Simplex Trading Portfolio holdings
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.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
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 | |
|---|---|---|---|---|---|---|
|
DAY
4751
CALL
DELISTED
Dayforce
DAY
| $178K | ﹤0.01% |
3,800
-7,000
| -65% | -$389K |
|
|
CLVS
4752
DELISTED
Clovis Oncology, Inc.
CLVS
| $178K | ﹤0.01% |
99,358
-50,486
| -34% | -$74.5K |
|
|
DESP
4753
PUT
DELISTED
Despegar.com
DESP
| $177K | ﹤0.01% |
21,900
+8,800
| +67% | +$84.8K |
|
|
GDEN
4754
CALL
DELISTED
Golden Entertainment
GDEN
| $177K | ﹤0.01% |
4,500
-1,200
| -21% | -$56.5K |
|
|
MESO
4755
CALL
Mesoblast
MESO
$1.84B
| $177K | ﹤0.01% |
40,000
-17,400
| -30% | -$120K |
|
4756
Mercury Systems
MRCY
$5.85B
| $177K | ﹤0.01% |
2,761
-1,105
| -29% | -$65.9K |
|
|
NVNO
4757
CALL
enVVeno Medical
NVNO
$7.1M
| $177K | ﹤0.01% |
1,343
-488
| -27% | -$75.7K |
|
4758
Riskified
RSKD
$694M
| $177K | ﹤0.01% |
39,959
+23,087
| +137% | +$120K |
|
|
EVA
4759
CALL
DELISTED
Enviva Inc.
EVA
| $177K | ﹤0.01% |
3,100
-5,200
| -63% | -$392K |
|
|
OTIC
4760
CALL
DELISTED
Otonomy, Inc.
OTIC
| $177K | ﹤0.01% |
85,200
-42,800
| -33% | -$89.1K |
|
4761
Beam Global
BEEM
$23.5M
| $176K | ﹤0.01% |
11,350
-1,393
| -11% | -$24K |
|
4762
Bloomin' Brands
BLMN
$737M
| $176K | ﹤0.01% |
10,595
-6,980
| -40% | -$142K |
|
4763
CALL
Bit Digital
BTBT
$463M
| $176K | ﹤0.01% |
134,900
-101,600
| -43% | -$201K |
|
4764
CALL
Cato Corp
CATO
$67.7M
| $176K | ﹤0.01% |
15,200
+11,900
| +361% | +$156K |
|
|
ELME
4765
CALL
Elme Communities
ELME
$144M
| $176K | ﹤0.01% |
8,300
+6,000
| +261% | +$143K |
|
4766
PUT
Kontoor Brands
KTB
$4.66B
| $176K | ﹤0.01% |
5,300
+1,500
| +39% | +$58.3K |
|
4767
PUT
Microvision
MVIS
$90.1M
| $176K | ﹤0.01% |
45,900
-179,400
| -80% | -$641K |
|
4768
CALL
Genius Sports
GENI
$1.86B
| $175K | ﹤0.01% |
77,900
+24,100
| +45% | +$81.3K |
|
4769
CALL
GeoPark
GPRK
$634M
| $175K | ﹤0.01% |
13,600
+3,900
| +40% | +$60.9K |
|
4770
Nordic American Tanker
NAT
$1.39B
| $175K | ﹤0.01% |
82,255
-75,464
| -48% | -$180K |
|
4771
CALL
Powell Industries
POWL
$7.77B
| $175K | ﹤0.01% |
+22,500
| New | +$176K |
|
|
PSTL
4772
PUT
Postal Realty Trust
PSTL
$694M
| $175K | ﹤0.01% |
11,800
+10,800
| +1,080% | +$173K |
|
|
LNAI
4773
CALL
Lunai Bioworks
LNAI
$8.98M
| $175K | ﹤0.01% |
1,136
+992
| +689% | +$454K |
|
4774
PUT
Sun Communities
SUI
$15.2B
| $175K | ﹤0.01% |
1,100
+1,000
| +1,000% | +$168K |
|
4775
PUT
UWM Holdings
UWMC
$617M
| $175K | ﹤0.01% |
49,500
+1,700
| +4% | +$6.51K |
|
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.