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 |
Apple
AAPL
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
201
Seagate
STX
$37.5B
| $3.05M | ﹤0.01% |
35,339
-925
| -3% | -$79.8K |
|
202
Celanese
CE
$4.89B
| $3.02M | ﹤0.01% |
+43,696
| New | +$3.02M |
|
203
Invitation Homes
INVH
$18.5B
| $3.02M | ﹤0.01% |
94,410
-73,667
| -44% | -$2.35M |
|
204
Invesco S&P 500 Equal Weight ETF
RSP
$73.5B
| $2.98M | ﹤0.01% |
+16,996
| New | +$2.98M |
|
205
Gilead Sciences
GILD
$140B
| $2.96M | ﹤0.01% |
32,076
-27,777
| -46% | -$2.57M |
|
206
First Horizon
FHN
$11.4B
| $2.96M | ﹤0.01% |
146,930
+58,777
| +67% | +$1.18M |
|
207
Axon Enterprise
AXON
$56.9B
| $2.95M | ﹤0.01% |
+4,964
| New | +$2.95M |
|
208
Cameco
CCJ
$33.6B
| $2.92M | ﹤0.01% |
+56,796
| New | +$2.92M |
|
209
AES
AES
$9.42B
| $2.9M | ﹤0.01% |
+225,238
| New | +$2.9M |
|
210
Canadian Solar
CSIQ
$663M
| $2.89M | ﹤0.01% |
259,777
-230,097
| -47% | -$2.56M |
|
211
Brinker International
EAT
$7.08B
| $2.87M | ﹤0.01% |
+21,669
| New | +$2.87M |
|
|
EH
212
EHang Holdings
EH
$1.15B
| $2.86M | ﹤0.01% |
181,859
+128,868
| +243% | +$2.03M |
|
213
Goldman Sachs
GS
$221B
| $2.86M | ﹤0.01% |
4,995
+1,353
| +37% | +$775K |
|
214
Enlight Renewable Energy
ENLT
$3.35B
| $2.82M | ﹤0.01% |
+163,608
| New | +$2.82M |
|
215
Dollar General
DG
$24.1B
| $2.79M | ﹤0.01% |
36,794
+35,339
| +2,429% | +$2.68M |
|
216
Dutch Bros
BROS
$9.1B
| $2.72M | ﹤0.01% |
51,950
+34,425
| +196% | +$1.8M |
|
217
Goodyear
GT
$2.4B
| $2.71M | ﹤0.01% |
300,691
+199,794
| +198% | +$1.8M |
|
|
TIGR
218
UP Fintech Holding
TIGR
$2.31B
| $2.69M | ﹤0.01% |
416,235
+145,450
| +54% | +$939K |
|
219
YieldMax MSTR Option Income Strategy ETF
MSTY
$4.63B
| $2.68M | ﹤0.01% |
101,723
+100,012
| +5,845% | +$2.63M |
|
220
KB Home
KBH
$4.34B
| $2.65M | ﹤0.01% |
+40,393
| New | +$2.65M |
|
221
The Mosaic Company
MOS
$10.4B
| $2.63M | ﹤0.01% |
107,052
+36,245
| +51% | +$891K |
|
222
Signet Jewelers
SIG
$3.65B
| $2.62M | ﹤0.01% |
32,449
+12,136
| +60% | +$979K |
|
223
CME Group
CME
$97.1B
| $2.59M | ﹤0.01% |
+11,162
| New | +$2.59M |
|
224
Vodafone
VOD
$28.2B
| $2.57M | ﹤0.01% |
302,794
-134,938
| -31% | -$1.15M |
|
225
Sunrun
RUN
$3.8B
| $2.56M | ﹤0.01% |
276,451
+161,117
| +140% | +$1.49M |
|