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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
EGLX
6951
DELISTED
Enthusiast Gaming Holdings Inc. Common Stock
EGLX
$35K ﹤0.01%
+17,793
New +$38.5K
FRG
6952
CALL
DELISTED
Franchise Group, Inc.
FRG
$35K ﹤0.01%
1,000
+100
+11% +$3.87K
VNTR
6953
CALL
DELISTED
Venator Materials PLC
VNTR
$35K ﹤0.01%
17,100
-3,300
-16% -$6.74K
SJR
6954
CALL
DELISTED
Shaw Communications Inc.
SJR
$35K ﹤0.01%
1,200
-2,500
-68% -$72.4K
SRLP
6955
DELISTED
SPRAGUE RESOURCES LP
SRLP
$35K ﹤0.01%
+1,860
New +$31.7K
RMO
6956
CALL
DELISTED
Romeo Power, Inc.
RMO
$35K ﹤0.01%
80,000
-10,200
-11% -$9.56K
ACH
6957
CALL
DELISTED
Alum Corp of China Ltd
ACH
$35K ﹤0.01%
3,700
+2,700
+270% +$30.8K
AVEO
6958
PUT
DELISTED
AVEO Pharmaceuticals, Inc.
AVEO
$35K ﹤0.01%
5,400
-2,500
-32% -$12.1K
MACK
6959
CALL
DELISTED
Merrimack Pharmaceuticals, Inc.
MACK
$35K ﹤0.01%
5,900
-3,300
-36% -$18.6K
BYSI icon
6960
PUT
BeyondSpring
BYSI
$47.3M
$34K ﹤0.01%
24,000
-12,800
-35% -$21.4K
CDXS icon
6961
CALL
Codexis
CDXS
$151M
$34K ﹤0.01%
3,300
-1,700
-34% -$21.3K
CHX
6962
DELISTED
ChampionX
CHX
$34K ﹤0.01%
1,739
-1,185
-41% -$26.8K
CPF icon
6963
CALL
Central Pacific Financial
CPF
$1.02B
$34K ﹤0.01%
1,600
-500
-24% -$12.1K
CQP icon
6964
Cheniere Energy
CQP
$31.9B
$34K ﹤0.01%
768
-4,950
-87% -$260K
BGMS
6965
Bio Green Med Solution Inc
BGMS
$4.91M
$34K ﹤0.01%
9
+8
+800% +$48.3K
DOLE icon
6966
PUT
Dole
DOLE
$1.35B
$34K ﹤0.01%
4,100
-17,000
-81% -$187K
GIL icon
6967
CALL
Gildan
GIL
$10.3B
$34K ﹤0.01%
1,200
+300
+33% +$9.6K
GSAT icon
6968
PUT
Globalstar
GSAT
$10.7B
$34K ﹤0.01%
1,853
-8,567
-82% -$159K
HITI
6969
High Tide
HITI
$186M
$34K ﹤0.01%
17,190
-12,613
-42% -$37.4K
HRMY icon
6970
Harmony Biosciences
HRMY
$2.04B
$34K ﹤0.01%
712
+612
+612% +$27.6K
KALU icon
6971
Kaiser Aluminum
KALU
$2.61B
$34K ﹤0.01%
432
-86
-17% -$8.04K
KEP icon
6972
PUT
Korea Electric Power
KEP
$15.3B
$34K ﹤0.01%
3,900
-6,800
-64% -$60.3K
KFY icon
6973
PUT
Korn Ferry
KFY
$4.18B
$34K ﹤0.01%
+600
New +$36.4K
KT icon
6974
CALL
KT
KT
$8.62B
$34K ﹤0.01%
2,500
+900
+56% +$12.9K
LX
6975
PUT
LexinFintech Holdings
LX
$241M
$34K ﹤0.01%
15,400
-78,400
-84% -$181K

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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.