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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
+6.28%
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
$91.9B
AUM Growth
+$3.47B
Cap. Flow
+$1.91B
Cap. Flow %
2.08%
Top 10 Hldgs %
34.1%
Holding
11,206
New
1,219
Increased
3,365
Reduced
4,370
Closed
1,942

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$170M
2
QQQ icon
Invesco QQQ Trust
QQQ
+$71.3M
3
T icon
AT&T
T
+$44.2M
4
META icon
Meta Platforms (Facebook)
META
+$37.1M
5
EEM icon
iShares MSCI Emerging Markets ETF
EEM
+$34.4M

Top Sells

Rank Stock Value
1
MSFT icon
Microsoft
MSFT
+$94.3M
2
JPM icon
JPMorgan Chase
JPM
+$68.2M
3
C icon
Citigroup
C
+$62.8M
4
BRK.B icon
Berkshire Hathaway Class B
BRK.B
+$50.9M
5
GLD icon
SPDR Gold Trust
GLD
+$46.3M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 0.38%
2 Technology 0.35%
3 Communication Services 0.24%
4 Healthcare 0.2%
5 Consumer Staples 0.13%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HESM icon
9651
Hess Midstream
HESM
$5.22B
– –
-765
Closed -$21.8K
HERO icon
9652
Global X Video Games & Esports ETF
HERO
$60.4M
$0 ﹤0.01%
6
-49
-89% -$892
HFFG icon
9653
HF Foods Group
HFFG
$82.9M
– –
-38
Closed -$160
HGTY icon
9654
Hagerty
HGTY
$1.19B
$0 ﹤0.01%
38
-673
-95% -$5.85K
HGV icon
9655
PUT
Hilton Grand Vacations
HGV
$3.84B
– –
-3,000
Closed -$98K
HIPO icon
9656
CALL
Hippo Holdings
HIPO
$723M
– –
-8,200
Closed -$151K
HIPO icon
9657
Hippo Holdings
HIPO
$723M
– –
-12
Closed –
HLI icon
9658
CALL
Houlihan Lokey
HLI
$9.68B
– –
-100
Closed -$7K
HLX icon
9659
Helix Energy Solutions
HLX
$1.46B
– –
-69,310
Closed -$416K
HMC icon
9660
Honda
HMC
$36.5B
– –
-6,262
Closed -$145K
HMN icon
9661
Horace Mann Educators
HMN
$2.1B
– –
-100
Closed -$3K
HMN icon
9662
PUT
Horace Mann Educators
HMN
$2.1B
– –
-100
Closed -$3K
HMY icon
9663
Harmony Gold Mining
HMY
$9.92B
– –
-44,473
Closed -$140K
HNI icon
9664
HNI Corp
HNI
$3B
– –
-36
Closed -$1.02K
HNI icon
9665
PUT
HNI Corp
HNI
$3B
– –
-100
Closed -$2K
HOFT icon
9666
Hooker Furnishings Corp
HOFT
$148M
– –
-25
Closed –
HOFT icon
9667
PUT
Hooker Furnishings Corp
HOFT
$148M
– –
-100
Closed -$1K
HOOK
9668
DELISTED
HOOKIPA Pharma
HOOK
– –
-337
Closed -$3.65K
HOOK
9669
PUT
DELISTED
HOOKIPA Pharma
HOOK
– –
-700
Closed -$9K
HPP
9670
Hudson Pacific Properties
HPP
$834M
– –
-1,870
Closed -$139K
HRL icon
9671
Hormel Foods
HRL
$13.9B
– –
-18,724
Closed -$872K
HRB icon
9672
H&R Block
HRB
$5.18B
– –
-10,328
Closed -$420K
HRMY icon
9673
Harmony Biosciences
HRMY
$2.04B
– –
-730
Closed -$40.1K
HROW icon
9674
Harrow
HROW
$1.43B
– –
-1,764
Closed -$21.1K
HRTG icon
9675
PUT
Heritage Insurance Holdings
HRTG
$842M
– –
-500
Closed -$1K
385 386
387
388 389

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Simplex Trading's Q4 2022 Portfolio in Review

As of Q4 2022, Simplex Trading held 11,206 positions worth $91.9B, up 3.9% from $88.5B the previous quarter. Its ten largest holdings account for 34% of the portfolio.

Simplex Trading's Q4 2022 filing shows 1,219 new, 3,365 increased, 4,370 reduced and 1,942 closed positions. Its largest new stake was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M. The largest sale was Microsoft, an estimated $94.3M.

By sector, the portfolio is most concentrated in Consumer Discretionary at 0.38% of assets, up from 0.3% a quarter earlier, followed by Technology and Communication Services.

  • Simplex Trading's largest Q4 2022 buy was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M.
  • Simplex Trading added most to Amazon in Q4 2022, an estimated $170M increase.
  • Simplex Trading's biggest Q4 2022 reduction was Microsoft, cutting an estimated $94.3M.
  • Simplex Trading fully exited JPMorgan Chase in Q4 2022, selling an estimated $68.2M.
  • Simplex Trading's ten largest holdings make up 34% of its $91.9B portfolio in Q4 2022.
  • Simplex Trading opened 1,219 new positions and closed 1,942 in Q4 2022.
  • Simplex Trading's portfolio value rose 3.9% quarter-over-quarter to $91.9B.

Based on Simplex Trading's 13F filing for Q4 2022, filed 2 Feb 2023.