We are live on ! Find out more
Simplex Trading

Simplex Trading Portfolio holdings

AUM $149B
1-Year Est. Return 62.07%
 

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 Fund
S&P 500
This Quarter Est. Return
+26.79%
1 Year Est. Return
+62.07%
3 Year Est. Return
+116.86%
5 Year Est. Return
+116.02%
10 Year Est. Return
+774.44%
AUM
$77.2B
AUM Growth
+$3.66B
Cap. Flow
-$1.09B
Cap. Flow %
-1.41%
Top 10 Hldgs %
42.09%
Holding
9,568
New
1,711
Increased
3,402
Reduced
3,106
Closed
1,157

Top Buys

Rank Stock Value
1
BABA icon
Alibaba
BABA
+$39.9M
2
QQQ icon
Invesco QQQ Trust
QQQ
+$39M
3
MA icon
Mastercard
MA
+$31.3M
4
AAPL icon
Apple
AAPL
+$25.3M
5
GOOG icon
Alphabet (Google) Class C
GOOG
+$25.1M

Top Sells

Rank Stock Value
1
JPM icon
JPMorgan Chase
JPM
+$52.8M
2
TSM icon
TSMC
TSM
+$43M
3
AMZN icon
Amazon
AMZN
+$24.7M
4
SLV icon
iShares Silver Trust
SLV
+$24.2M
5
NFLX icon
Netflix
NFLX
+$21.1M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 0.65%
2 Technology 0.37%
3 Healthcare 0.33%
4 Industrials 0.21%
5 Communication Services 0.19%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ARES icon
5726
PUT
Ares Management
ARES
$28.7B
$75K ﹤0.01%
16
-64
-80% -$2.9K
ASIX icon
5727
PUT
AdvanSix
ASIX
$537M
$75K ﹤0.01%
38
+34
+850% +$583
ATOM icon
5728
Atomera
ATOM
$201M
$75K ﹤0.01%
4,705
-22,381
-83% -$234K
BBT
5729
Beacon Financial Corp
BBT
$2.61B
$75K ﹤0.01%
4,382
-17,738
-80% -$265K
DESP
5730
DELISTED
Despegar.com
DESP
$75K ﹤0.01%
+5,905
New +$56.8K
DMC
5731
Del Monte Corp
DMC
$1.4B
$75K ﹤0.01%
+3,139
New +$75.7K
GPN icon
5732
Global Payments
GPN
$23B
$75K ﹤0.01%
350
-2,681
-88% -$500K
NVMI
5733
Nova
NVMI
$12.8B
$75K ﹤0.01%
+1,065
New +$66.3K
OII icon
5734
Oceaneering
OII
$4.77B
$75K ﹤0.01%
9,461
-6,016
-39% -$35.1K
ABTC
5735
PUT
American Bitcoin Corp
ABTC
$411M
– –
0
– –
ALEX
5736
DELISTED
Alexander & Baldwin
ALEX
$74K ﹤0.01%
4,323
-2,156
-33% -$31.5K
BGC icon
5737
CALL
BGC Group
BGC
$5.55B
$74K ﹤0.01%
186
-95
-34% -$332
BZH icon
5738
PUT
Beazer Homes USA
BZH
$877M
$74K ﹤0.01%
49
-64
-57% -$920
EXLS icon
5739
EXL Service
EXLS
$5.19B
$74K ﹤0.01%
4,375
+3,445
+370% +$54.6K
GSHD icon
5740
PUT
Goosehead Insurance
GSHD
$2.22B
$74K ﹤0.01%
6
+1
+20% +$114
HLX icon
5741
Helix Energy Solutions
HLX
$1.37B
$74K ﹤0.01%
+17,630
New +$58.9K
KRRO icon
5742
CALL
Korro Bio
KRRO
$149M
– –
0
– –
LOPE icon
5743
CALL
Grand Canyon Education
LOPE
$3.91B
$74K ﹤0.01%
8
-19
-70% -$1.62K
LPSN icon
5744
PUT
LivePerson
LPSN
$21.8M
$74K ﹤0.01%
1
-11
-92% -$9.46K
LSAK icon
5745
CALL
Lesaka Technologies
LSAK
$407M
$74K ﹤0.01%
152
+123
+424% +$430
TFSL icon
5746
PUT
TFS Financial
TFSL
$5.28B
$74K ﹤0.01%
42
+28
+200% +$466
TMV icon
5747
Direxion Daily 20+ Year Treasury Bear 3X ETF
TMV
$187M
$74K ﹤0.01%
+5,552
New +$74.9K
TRVG
5748
trivago
TRVG
$378M
$74K ﹤0.01%
+6,178
New +$54.3K
INFI
5749
CALL
DELISTED
Infinity Pharmaceuticals, Inc.
INFI
$74K ﹤0.01%
352
+16
+5% +$26
XONE
5750
DELISTED
The ExOne Company
XONE
$74K ﹤0.01%
7,840
+2,491
+47% +$28.4K
228 229
230
231 232

Similar funds

Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $149B AUM 24.71% 1-Year Est. Return
Creative Planning
Creative Planning Overland Park, Kansas $147B AUM 18.73% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return
Northwestern Mutual Wealth Management
Northwestern Mutual Wealth Management Milwaukee, Wisconsin $162B AUM 16.35% 1-Year Est. Return

Simplex Trading's Q4 2020 Portfolio in Review

As of Q4 2020, Simplex Trading held 9,568 positions worth $77.2B, up 5% from $73.5B the previous quarter. Its ten largest holdings account for 42% of the portfolio.

Simplex Trading's Q4 2020 filing shows 1,711 new, 3,402 increased, 3,106 reduced and 1,157 closed positions. Its largest new stake was Alibaba: 143,630 shares worth $33.4M. The largest sale was JPMorgan Chase, an estimated $52.8M.

By sector, the portfolio is most concentrated in Consumer Discretionary at 0.65% of assets, up from 0.53% a quarter earlier, followed by Technology and Healthcare.

  • Simplex Trading's largest Q4 2020 buy was Alibaba: 143,630 shares worth $33.4M.
  • Simplex Trading added most to Invesco QQQ Trust in Q4 2020, an estimated $39M increase.
  • Simplex Trading's biggest Q4 2020 reduction was JPMorgan Chase, cutting an estimated $52.8M.
  • Simplex Trading fully exited Target in Q4 2020, selling an estimated $14.3M.
  • Simplex Trading's ten largest holdings make up 42% of its $77.2B portfolio in Q4 2020.
  • Simplex Trading opened 1,711 new positions and closed 1,157 in Q4 2020.
  • Simplex Trading's portfolio value rose 5% quarter-over-quarter to $77.2B.

Based on Simplex Trading's 13F filing for Q4 2020, filed 2 Feb 2021.