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 | |
|---|---|---|---|---|---|---|
2326
CALL
Natera
NTRA
$37.5B
| $1.61M | ﹤0.01% |
39,700
+35,100
| +763% | +$2.11M |
|
2327
CALL
Perion Network
PERI
$367M
| $1.61M | ﹤0.01% |
71,700
+22,400
| +45% | +$477K |
|
2328
CALL
Ball Corp
BALL
$17B
| $1.61M | ﹤0.01% |
17,900
-6,100
| -25% | -$555K |
|
2329
CALL
Costamare
CMRE
$1.9B
| $1.61M | ﹤0.01% |
94,300
+64,500
| +216% | +$920K |
|
|
GREE
2330
Vulcan Infrastructure and Power Inc. Class A Common Stock
GREE
| $1.6M | ﹤0.01% |
18,667
+3,422
| +22% | +$379K |
|
2331
CALL
Groupon
GRPN
$980M
| $1.6M | ﹤0.01% |
83,500
+46,100
| +123% | +$1.02M |
|
|
2332
PUT
Groupon
GRPN
$980M
| $1.6M | ﹤0.01% |
83,500
+28,300
| +51% | +$629K |
|
2333
PUT
Jones Lang LaSalle
JLL
$15.1B
| $1.6M | ﹤0.01% |
6,700
-10,500
| -61% | -$2.56M |
|
2334
CALL
West Pharmaceutical
WST
$23.1B
| $1.6M | ﹤0.01% |
3,900
+1,900
| +95% | +$744K |
|
2335
Bread Financial
BFH
$4.21B
| $1.6M | ﹤0.01% |
28,468
-4,266
| -13% | -$280K |
|
2336
PUT
Nice
NICE
$5.29B
| $1.6M | ﹤0.01% |
7,300
+7,100
| +3,550% | +$1.72M |
|
|
AXON
2337
PUT
Axon Enterprise
AXON
$40.5B
| $1.6M | ﹤0.01% |
11,600
-3,700
| -24% | -$507K |
|
2338
PUT
Global E Online
GLBE
$6.08B
| $1.6M | ﹤0.01% |
47,300
+40,400
| +586% | +$1.52M |
|
2339
MBIA
MBI
$288M
| $1.6M | ﹤0.01% |
103,798
-30,823
| -23% | -$454K |
|
2340
PUT
Carrier Global
CARR
$57.2B
| $1.6M | ﹤0.01% |
34,800
-60,300
| -63% | -$2.84M |
|
2341
PUT
Century Aluminum
CENX
$4.57B
| $1.59M | ﹤0.01% |
60,600
+26,400
| +77% | +$556K |
|
|
HLGN
2342
CALL
DELISTED
Heliogen, Inc.
HLGN
| $1.59M | ﹤0.01% |
8,649
+6,652
| +333% | +$1.21M |
|
|
AAWW
2343
CALL
DELISTED
Atlas Air Worldwide Holdings, Inc.
AAWW
| $1.59M | ﹤0.01% |
18,400
+3,500
| +23% | +$288K |
|
2344
PUT
Conagra Brands
CAG
$7.07B
| $1.59M | ﹤0.01% |
47,300
-18,800
| -28% | -$641K |
|
2345
iShares S&P 500 Growth ETF
IVW
$72.5B
| $1.58M | ﹤0.01% |
20,759
-6,078
| -23% | -$457K |
|
2346
PUT
W.P. Carey
WPC
$17.1B
| $1.58M | ﹤0.01% |
20,012
+13,784
| +221% | +$1.06M |
|
|
SKX
2347
DELISTED
Skechers
SKX
| $1.58M | ﹤0.01% |
+38,856
| New | +$1.66M |
|
2348
PUT
Children's Place
PLCE
$53.6M
| $1.58M | ﹤0.01% |
32,100
+17,700
| +123% | +$1.13M |
|
2349
PUT
Lightspeed Commerce
LSPD
$1.3B
| $1.58M | ﹤0.01% |
51,900
-50,500
| -49% | -$1.5M |
|
2350
PUT
Cenovus Energy
CVE
$54.6B
| $1.58M | ﹤0.01% |
94,600
-71,600
| -43% | -$1.09M |
|
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.