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
+7.55%
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
$31.1B
AUM Growth
+$5.63B
Cap. Flow
+$12.2M
Cap. Flow %
0.04%
Top 10 Hldgs %
33.61%
Holding
8,699
New
1,336
Increased
3,066
Reduced
2,755
Closed
1,315

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$148M
2
QQQ icon
Invesco QQQ Trust
QQQ
+$67.3M
3
META icon
Meta Platforms (Facebook)
META
+$63.2M
4
GS icon
Goldman Sachs
GS
+$23.9M
5
C icon
Citigroup
C
+$23.1M

Top Sells

Rank Stock Value
1
BRK.B icon
Berkshire Hathaway Class B
BRK.B
+$47.5M
2
AAPL icon
Apple
AAPL
+$46M
3
DIA icon
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
+$44.5M
4
MU icon
Micron Technology
MU
+$29.1M
5
ADBE icon
Adobe
ADBE
+$22.2M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 1.13%
2 Communication Services 0.89%
3 Technology 0.68%
4 Industrials 0.51%
5 Healthcare 0.44%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ENTA icon
7551
PUT
Enanta Pharmaceuticals
ENTA
$374M
– –
-85
Closed -$985K
ENSG icon
7552
CALL
The Ensign Group
ENSG
$10.1B
– –
-95
Closed -$318K
ENTG icon
7553
Entegris
ENTG
$20.3B
– –
-37
Closed -$1.25K
ENVA icon
7554
PUT
Enova International
ENVA
$5.85B
– –
-23
Closed -$84K
EPAC icon
7555
CALL
Enerpac Tool Group
EPAC
$1.76B
– –
-11
Closed -$32K
EPAM icon
7556
EPAM Systems
EPAM
$4.7B
– –
-9,115
Closed -$1.23M
EPC icon
7557
Edgewell Personal Care
EPC
$1.27B
– –
-14,631
Closed -$774K
ERII icon
7558
PUT
Energy Recovery
ERII
$436M
– –
-101
Closed -$81K
ERX icon
7559
Direxion Daily Energy Bull 2X ETF
ERX
$250M
– –
-4,623
Closed -$1.76M
ESNT icon
7560
PUT
Essent Group
ESNT
$6.02B
– –
-5
Closed -$17K
ETD icon
7561
Ethan Allen Interiors
ETD
$581M
– –
-975
Closed -$22.3K
EVC icon
7562
CALL
Entravision Communication
EVC
$1.02B
– –
-454
Closed -$227K
EVC icon
7563
PUT
Entravision Communication
EVC
$1.02B
– –
-14
Closed -$7K
EVH icon
7564
Evolent Health
EVH
$497M
– –
-15,535
Closed -$371K
EVR icon
7565
Evercore
EVR
$13.2B
– –
-7,779
Closed -$838K
EVRI
7566
PUT
DELISTED
Everi Holdings
EVRI
– –
-41
Closed -$29K
EWH icon
7567
iShares MSCI Hong Kong ETF
EWH
$1.23B
– –
-3,456
Closed -$83K
EWS icon
7568
iShares MSCI Singapore ETF
EWS
$1.02B
– –
-1,996
Closed -$47K
EXC icon
7569
Exelon
EXC
$48.4B
– –
-8,565
Closed -$264K
EXPE icon
7570
Expedia Group
EXPE
$31.6B
– –
-13,751
Closed -$1.79M
F icon
7571
Ford
F
$57.6B
– –
-26,793
Closed -$268K
FAF icon
7572
CALL
First American
FAF
$7.72B
– –
-300
Closed -$1.55M
FAS icon
7573
Direxion Daily Financial Bull 3x ETF
FAS
$2.39B
– –
-596
Closed -$37K
FBIN icon
7574
Fortune Brands Innovations
FBIN
$6.16B
– –
-7,141
Closed -$336K
FBP icon
7575
First Bancorp
FBP
$4.41B
– –
-16,740
Closed -$142K
301 302
303
304 305

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
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 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

Simplex Trading's Q3 2018 Portfolio in Review

As of Q3 2018, Simplex Trading held 8,699 positions worth $31.1B, up 22% from $25.5B the previous quarter. Its ten largest holdings account for 34% of the portfolio.

Simplex Trading's Q3 2018 filing shows 1,336 new, 3,066 increased, 2,755 reduced and 1,315 closed positions. Its largest new stake was Invesco QQQ Trust: 371,806 shares worth $69.1M. The largest sale was Berkshire Hathaway Class B, an estimated $47.5M.

By sector, the portfolio is most concentrated in Consumer Discretionary at 1.1% of assets, up from 0.92% a quarter earlier, followed by Communication Services and Technology.

  • Simplex Trading's largest Q3 2018 buy was Invesco QQQ Trust: 371,806 shares worth $69.1M.
  • Simplex Trading added most to Amazon in Q3 2018, an estimated $148M increase.
  • Simplex Trading's biggest Q3 2018 reduction was Apple, cutting an estimated $46M.
  • Simplex Trading fully exited Berkshire Hathaway Class B in Q3 2018, selling an estimated $47.5M.
  • Simplex Trading's ten largest holdings make up 34% of its $31.1B portfolio in Q3 2018.
  • Simplex Trading opened 1,336 new positions and closed 1,315 in Q3 2018.
  • Simplex Trading's portfolio value rose 22% quarter-over-quarter to $31.1B.

Based on Simplex Trading's 13F filing for Q3 2018, filed 23 Oct 2018.