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 | |
|---|---|---|---|---|---|---|
6101
CALL
Towne Bank
TOWN
$3.48B
| $67K | ﹤0.01% |
2,500
+2,200
| +733% | +$62.8K |
|
6102
PUT
Valmont Industries
VMI
$9.43B
| $67K | ﹤0.01% |
+300
| New | +$73.5K |
|
|
VNET
6103
PUT
VNET Group
VNET
$2.04B
| $67K | ﹤0.01% |
11,100
-2,900
| -21% | -$17.2K |
|
|
TVRD
6104
Tvardi Therapeutics
TVRD
$19M
| $67K | ﹤0.01% |
206
+190
| +1,188% | +$66.7K |
|
|
ACCD
6105
DELISTED
Accolade Inc
ACCD
| $67K | ﹤0.01% |
+9,104
| New | +$79.6K |
|
|
ALPP
6106
CALL
DELISTED
Alpine 4 Holdings Inc
ALPP
| $67K | ﹤0.01% |
11,838
+8,925
| +306% | +$57.3K |
|
|
ALEX
6107
CALL
DELISTED
Alexander & Baldwin
ALEX
| $66K | ﹤0.01% |
3,700
-2,500
| -40% | -$51.5K |
|
6108
BioAtla
BCAB
$5.41M
| $66K | ﹤0.01% |
469
+244
| +108% | +$38.8K |
|
6109
Banco Santander Chile
BSAC
$16.4B
| $66K | ﹤0.01% |
4,058
-3,892
| -49% | -$75.6K |
|
6110
PUT
Chunghwa Telecom
CHT
$32.9B
| $66K | ﹤0.01% |
+1,600
| New | +$68.9K |
|
6111
CALL
DocGo
DCGO
$64M
| $66K | ﹤0.01% |
9,300
-15,800
| -63% | -$115K |
|
6112
CALL
Duluth Holdings
DLTH
$158M
| $66K | ﹤0.01% |
7,000
+2,900
| +71% | +$33.7K |
|
6113
CALL
8x8 Inc
EGHT
$292M
| $66K | ﹤0.01% |
12,900
-6,100
| -32% | -$51.1K |
|
6114
PUT
Fate Therapeutics
FATE
$291M
| $66K | ﹤0.01% |
2,700
-2,200
| -45% | -$60.7K |
|
6115
Five Below
FIVE
$12B
| $66K | ﹤0.01% |
589
+100
| +20% | +$14.4K |
|
6116
Gladstone Investment Corp
GAIN
$662M
| $66K | ﹤0.01% |
+4,732
| New | +$71.2K |
|
6117
PUT
Gevo
GEVO
$355M
| $66K | ﹤0.01% |
28,400
-73,600
| -72% | -$269K |
|
6118
PUT
Kingstone Companies
KINS
$292M
| $66K | ﹤0.01% |
16,900
+3,700
| +28% | +$16.8K |
|
6119
PUT
Dorian LPG
LPG
$1.97B
| $66K | ﹤0.01% |
4,400
+3,200
| +267% | +$50.7K |
|
6120
MacroGenics
MGNX
$243M
| $66K | ﹤0.01% |
22,539
+21,177
| +1,555% | +$111K |
|
|
MSB
6121
PUT
Mesabi Trust
MSB
$293M
| $66K | ﹤0.01% |
2,700
-4,400
| -62% | -$114K |
|
6122
ProShares K-1 Free Crude Oil Strategy ETF
OILK
$192M
| $66K | ﹤0.01% |
+1,229
| New | +$69.4K |
|
6123
CALL
Phunware
PHUN
$44.4M
| $66K | ﹤0.01% |
1,230
-2,106
| -63% | -$176K |
|
|
SHOE
6124
CALL
Shoe Station Group
SHOE
$419M
| $66K | ﹤0.01% |
3,100
+2,000
| +182% | +$56.9K |
|
6125
PUT
Tyler Technologies
TYL
$12.5B
| $66K | ﹤0.01% |
200
| – | – |
|
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.