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 | |
|---|---|---|---|---|---|---|
4226
PUT
American Resources Corp
AREC
$187M
| $378K | ﹤0.01% |
147,300
+67,600
| +85% | +$137K |
|
4227
PUT
Banco Macro
BMA
$5.88B
| $378K | ﹤0.01% |
21,900
-41,500
| -65% | -$609K |
|
|
GTY
4228
CALL
Getty Realty Corp
GTY
$2.15B
| $377K | ﹤0.01% |
13,200
+11,500
| +676% | +$332K |
|
4229
CALL
International Seaways
INSW
$4.73B
| $377K | ﹤0.01% |
20,900
-15,900
| -43% | -$258K |
|
4230
PUT
iRhythm Holdings
IRTC
$4.05B
| $377K | ﹤0.01% |
2,400
-2,000
| -45% | -$257K |
|
4231
PUT
Flowserve
FLS
$9.11B
| $376K | ﹤0.01% |
10,500
-39,200
| -79% | -$1.28M |
|
4232
PUT
Lloyds Banking Group
LYG
$86.5B
| $376K | ﹤0.01% |
156,200
+6,400
| +4% | +$17K |
|
4233
Blink Charging
BLNK
$68.9M
| $375K | ﹤0.01% |
14,205
+10,936
| +335% | +$257K |
|
4234
WEX
WEX
$6.51B
| $375K | ﹤0.01% |
+2,107
| New | +$344K |
|
|
EMBK
4235
CALL
DELISTED
Embark Technology, Inc. Common Stock
EMBK
| $375K | ﹤0.01% |
3,185
-8,855
| -74% | -$858K |
|
4236
PUT
Shenandoah Telecom
SHEN
$715M
| $374K | ﹤0.01% |
15,900
-10,900
| -41% | -$246K |
|
|
GTHX
4237
CALL
DELISTED
G1 Therapeutics, Inc. Common Stock
GTHX
| $374K | ﹤0.01% |
49,300
+38,700
| +365% | +$367K |
|
|
NETI
4238
DELISTED
Eneti Inc.
NETI
| $374K | ﹤0.01% |
+58,995
| New | +$400K |
|
4239
PUT
Costamare
CMRE
$1.87B
| $373K | ﹤0.01% |
21,900
+5,300
| +32% | +$75.6K |
|
4240
CALL
Insteel Industries
IIIN
$606M
| $373K | ﹤0.01% |
10,100
+10,000
| +10,000% | +$388K |
|
4241
PUT
United States Gasoline Fund
UGA
$146M
| $373K | ﹤0.01% |
6,700
+5,900
| +738% | +$300K |
|
4242
PUT
Brookdale Senior Living
BKD
$3.61B
| $371K | ﹤0.01% |
52,700
+11,200
| +27% | +$68.4K |
|
4243
CALL
Chefs' Warehouse
CHEF
$4.47B
| $371K | ﹤0.01% |
11,400
-26,900
| -70% | -$845K |
|
4244
PUT
Calumet Specialty Products
CLMT
$3.73B
| $371K | ﹤0.01% |
27,300
-9,800
| -26% | -$144K |
|
4245
Carlisle Companies
CSL
$13.4B
| $371K | ﹤0.01% |
1,512
+374
| +33% | +$87.7K |
|
|
JKS
4246
JinkoSolar
JKS
$790M
| $371K | ﹤0.01% |
+7,700
| New | +$354K |
|
|
SGMO
4247
CALL
DELISTED
SANGAMO THERAPEUTICS INC
SGMO
| $371K | ﹤0.01% |
64,000
-61,800
| -49% | -$367K |
|
|
VLDR
4248
DELISTED
Velodyne Lidar, Inc. Common Stock
VLDR
| $371K | ﹤0.01% |
144,925
+62,203
| +75% | +$213K |
|
|
GBT
4249
DELISTED
Global Blood Therapeutics, Inc.
GBT
| $371K | ﹤0.01% |
+10,714
| New | +$320K |
|
4250
CALL
Dorman Products
DORM
$4.32B
| $370K | ﹤0.01% |
3,900
-1,100
| -22% | -$107K |
|
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.