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
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
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 | |
|---|---|---|---|---|---|---|
6751
PUT
ASE Group
ASX
$80.7B
| $65K | ﹤0.01% |
9,200
+1,200
| +15% | +$8.81K |
|
6752
CALL
BOK Financial
BOKF
$8.74B
| $65K | ﹤0.01% |
700
+100
| +17% | +$10.3K |
|
6753
CALL
Brown & Brown
BRO
$24B
| $65K | ﹤0.01% |
900
-9,500
| -91% | -$637K |
|
6754
PUT
CrossAmerica Partners
CAPL
$811M
| $65K | ﹤0.01% |
3,000
+2,000
| +200% | +$41.7K |
|
6755
PUT
Chefs' Warehouse
CHEF
$4.54B
| $65K | ﹤0.01% |
2,000
-4,600
| -70% | -$145K |
|
6756
Compass
COMP
$8.78B
| $65K | ﹤0.01% |
+8,345
| New | +$65.7K |
|
6757
Cardiff Oncology
CRDF
$72.7M
| $65K | ﹤0.01% |
26,507
-33,629
| -56% | -$119K |
|
|
HDSN
6758
CALL
Hudson Technologies
HDSN
$262M
| $65K | ﹤0.01% |
10,600
+7,200
| +212% | +$31.9K |
|
6759
Harrow
HROW
$1.46B
| $65K | ﹤0.01% |
+9,587
| New | +$74K |
|
6760
CALL
Hexcel
HXL
$7.73B
| $65K | ﹤0.01% |
1,100
+200
| +22% | +$11K |
|
6761
PUT
indie Semiconductor
INDI
$716M
| $65K | ﹤0.01% |
8,400
-20,100
| -71% | -$165K |
|
6762
PUT
Kaiser Aluminum
KALU
$2.68B
| $65K | ﹤0.01% |
700
-100
| -13% | -$9.65K |
|
6763
CALL
MeiraGTx Holdings
MGTX
$1.1B
| $65K | ﹤0.01% |
4,700
+2,300
| +96% | +$35.4K |
|
6764
PUT
Orthofix Medical
OFIX
$496M
| $65K | ﹤0.01% |
+2,000
| New | +$64.3K |
|
6765
Ferrari
RACE
$70.5B
| $65K | ﹤0.01% |
+300
| New | +$67K |
|
6766
PUT
Recursion Pharmaceuticals
RXRX
$1.69B
| $65K | ﹤0.01% |
9,100
+6,800
| +296% | +$72.3K |
|
6767
PUT
Simpson Manufacturing
SSD
$7.91B
| $65K | ﹤0.01% |
+600
| New | +$71.1K |
|
6768
PUT
The Bancorp
TBBK
$2.96B
| $65K | ﹤0.01% |
+2,300
| New | +$66.3K |
|
6769
Interface
TILE
$2.03B
| $65K | ﹤0.01% |
4,830
+430
| +10% | +$5.93K |
|
6770
PUT
Televisa
TV
$1.48B
| $65K | ﹤0.01% |
5,600
-3,500
| -38% | -$36.3K |
|
|
YALA
6771
Yalla Group
YALA
$840M
| $65K | ﹤0.01% |
+14,544
| New | +$83.9K |
|
|
CMRX
6772
PUT
DELISTED
Chimerix, Inc.
CMRX
| $65K | ﹤0.01% |
14,300
+4,500
| +46% | +$25.1K |
|
|
SOLO
6773
DELISTED
Electrameccanica Vehicles Corp. Ltd.
SOLO
| $65K | ﹤0.01% |
30,331
+28,931
| +2,067% | +$60K |
|
|
INFI
6774
CALL
DELISTED
Infinity Pharmaceuticals, Inc.
INFI
| $65K | ﹤0.01% |
57,500
-33,100
| -37% | -$39.6K |
|
|
LTCH
6775
CALL
DELISTED
Latch, Inc. Common Stock
LTCH
| $65K | ﹤0.01% |
15,300
-31,500
| -67% | -$165K |
|
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.