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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
EQIX icon
7951
Equinix
EQIX
$107B
– –
-1,182
Closed -$894K
ES icon
7952
Eversource Energy
ES
$28.2B
– –
-23,813
Closed -$2.04M
ESNT icon
7953
Essent Group
ESNT
$6.06B
– –
-9,488
Closed -$339K
ET icon
7954
Energy Transfer Partners
ET
$70.1B
– –
-227,410
Closed -$1.44M
EUFN icon
7955
iShares MSCI Europe Financials ETF
EUFN
$3.87B
– –
-14,062
Closed -$200K
EVC icon
7956
Entravision Communication
EVC
$983M
$0 ﹤0.01%
340
-11,419
-97% -$16.4K
EVH icon
7957
Evolent Health
EVH
$475M
– –
-16,528
Closed -$194K
EVRG icon
7958
Evergy
EVRG
$20.1B
$0 ﹤0.01%
+19
New +$1.06K
EVTC icon
7959
CALL
Evertec
EVTC
$1.83B
– –
-1
Closed -$2K
EVTC icon
7960
PUT
Evertec
EVTC
$1.83B
– –
-4
Closed -$11K
EWC icon
7961
iShares MSCI Canada ETF
EWC
$6.04B
– –
-16,718
Closed -$432K
EWG icon
7962
iShares MSCI Germany ETF
EWG
$1.5B
– –
-54,984
Closed -$1.49M
EWP icon
7963
iShares MSCI Spain ETF
EWP
$1.98B
$0 ﹤0.01%
15,669
-9,136
-37% -$211K
EWQ icon
7964
iShares MSCI France ETF
EWQ
$324M
$0 ﹤0.01%
+2,430
New +$69.9K
EWT icon
7965
iShares MSCI Taiwan ETF
EWT
$10B
– –
-16,581
Closed -$666K
EWU icon
7966
iShares MSCI United Kingdom ETF
EWU
$4.04B
– –
-44,760
Closed -$1.15M
EWZ icon
7967
iShares MSCI Brazil ETF
EWZ
$9.05B
– –
-197,765
Closed -$5.69M
EXLS icon
7968
PUT
EXL Service
EXLS
$4.23B
– –
-55
Closed -$69K
EXPE icon
7969
CALL
Expedia Group
EXPE
$31.2B
– –
-3,004
Closed -$24.7M
EXPE icon
7970
Expedia Group
EXPE
$31.2B
$0 ﹤0.01%
36,033
-67,462
-65% -$6.07M
EXPE icon
7971
PUT
Expedia Group
EXPE
$31.2B
– –
-3,963
Closed -$32.6M
EYE icon
7972
National Vision
EYE
$1.6B
– –
-16,966
Closed -$590K
EYE icon
7973
PUT
National Vision
EYE
$1.6B
– –
-615
Closed -$1.88M
EYPT icon
7974
PUT
EyePoint Inc
EYPT
$1.02B
– –
-5
Closed -$3K
EZA icon
7975
iShares MSCI South Africa ETF
EZA
$525M
$0 ﹤0.01%
48,849
-667
-1% -$25.2K
317 318
319
320 321

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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.