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
| 1 |
NVIDIA
NVDA
|
$60M |
| 2 |
Microsoft
MSFT
|
$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$52.5M |
| 4 |
PayPal
PYPL
|
$40.9M |
| 5 |
Netflix
NFLX
|
$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
$48.7M |
| 2 |
Walmart
WMT
|
$45.2M |
| 3 |
Adobe
ADBE
|
$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
$34.2M |
| 5 |
Enphase Energy
ENPH
|
$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
176
QuantumScape
QS
$4.44B
| $2.69M | ﹤0.01% |
336,116
+333,286
| +11,777% | +$2.66M |
|
|
JNPR
177
DELISTED
Juniper Networks
JNPR
| $2.68M | ﹤0.01% |
85,435
+76,305
| +836% | +$2.39M |
|
178
Monolithic Power Systems
MPWR
$41.5B
| $2.67M | ﹤0.01% |
4,951
+4,615
| +1,374% | +$2.49M |
|
179
Navios Maritime Partners
NMM
$1.42B
| $2.61M | ﹤0.01% |
119,446
+68,403
| +134% | +$1.49M |
|
180
Duke Energy
DUK
$93.8B
| $2.6M | ﹤0.01% |
+28,917
| New | +$2.6M |
|
181
Palo Alto Networks
PANW
$130B
| $2.59M | ﹤0.01% |
+20,306
| New | +$2.59M |
|
182
Akero Therapeutics
AKRO
$3.58B
| $2.57M | ﹤0.01% |
55,001
+47,387
| +622% | +$2.21M |
|
|
ABB
183
DELISTED
ABB Ltd.
ABB
| $2.56M | ﹤0.01% |
65,156
+9,260
| +17% | +$364K |
|
184
Invesco NASDAQ 100 ETF
QQQM
$59.3B
| $2.55M | ﹤0.01% |
16,795
-30,694
| -65% | -$4.66M |
|
185
Pan American Silver
PAAS
$14.6B
| $2.55M | ﹤0.01% |
174,923
-110,919
| -39% | -$1.62M |
|
186
Agilent Technologies
A
$36.5B
| $2.54M | ﹤0.01% |
+21,129
| New | +$2.54M |
|
187
DigitalBridge
DBRG
$2.04B
| $2.54M | ﹤0.01% |
+172,701
| New | +$2.54M |
|
188
Arcus Biosciences
RCUS
$1.3B
| $2.53M | ﹤0.01% |
124,541
+115,943
| +1,348% | +$2.35M |
|
189
Accenture
ACN
$159B
| $2.53M | ﹤0.01% |
8,194
-42,885
| -84% | -$13.2M |
|
190
Confluent
CFLT
$6.67B
| $2.52M | ﹤0.01% |
+71,250
| New | +$2.52M |
|
191
Rivian
RIVN
$17.2B
| $2.51M | ﹤0.01% |
+150,885
| New | +$2.51M |
|
192
Zillow
Z
$21.3B
| $2.51M | ﹤0.01% |
49,961
+43,962
| +733% | +$2.21M |
|
193
MaxLinear
MXL
$1.36B
| $2.48M | ﹤0.01% |
+78,618
| New | +$2.48M |
|
|
DM
194
DELISTED
Desktop Metal, Inc.
DM
| $2.48M | ﹤0.01% |
140,204
+27,675
| +25% | +$490K |
|
195
ProShares UltraPro S&P 500
UPRO
$4.49B
| $2.46M | ﹤0.01% |
+51,950
| New | +$2.46M |
|
196
Bath & Body Works
BBWI
$6.06B
| $2.45M | ﹤0.01% |
65,460
+47,067
| +256% | +$1.76M |
|
197
Doximity
DOCS
$13B
| $2.45M | ﹤0.01% |
+72,079
| New | +$2.45M |
|
198
Paychex
PAYX
$48.7B
| $2.45M | ﹤0.01% |
21,923
+16,436
| +300% | +$1.84M |
|
199
KB Home
KBH
$4.63B
| $2.42M | ﹤0.01% |
+46,827
| New | +$2.42M |
|
200
Direxion Daily S&P Oil & Gas Exp & Prod Bull 2X Shares
GUSH
$246M
| $2.42M | ﹤0.01% |
+79,736
| New | +$2.42M |
|