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
KTB icon
6951
CALL
Kontoor Brands
KTB
$4.62B
$7K ﹤0.01%
3
-80
-96% -$1.68K
LKFN icon
6952
Lakeland Financial Corp
LKFN
$1.52B
$7K ﹤0.01%
+177
New +$8K
LODE icon
6953
CALL
Comstock
LODE
$228M
$7K ﹤0.01%
+7
New +$67
LXU icon
6954
PUT
LSB Industries
LXU
$881M
$7K ﹤0.01%
+59
New +$74
MCFT icon
6955
MasterCraft Boat Holdings
MCFT
$588M
$7K ﹤0.01%
+452
New +$9.05K
MMLP icon
6956
CALL
Martin Midstream Partners
MMLP
$95.9M
$7K ﹤0.01%
67
-74
-52% -$124
NXTC icon
6957
PUT
NextCure
NXTC
$17.3M
$7K ﹤0.01%
1
-1
-50% -$123
OTTR icon
6958
CALL
Otter Tail
OTTR
$3.88B
$7K ﹤0.01%
2
+1
+100% +$38
PG icon
6959
Procter & Gamble
PG
$343B
$7K ﹤0.01%
+55
New +$7.3K
PLX icon
6960
PUT
Protalix BioTherapeutics
PLX
$191M
$7K ﹤0.01%
19
+9
+90% +$33
PRIM icon
6961
PUT
Primoris Services
PRIM
$4.69B
$7K ﹤0.01%
+4
New +$71
PTGX icon
6962
PUT
Protagonist Therapeutics
PTGX
$8.75B
$7K ﹤0.01%
+4
New +$75
QMCO icon
6963
Quantum Corp
QMCO
$437M
$7K ﹤0.01%
+77
New +$7.5K
QUAD icon
6964
PUT
Quad
QUAD
$430M
$7K ﹤0.01%
24
+7
+41% +$23
SCZ icon
6965
iShares MSCI EAFE Small-Cap ETF
SCZ
$13.5B
$7K ﹤0.01%
132
-111
-46% -$6.36K
SFBS
6966
ServisFirst Bancshares
SFBS
$4.79B
$7K ﹤0.01%
+206
New +$7.4K
SLP icon
6967
PUT
Simulations Plus
SLP
$371M
$7K ﹤0.01%
1
-2
-67% -$128
SNDR icon
6968
Schneider National
SNDR
$6.59B
$7K ﹤0.01%
+291
New +$7.51K
SPRO icon
6969
CALL
Spero Therapeutics
SPRO
$68.9M
$7K ﹤0.01%
+7
New +$83
TDW icon
6970
CALL
Tidewater
TDW
$3.91B
$7K ﹤0.01%
11
-6
-35% -$39
TSQ icon
6971
CALL
Townsquare Media
TSQ
$113M
$7K ﹤0.01%
16
-49
-75% -$228
VGZ icon
6972
PUT
Vista Gold
VGZ
$253M
$7K ﹤0.01%
70
+30
+75% +$34
WIT icon
6973
Wipro
WIT
$18.5B
$7K ﹤0.01%
3,198
-3,586
-53% -$7.5K
WLKP icon
6974
CALL
Westlake Chemical Partners
WLKP
$777M
$7K ﹤0.01%
4
-6
-60% -$119
XPRO icon
6975
Expro Ltd
XPRO
$1.79B
$7K ﹤0.01%
763
-106
-12% -$1.42K
277 278
279
280 281

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 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.