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 | |
|---|---|---|---|---|---|---|
6726
CALL
Freshpet
FRPT
$2.93B
| $41K | ﹤0.01% |
800
-1,400
| -64% | -$108K |
|
6727
Incyte
INCY
$24.2B
| $41K | ﹤0.01% |
545
-451
| -45% | -$34.2K |
|
6728
CALL
Lisata Therapeutics
LSTA
$9.02M
| $41K | ﹤0.01% |
5,160
-2,740
| -35% | -$22.6K |
|
|
IMDX
6729
CALL
Insight Molecular Diagnostics
IMDX
$150M
| $41K | ﹤0.01% |
2,330
+2,120
| +1,010% | +$48.2K |
|
6730
Rambus
RMBS
$9.87B
| $41K | ﹤0.01% |
1,931
-2,250
| -54% | -$55.7K |
|
|
SACH
6731
PUT
Sachem Capital Corp
SACH
$39.1M
| $41K | ﹤0.01% |
10,100
+9,300
| +1,163% | +$43.7K |
|
6732
Comscore
SCOR
$106M
| $41K | ﹤0.01% |
1,005
+1,004
| +100,400% | +$41.7K |
|
6733
PUT
Steven Madden
SHOO
$3.37B
| $41K | ﹤0.01% |
1,300
+900
| +225% | +$34.1K |
|
|
SII
6734
CALL
Sprott
SII
$2.66B
| $41K | ﹤0.01% |
1,200
+200
| +20% | +$8.37K |
|
6735
Sterling Infrastructure
STRL
$18.3B
| $41K | ﹤0.01% |
1,898
-762
| -29% | -$18.3K |
|
6736
Texas Capital Bancshares
TCBI
$4.3B
| $41K | ﹤0.01% |
+782
| New | +$41.9K |
|
6737
CALL
Vital Farms
VITL
$545M
| $41K | ﹤0.01% |
4,700
-7,400
| -61% | -$78.8K |
|
6738
Invesco S&P 500 Top 50 ETF
XLG
$10.6B
| $41K | ﹤0.01% |
1,460
+1,000
| +217% | +$31.2K |
|
|
NBIS
6739
CALL
Nebius Group N.V.
NBIS
$48.3B
| $41K | ﹤0.01% |
122,300
-19,800
| -14% | -$6.64K |
|
|
TPC
6740
PUT
Tutor Perini Cor
TPC
$4.41B
| $41K | ﹤0.01% |
4,700
-18,900
| -80% | -$182K |
|
|
QUOT
6741
DELISTED
Quotient Technology Inc
QUOT
| $41K | ﹤0.01% |
+13,806
| New | +$65.5K |
|
|
DICE
6742
CALL
DELISTED
DICE Therapeutics, Inc. Common Stock
DICE
| $41K | ﹤0.01% |
+2,700
| New | +$46.4K |
|
|
LUXA
6743
CALL
DELISTED
Lux Health Tech Acquisition Corp. Class A Common Stock
LUXA
| $41K | ﹤0.01% |
4,200
-1,200
| -22% | -$11.8K |
|
|
EVFM
6744
DELISTED
Evofem Biosciences, Inc. Common Stock
EVFM
| $41K | ﹤0.01% |
36,503
+35,970
| +6,749% | +$59.3K |
|
6745
CALL
ADC Therapeutics
ADCT
$134M
| $40K | ﹤0.01% |
5,100
+100
| +2% | +$946 |
|
6746
Build-A-Bear
BBW
$425M
| $40K | ﹤0.01% |
2,474
-14,715
| -86% | -$269K |
|
6747
CALL
Clearwater Paper
CLW
$339M
| $40K | ﹤0.01% |
1,200
+900
| +300% | +$28.2K |
|
6748
CALL
America's Car Mart
CRMT
$26.6M
| $40K | ﹤0.01% |
+400
| New | +$36.4K |
|
6749
CALL
Euronet Worldwide
EEFT
$2.72B
| $40K | ﹤0.01% |
400
-6,800
| -94% | -$805K |
|
6750
PUT
Eldorado Gold
EGO
$7.87B
| $40K | ﹤0.01% |
6,300
-78,900
| -93% | -$717K |
|
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.