We are live on ! Find out more
Simplex Trading

Simplex Trading Portfolio holdings

AUM $171B
1-Year Est. Return 85%
 

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
-6.21%
1 Year Est. Return
+85%
3 Year Est. Return
+183.25%
5 Year Est. Return
+145.21%
10 Year Est. Return
+1,056.84%
AUM
$56.7B
AUM Growth
+$11B
Cap. Flow
+$439M
Cap. Flow %
0.77%
Top 10 Hldgs %
50.41%
Holding
8,783
New
1,511
Increased
3,249
Reduced
2,705
Closed
1,159

Top Buys

Rank Stock Value
1
GLD icon
SPDR Gold Trust
GLD
+$31.6M
2
SLV icon
iShares Silver Trust
SLV
+$28.1M
3
DIA icon
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
+$25.1M
4
JPM icon
JPMorgan Chase
JPM
+$24.5M
5
JNUG icon
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
+$24M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$51.6M
2
AMZN icon
Amazon
AMZN
+$47.4M
3
TLT icon
iShares 20+ Year Treasury Bond ETF
TLT
+$44.7M
4
NFLX icon
Netflix
NFLX
+$38.3M
5
NVDA icon
NVIDIA
NVDA
+$31.1M

Sector Composition

Rank Sector Weight
1 Miscellaneous 98.1%
2 Technology 0.49%
3 Consumer Discretionary 0.33%
4 Healthcare 0.33%
5 Financials 0.16%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HPP
7851
PUT
Hudson Pacific Properties
HPP
$684M
– –
0
– -$3K
HROW icon
7852
CALL
Harrow
HROW
$1.44B
– –
-152
Closed -$118K
HRTG icon
7853
CALL
Heritage Insurance Holdings
HRTG
$1.01B
– –
-5
Closed -$6K
HSII
7854
DELISTED
Heidrick & Struggles
HSII
– –
-1,590
Closed -$42.3K
HSY icon
7855
Hershey
HSY
$34.8B
– –
-3,383
Closed -$499K
HUM icon
7856
Humana
HUM
$48.2B
– –
-10,647
Closed -$3.59M
HURN icon
7857
Huron Consulting
HURN
$2.47B
– –
-753
Closed -$51K
HWC icon
7858
PUT
Hancock Whitney
HWC
$6.08B
– –
-5
Closed -$21K
HXL icon
7859
CALL
Hexcel
HXL
$6.96B
– –
-715
Closed -$5.24M
HY icon
7860
Hyster-Yale Materials Handling
HY
$641M
– –
-240
Closed -$12.1K
IAG icon
7861
IAMGOLD
IAG
$11.7B
– –
-49,922
Closed -$145K
IART icon
7862
PUT
Integra LifeSciences
IART
$1.3B
– –
-3
Closed -$17K
IAT icon
7863
iShares US Regional Banks ETF
IAT
$659M
– –
-179
Closed -$9K
IBOC icon
7864
CALL
International Bancshares
IBOC
$4.47B
– –
-1
Closed -$4K
IBOC icon
7865
International Bancshares
IBOC
$4.47B
– –
-15
Closed –
ICE icon
7866
Intercontinental Exchange
ICE
$90.5B
– –
-9,300
Closed -$843K
ICLR icon
7867
PUT
Icon
ICLR
$12.7B
– –
-2
Closed -$34K
ICUI icon
7868
ICU Medical
ICUI
$4.19B
– –
-1,265
Closed -$243K
ICUI icon
7869
PUT
ICU Medical
ICUI
$4.19B
– –
-20
Closed -$374K
IDT icon
7870
PUT
IDT Corp
IDT
$1.71B
– –
-130
Closed -$93K
IDXX icon
7871
Idexx Laboratories
IDXX
$42.2B
– –
-611
Closed -$159K
IEF icon
7872
iShares 7-10 Year Treasury Bond ETF
IEF
$42.1B
– –
-20,794
Closed -$2.29M
IEMG icon
7873
iShares Core MSCI Emerging Markets ETF
IEMG
$165B
– –
-554
Closed -$27.2K
IGC icon
7874
IGC Pharma
IGC
$30.8M
– –
-100
Closed –
IIPR icon
7875
Innovative Industrial Properties
IIPR
$1.58B
– –
-399
Closed -$33.7K
313 314
315
316 317

Similar funds

Creative Planning
Creative Planning Overland Park, Kansas $171B AUM 24.68% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return
California Public Employees Retirement System
California Public Employees Retirement System Sacramento, California $177B AUM 39.86% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

Simplex Trading's Q1 2020 Portfolio in Review

As of Q1 2020, Simplex Trading held 8,783 positions worth $56.7B, up 24% from $45.7B the previous quarter. Its ten largest holdings account for 50% of the portfolio.

Simplex Trading's Q1 2020 filing shows 1,511 new, 3,249 increased, 2,705 reduced and 1,159 closed positions. Its largest new stake was SPDR Gold Trust: 212,230 shares worth $31.4M. The largest sale was Alphabet (Google) Class C, an estimated $51.6M.

By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, up from 97% a quarter earlier, followed by Technology and Consumer Discretionary.

  • Simplex Trading's largest Q1 2020 buy was SPDR Gold Trust: 212,230 shares worth $31.4M.
  • Simplex Trading added most to JPMorgan Chase in Q1 2020, an estimated $24.5M increase.
  • Simplex Trading's biggest Q1 2020 reduction was Amazon, cutting an estimated $47.4M.
  • Simplex Trading fully exited Alphabet (Google) Class C in Q1 2020, selling an estimated $51.6M.
  • Simplex Trading's ten largest holdings make up 50% of its $56.7B portfolio in Q1 2020.
  • Simplex Trading opened 1,511 new positions and closed 1,159 in Q1 2020.
  • Simplex Trading's portfolio value rose 24% quarter-over-quarter to $56.7B.

Based on Simplex Trading's 13F filing for Q1 2020, filed 29 Apr 2020.