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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
-17.92%
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
$94.1B
AUM Growth
-$15.3B
Cap. Flow
+$11.3B
Cap. Flow %
12.02%
Top 10 Hldgs %
40.12%
Holding
11,810
New
1,405
Increased
4,027
Reduced
4,289
Closed
1,792

Sector Composition

Rank Sector Weight
1 Technology 0.84%
2 Communication Services 0.32%
3 Consumer Discretionary 0.32%
4 Financials 0.28%
5 Healthcare 0.2%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
IMAX icon
1876
PUT
IMAX
IMAX
$2.38B
$1.98M ﹤0.01%
117,300
+15,700
+15% +$255K
AVIR icon
1877
CALL
Atea Pharmaceuticals
AVIR
$379M
$1.98M ﹤0.01%
278,600
+243,800
+701% +$1.66M
GH icon
1878
PUT
Guardant Health
GH
$19.5B
$1.98M ﹤0.01%
49,000
+43,100
+731% +$2.14M
RL icon
1879
PUT
Ralph Lauren
RL
$22.2B
$1.97M ﹤0.01%
22,000
-3,000
-12% -$303K
ATHM icon
1880
CALL
Autohome
ATHM
$2.43B
$1.97M ﹤0.01%
50,100
-1,100
-2% -$34.2K
THCA
1881
CALL
DELISTED
Tuscan Holdings Corp. II Common Stock
THCA
$1.97M ﹤0.01%
190,400
+27,000
+17% +$288K
FCEL icon
1882
CALL
FuelCell Energy
FCEL
$1.7B
$1.97M ﹤0.01%
17,473
-5,637
-24% -$711K
LBRT icon
1883
Liberty Energy
LBRT
$2.83B
$1.96M ﹤0.01%
153,986
+152,779
+12,658% +$2.4M
WGO icon
1884
PUT
Winnebago Industries
WGO
$870M
$1.96M ﹤0.01%
40,400
+34,200
+552% +$1.77M
LYB icon
1885
CALL
LyondellBasell Industries
LYB
$19.5B
$1.96M ﹤0.01%
22,400
-30,700
-58% -$3.2M
NTCT icon
1886
CALL
NETSCOUT
NTCT
$2.86B
$1.96M ﹤0.01%
57,900
+50,500
+682% +$1.69M
WE
1887
CALL
DELISTED
WeWork Inc.
WE
$1.96M ﹤0.01%
9,758
+2,363
+32% +$608K
GKOS icon
1888
PUT
Glaukos
GKOS
$9.02B
$1.96M ﹤0.01%
43,100
+40,900
+1,859% +$1.94M
RJF icon
1889
CALL
Raymond James Financial
RJF
$32.5B
$1.96M ﹤0.01%
25,400
+9,900
+64% +$970K
INMD icon
1890
CALL
InMode
INMD
$872M
$1.95M ﹤0.01%
87,200
-25,300
-22% -$665K
TE
1891
CALL
T1 Energy
TE
$1.4B
$1.95M ﹤0.01%
285,600
-122,700
-30% -$1.07M
ICE icon
1892
Intercontinental Exchange
ICE
$82.4B
$1.95M ﹤0.01%
20,758
+14,373
+225% +$1.54M
CPE
1893
DELISTED
Callon Petroleum Company
CPE
$1.95M ﹤0.01%
49,752
+28,865
+138% +$1.54M
AG icon
1894
PUT
First Majestic Silver
AG
$8.05B
$1.95M ﹤0.01%
271,500
-67,900
-20% -$663K
AGL icon
1895
PUT
Agilon Health
AGL
$1.64B
$1.95M ﹤0.01%
3,568
+3,300
+1,231% +$1.67M
CC icon
1896
CALL
Chemours
CC
$2.59B
$1.94M ﹤0.01%
60,700
-6,800
-10% -$250K
JBLU icon
1897
JetBlue
JBLU
$1.96B
$1.94M ﹤0.01%
232,148
+148,485
+177% +$1.59M
NICE icon
1898
PUT
Nice
NICE
$5.29B
$1.94M ﹤0.01%
10,100
+2,800
+38% +$567K
JMIA
1899
CALL
Jumia Technologies
JMIA
$726M
$1.94M ﹤0.01%
320,500
+81,700
+34% +$598K
BNY
1900
CALL
Bank of New York Mellon
BNY
$108B
$1.94M ﹤0.01%
46,500
-4,900
-10% -$218K

Similar funds

Simplex Trading's Q2 2022 Portfolio in Review

As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.

Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.

By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.

On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.

  • Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
  • Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
  • Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
  • Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
  • Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
  • Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
  • Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.

Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.