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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
PDBC icon
1601
CALL
Invesco Actively Managed Exch-Traded Commodity Fd Tr Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF
PDBC
$5.81B
$2.71M ﹤0.01%
150,000
+56,700
+61% +$1.08M
CIEN icon
1602
PUT
Ciena
CIEN
$55.3B
$2.71M ﹤0.01%
59,200
+12,700
+27% +$658K
PODD icon
1603
CALL
Insulet
PODD
$11.3B
$2.7M ﹤0.01%
12,400
+11,800
+1,967% +$2.68M
TCOM icon
1604
Trip.com Group
TCOM
$27.5B
$2.7M ﹤0.01%
98,319
+54,827
+126% +$1.22M
UNIT
1605
CALL
Uniti Group
UNIT
$2.63B
$2.7M ﹤0.01%
286,300
+266,600
+1,353% +$3.08M
IBUY icon
1606
PUT
Amplify Online Retail ETF
IBUY
$106M
$2.69M ﹤0.01%
142,800
+82,300
+136% +$4.21M
STT icon
1607
CALL
State Street
STT
$50.9B
$2.69M ﹤0.01%
43,700
-12,500
-22% -$884K
SYY icon
1608
Sysco
SYY
$39.7B
$2.68M ﹤0.01%
31,600
+22,287
+239% +$1.87M
WOOF icon
1609
CALL
Petco
WOOF
$745M
$2.67M ﹤0.01%
181,400
-75,600
-29% -$1.37M
JCI icon
1610
CALL
Johnson Controls International
JCI
$87.5B
$2.67M ﹤0.01%
55,800
-112,700
-67% -$6.28M
TAGS icon
1611
PUT
Teucrium Agricultural Fund
TAGS
$19.6M
$2.65M ﹤0.01%
+206,200
New +$7.04M
HTHT icon
1612
CALL
Huazhu Hotels Group
HTHT
$12.4B
$2.65M ﹤0.01%
69,500
+37,100
+115% +$1.16M
APPS icon
1613
PUT
Digital Turbine
APPS
$1.02B
$2.64M ﹤0.01%
151,300
-80,800
-35% -$2.19M
AEM icon
1614
Agnico Eagle Mines
AEM
$72.6B
$2.63M ﹤0.01%
57,597
-51,625
-47% -$2.87M
ROL icon
1615
CALL
Rollins
ROL
$18.6B
$2.63M ﹤0.01%
75,400
+73,400
+3,670% +$2.52M
SMG icon
1616
CALL
ScottsMiracle-Gro
SMG
$4.03B
$2.63M ﹤0.01%
33,300
+18,100
+119% +$1.79M
GFI icon
1617
CALL
Gold Fields
GFI
$29.2B
$2.63M ﹤0.01%
288,200
+121,800
+73% +$1.46M
DM
1618
PUT
DELISTED
Desktop Metal, Inc.
DM
$2.62M ﹤0.01%
119,290
+41,810
+54% +$1.22M
CWH icon
1619
CALL
Camping World
CWH
$363M
$2.61M ﹤0.01%
121,100
-3,800
-3% -$100K
RDFN
1620
CALL
DELISTED
Redfin
RDFN
$2.61M ﹤0.01%
316,700
+244,200
+337% +$2.79M
TELL
1621
CALL
DELISTED
Tellurian Inc.
TELL
$2.61M ﹤0.01%
874,500
+200,000
+30% +$924K
DQ
1622
PUT
Daqo New Energy
DQ
$790M
$2.6M ﹤0.01%
36,500
-87,400
-71% -$4.34M
VERU icon
1623
CALL
Veru
VERU
$36.1M
$2.6M ﹤0.01%
23,020
+14,030
+156% +$1.63M
HRL icon
1624
CALL
Hormel Foods
HRL
$13.9B
$2.6M ﹤0.01%
54,900
-2,400
-4% -$120K
AMED
1625
CALL
DELISTED
Amedisys
AMED
$2.6M ﹤0.01%
24,700
+21,100
+586% +$2.7M

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.