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 |
Microsoft
MSFT
|
$101M |
| 2 |
NVIDIA
NVDA
|
$66M |
| 3 |
Citigroup
C
|
$51.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
$42.7M |
| 5 |
SPDR Gold Trust
GLD
|
$39.4M |
Top Sells
| 1 |
Apple
AAPL
|
$411M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
$64M |
| 3 |
Meta Platforms (Facebook)
META
|
$39.8M |
| 4 |
iShares Core S&P 500 ETF
IVV
|
$34.3M |
| 5 |
PayPal
PYPL
|
$32.9M |
Sector Composition
| 1 | Technology | 17.4% |
| 2 | Financials | 12.04% |
| 3 | Consumer Discretionary | 10.17% |
| 4 | Healthcare | 8.63% |
| 5 | Industrials | 6.03% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
126
Direxion Daily Small Cap Bull 3x Shares
TNA
$2.14B
| $3.96M | ﹤0.01% |
+137,417
| New | +$3.96M |
|
127
iShares Russell 2000 Value ETF
IWN
$11.7B
| $3.96M | ﹤0.01% |
+30,692
| New | +$3.96M |
|
128
General Motors
GM
$55.1B
| $3.92M | ﹤0.01% |
122,265
-347,740
| -74% | -$11.2M |
|
129
Direxion Daily Junior Gold Miners Index Bear 2X Shares
JDST
$49.3M
| $3.92M | ﹤0.01% |
27,489
-7,491
| -21% | -$1.07M |
|
130
Veru
VERU
$48.8M
| $3.91M | ﹤0.01% |
33,944
+32,842
| +2,980% | +$3.78M |
|
131
Fortinet
FTNT
$57.6B
| $3.87M | ﹤0.01% |
78,676
+30,008
| +62% | +$1.47M |
|
132
Cardinal Health
CAH
$36.1B
| $3.84M | ﹤0.01% |
57,621
+8,838
| +18% | +$589K |
|
133
HDFC Bank
HDB
$180B
| $3.84M | ﹤0.01% |
65,759
+48,591
| +283% | +$2.84M |
|
134
Zscaler
ZS
$41.6B
| $3.82M | ﹤0.01% |
23,214
+16,357
| +239% | +$2.69M |
|
135
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$682M
| $3.81M | ﹤0.01% |
+5,935
| New | +$3.81M |
|
136
SAP
SAP
$317B
| $3.81M | ﹤0.01% |
46,915
-4,114
| -8% | -$334K |
|
137
XPeng
XPEV
$18.9B
| $3.8M | ﹤0.01% |
318,071
+316,221
| +17,093% | +$3.78M |
|
138
Ulta Beauty
ULTA
$23.7B
| $3.79M | ﹤0.01% |
+9,439
| New | +$3.79M |
|
139
Goldman Sachs
GS
$223B
| $3.79M | ﹤0.01% |
12,919
-33,522
| -72% | -$9.82M |
|
140
Roku
ROKU
$14.5B
| $3.68M | ﹤0.01% |
+65,309
| New | +$3.68M |
|
141
Boston Scientific
BSX
$160B
| $3.62M | ﹤0.01% |
+93,442
| New | +$3.62M |
|
142
Align Technology
ALGN
$9.56B
| $3.53M | ﹤0.01% |
17,061
+4,965
| +41% | +$1.03M |
|
143
Aehr Test Systems
AEHR
$722M
| $3.44M | ﹤0.01% |
+244,023
| New | +$3.44M |
|
144
Pure Storage
PSTG
$24.8B
| $3.43M | ﹤0.01% |
+125,158
| New | +$3.43M |
|
145
Seagate
STX
$37.9B
| $3.38M | ﹤0.01% |
63,482
+25,403
| +67% | +$1.35M |
|
146
Fair Isaac
FICO
$36.7B
| $3.37M | ﹤0.01% |
+8,182
| New | +$3.37M |
|
147
Cencora
COR
$57.6B
| $3.34M | ﹤0.01% |
24,678
-796
| -3% | -$108K |
|
|
VSTO
148
DELISTED
Vista Outdoor Inc.
VSTO
| $3.29M | ﹤0.01% |
135,203
+82,349
| +156% | +$2M |
|
149
Amylyx Pharmaceuticals
AMLX
$873M
| $3.28M | ﹤0.01% |
116,604
-41,486
| -26% | -$1.17M |
|
150
Pan American Silver
PAAS
$12.1B
| $3.24M | ﹤0.01% |
203,998
+80,315
| +65% | +$1.28M |
|