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
+12.69%
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
$73.5B
AUM Growth
+$10.8B
Cap. Flow
-$1.16B
Cap. Flow %
-1.58%
Top 10 Hldgs %
42.78%
Holding
9,056
New
1,403
Increased
3,135
Reduced
3,122
Closed
1,191

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$102M
2
TSM icon
TSMC
TSM
+$27.8M
3
JPM icon
JPMorgan Chase
JPM
+$22.4M
4
BA icon
Boeing
BA
+$19.4M
5
XOM icon
ExxonMobil
XOM
+$14.7M

Top Sells

Rank Stock Value
1
GLD icon
SPDR Gold Trust
GLD
+$95.5M
2
QQQ icon
Invesco QQQ Trust
QQQ
+$79.6M
3
TSLA icon
Tesla
TSLA
+$75.3M
4
NVDA icon
NVIDIA
NVDA
+$51.6M
5
EFA icon
iShares MSCI EAFE ETF
EFA
+$40.5M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 0.53%
2 Technology 0.4%
3 Healthcare 0.22%
4 Financials 0.21%
5 Communication Services 0.18%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HDSN
5201
CALL
Hudson Technologies
HDSN
$254M
$75K ﹤0.01%
657
+197
+43% +$224
ING icon
5202
ING
ING
$99.8B
$75K ﹤0.01%
+10,697
New +$81.8K
PKX icon
5203
CALL
POSCO
PKX
$16.1B
$75K ﹤0.01%
18
+3
+20% +$121
HTT
5204
CALL
High Templar Tech Ltd
HTT
$379M
$75K ﹤0.01%
607
-783
-56% -$1.32K
TX icon
5205
CALL
Ternium
TX
$9.67B
$75K ﹤0.01%
40
+30
+300% +$503
MAGN
5206
PUT
Magnera Corp
MAGN
$472M
$75K ﹤0.01%
+4
New +$799
HRC
5207
PUT
DELISTED
HILL-ROM HOLDINGS, INC.
HRC
$75K ﹤0.01%
9
+4
+80% +$392
CCMP
5208
DELISTED
CMC Materials, Inc. Common Stock
CCMP
$75K ﹤0.01%
528
+32
+6% +$4.78K
CHX
5209
DELISTED
ChampionX
CHX
$74K ﹤0.01%
+9,279
New +$89.4K
CUBE icon
5210
CALL
CubeSmart
CUBE
$9.39B
$74K ﹤0.01%
23
-11
-32% -$333
CW icon
5211
CALL
Curtiss-Wright
CW
$26.7B
$74K ﹤0.01%
8
+4
+100% +$384
FROG icon
5212
JFrog
FROG
$9.66B
$74K ﹤0.01%
+878
New +$65.4K
GRFS
5213
Grifois
GRFS
$5.36B
$74K ﹤0.01%
4,266
+3,670
+616% +$64.8K
ICAD
5214
PUT
DELISTED
iCAD Inc
ICAD
$74K ﹤0.01%
84
+10
+14% +$99
KRO icon
5215
PUT
KRONOS Worldwide
KRO
$693M
$74K ﹤0.01%
58
+37
+176% +$443
LCII icon
5216
PUT
LCI Industries
LCII
$2.49B
$74K ﹤0.01%
7
+6
+600% +$699
MBIO icon
5217
PUT
Mustang Bio
MBIO
$4.32M
– –
0
– –
MG icon
5218
Mistras Group
MG
$484M
$74K ﹤0.01%
+18,977
New +$76.2K
TR icon
5219
CALL
Tootsie Roll Industries
TR
$2.93B
$74K ﹤0.01%
29
-24
-45% -$641
VECO icon
5220
CALL
Veeco
VECO
$3.05B
$74K ﹤0.01%
64
+32
+100% +$408
WMK icon
5221
Weis Markets
WMK
$1.91B
$74K ﹤0.01%
1,543
-4,147
-73% -$204K
WPP icon
5222
CALL
WPP
WPP
$4.36B
$74K ﹤0.01%
19
-56
-75% -$2.21K
HZN
5223
PUT
DELISTED
Horizon Global Corporation
HZN
$74K ﹤0.01%
+130
New +$630
HMSY
5224
DELISTED
HMS Holdings Corp.
HMSY
$74K ﹤0.01%
+3,129
New +$92K
CDP icon
5225
PUT
COPT Defense Properties
CDP
$4.3B
$73K ﹤0.01%
+31
New +$773
207 208
209
210 211

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 Q3 2020 Portfolio in Review

As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.

Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.

By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.

  • Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
  • Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
  • Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
  • Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
  • Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
  • Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
  • Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.

Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.