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
|
$45.7M |
| 2 |
Walmart
WMT
|
$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$33.2M |
| 5 |
Citigroup
C
|
$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
$111M |
| 3 |
NVIDIA
NVDA
|
$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
$60.9M |
| 5 |
Procter & Gamble
PG
|
$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
126
Rio Tinto
RIO
$103B
| $3.72M | ﹤0.01% |
54,173
+45,364
| +515% | +$3.11M |
|
|
VMW
127
DELISTED
VMware, Inc
VMW
| $3.71M | ﹤0.01% |
29,705
+25,088
| +543% | +$3.13M |
|
128
Direxion Daily 20+ Year Treasury Bull 3X Shares
TMF
$5.27B
| $3.63M | ﹤0.01% |
40,912
+2,337
| +6% | +$208K |
|
129
Goodyear
GT
$2.43B
| $3.56M | ﹤0.01% |
323,032
+27,881
| +9% | +$307K |
|
130
Southwest Airlines
LUV
$16.5B
| $3.53M | ﹤0.01% |
108,597
-111,940
| -51% | -$3.64M |
|
131
Plug Power
PLUG
$1.66B
| $3.5M | ﹤0.01% |
+298,727
| New | +$3.5M |
|
132
Best Buy
BBY
$16.3B
| $3.47M | ﹤0.01% |
+44,316
| New | +$3.47M |
|
133
SoFi Technologies
SOFI
$29.2B
| $3.42M | ﹤0.01% |
563,435
+33,213
| +6% | +$202K |
|
|
HZNP
134
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
| $3.33M | ﹤0.01% |
30,506
-8,287
| -21% | -$904K |
|
135
Hanesbrands
HBI
$2.25B
| $3.29M | ﹤0.01% |
625,152
+536,377
| +604% | +$2.82M |
|
136
Vanguard Russell 2000 Growth ETF
VTWG
$1.07B
| $3.29M | ﹤0.01% |
19,914
-2,160
| -10% | -$356K |
|
137
Western Digital
WDC
$31.8B
| $3.29M | ﹤0.01% |
+115,419
| New | +$3.29M |
|
138
KeyCorp
KEY
$20.7B
| $3.28M | ﹤0.01% |
+261,713
| New | +$3.28M |
|
139
Vanguard Growth ETF
VUG
$186B
| $3.22M | ﹤0.01% |
+12,926
| New | +$3.22M |
|
140
AGNC Investment
AGNC
$10.8B
| $3.22M | ﹤0.01% |
319,177
-42,361
| -12% | -$427K |
|
141
Linde
LIN
$220B
| $3.14M | ﹤0.01% |
+8,823
| New | +$3.14M |
|
142
Antero Resources
AR
$9.89B
| $3.12M | ﹤0.01% |
+135,143
| New | +$3.12M |
|
143
Okta
OKTA
$16B
| $3.11M | ﹤0.01% |
+36,042
| New | +$3.11M |
|
144
Vertex Pharmaceuticals
VRTX
$102B
| $3.08M | ﹤0.01% |
9,790
+9,224
| +1,630% | +$2.91M |
|
145
Vanguard Total Stock Market ETF
VTI
$527B
| $3.08M | ﹤0.01% |
15,103
+15,018
| +17,668% | +$3.06M |
|
146
Madrigal Pharmaceuticals
MDGL
$9.7B
| $3M | ﹤0.01% |
+12,364
| New | +$3M |
|
147
iShares TIPS Bond ETF
TIP
$13.6B
| $2.96M | ﹤0.01% |
26,832
+26,677
| +17,211% | +$2.94M |
|
|
AY
148
DELISTED
Atlantica Sustainable Infrastructure plc Ordinary Shares
AY
| $2.92M | ﹤0.01% |
98,819
+95,436
| +2,821% | +$2.82M |
|
149
Aurinia Pharmaceuticals
AUPH
$1.65B
| $2.87M | ﹤0.01% |
261,570
+101,670
| +64% | +$1.11M |
|
|
WBA
150
DELISTED
Walgreens Boots Alliance
WBA
| $2.84M | ﹤0.01% |
+82,272
| New | +$2.84M |
|