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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
-4.71%
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
$109B
AUM Growth
+$10.3B
Cap. Flow
+$17.5B
Cap. Flow %
16%
Top 10 Hldgs %
37.15%
Holding
12,038
New
1,603
Increased
4,441
Reduced
4,088
Closed
1,637

Sector Composition

Rank Sector Weight
1 Technology 0.67%
2 Consumer Discretionary 0.37%
3 Industrials 0.24%
4 Healthcare 0.22%
5 Financials 0.19%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
APO icon
1026
CALL
Apollo Global Management
APO
$68.6B
$7.06M 0.01%
113,900
-149,000
-57% -$9.8M
APO icon
1027
PUT
Apollo Global Management
APO
$68.6B
$7.05M 0.01%
113,800
-2,500
-2% -$164K
BBIG
1028
CALL
DELISTED
Vinco Ventures, Inc. Common Stock
BBIG
$7.04M 0.01%
161,744
+36,331
+29% +$1.45M
PLAY icon
1029
PUT
Dave & Buster's
PLAY
$339M
$7.03M 0.01%
143,200
+24,200
+20% +$968K
ACI icon
1030
PUT
Albertsons Companies
ACI
$5.6B
$7.03M 0.01%
211,400
+179,700
+567% +$5.59M
ROK icon
1031
PUT
Rockwell Automation
ROK
$51.3B
$7.03M 0.01%
25,100
+17,500
+230% +$5.03M
DOCN icon
1032
CALL
DigitalOcean
DOCN
$15.3B
$7.02M 0.01%
121,300
+19,700
+19% +$1.15M
WIX icon
1033
PUT
WIX.com
WIX
$2.04B
$7.01M 0.01%
67,100
-7,400
-10% -$808K
BTI icon
1034
British American Tobacco
BTI
$129B
$7M 0.01%
+166,006
New +$7.08M
WSM icon
1035
CALL
Williams-Sonoma
WSM
$25.7B
$6.97M 0.01%
96,200
+34,400
+56% +$2.6M
DT icon
1036
PUT
Dynatrace
DT
$11.8B
$6.9M 0.01%
146,500
+56,400
+63% +$2.66M
DINO icon
1037
CALL
HF Sinclair
DINO
$16.1B
$6.89M 0.01%
172,900
+158,700
+1,118% +$5.58M
GIS icon
1038
CALL
General Mills
GIS
$19B
$6.87M 0.01%
101,500
+27,400
+37% +$1.84M
GRMN
1039
CALL
Garmin
GRMN
$46.3B
$6.87M 0.01%
57,900
+6,500
+13% +$782K
VTNR
1040
CALL
DELISTED
Vertex Energy, Inc
VTNR
$6.86M 0.01%
690,400
+244,700
+55% +$1.5M
ALL icon
1041
CALL
Allstate
ALL
$65.5B
$6.86M 0.01%
49,500
-107,700
-69% -$13.5M
NFLX icon
1042
Netflix
NFLX
$287B
$6.83M 0.01%
182,230
+35,520
+24% +$1.48M
HSBC icon
1043
PUT
HSBC
HSBC
$349B
$6.78M 0.01%
198,000
+22,000
+13% +$759K
RITM icon
1044
CALL
Rithm Capital
RITM
$5.01B
$6.77M 0.01%
616,900
+422,700
+218% +$4.48M
SPWR
1045
CALL
DELISTED
SunPower Corporation Common Stock
SPWR
$6.76M 0.01%
314,800
-32,100
-9% -$590K
EXE
1046
CALL
Expand Energy Corp
EXE
$21.9B
$6.76M 0.01%
77,700
+17,800
+30% +$1.31M
PFE icon
1047
Pfizer
PFE
$143B
$6.76M 0.01%
130,516
+97,654
+297% +$5.07M
JNK icon
1048
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.24B
$6.73M 0.01%
65,675
+46,724
+247% +$4.87M
JWN
1049
CALL
DELISTED
Nordstrom
JWN
$6.73M 0.01%
248,200
-42,800
-15% -$1M
PAAS icon
1050
CALL
Pan American Silver
PAAS
$18.6B
$6.72M 0.01%
246,300
+187,200
+317% +$4.61M

Similar funds

Simplex Trading's Q1 2022 Portfolio in Review

As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.

Simplex Trading deployed $17.5B of net new capital in Q1 2022, opening 1,603 new positions and adding to 4,441 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.

By sector, the portfolio is most concentrated in Technology at 0.67% of assets, up from 0.61% a quarter earlier, followed by Consumer Discretionary and Industrials.

On the sell side, the largest reduction was Verizon, an estimated $42.5M trimmed.

  • Simplex Trading's largest Q1 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
  • Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
  • Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
  • Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
  • Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
  • Simplex Trading opened 1,603 new positions and closed 1,637 in Q1 2022.
  • Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.

Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.