -$11.5M
SNAP icon
49
Snap
SNAP
$12.3B
$11.8M 0.01%
896,240
+542,090
+153% +$7.12M
MRNA icon
50
Moderna
MRNA
$9.37B
$11.6M 0.01%
81,037
+7,033
+10% +$1M