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 | |
|---|---|---|---|---|---|---|
126
Option Care Health
OPCH
$4.72B
| $4.07M | ﹤0.01% |
+125,364
| New | +$4.07M |
|
127
Expedia Group
EXPE
$26.6B
| $4.07M | ﹤0.01% |
+37,180
| New | +$4.07M |
|
128
ZIM Integrated Shipping Services
ZIM
$1.62B
| $4.03M | ﹤0.01% |
325,336
+223,481
| +219% | +$2.77M |
|
129
GitLab
GTLB
$7.63B
| $3.99M | ﹤0.01% |
78,078
+46,163
| +145% | +$2.36M |
|
130
iShares 3-7 Year Treasury Bond ETF
IEI
$16.8B
| $3.99M | ﹤0.01% |
+34,602
| New | +$3.99M |
|
131
Direxion Daily Financial Bull 3x Shares
FAS
$2.59B
| $3.98M | ﹤0.01% |
62,644
-10,400
| -14% | -$661K |
|
132
GameStop
GME
$10.1B
| $3.96M | ﹤0.01% |
163,394
+148,339
| +985% | +$3.6M |
|
133
BHP
BHP
$138B
| $3.94M | ﹤0.01% |
+65,968
| New | +$3.94M |
|
134
DocuSign
DOCU
$16.1B
| $3.9M | ﹤0.01% |
76,387
+76,210
| +43,056% | +$3.89M |
|
135
Sleep Number
SNBR
$220M
| $3.82M | ﹤0.01% |
+139,903
| New | +$3.82M |
|
136
MetLife
MET
$52.9B
| $3.81M | ﹤0.01% |
67,458
+33,070
| +96% | +$1.87M |
|
137
Invesco CurrencyShares Japanese Yen Trust
FXY
$562M
| $3.81M | ﹤0.01% |
59,058
-20,636
| -26% | -$1.33M |
|
138
iShares S&P 500 Value ETF
IVE
$41B
| $3.8M | ﹤0.01% |
23,595
+12,676
| +116% | +$2.04M |
|
139
Franco-Nevada
FNV
$37.3B
| $3.76M | ﹤0.01% |
26,335
+20,147
| +326% | +$2.87M |
|
140
iShares Russell 1000 Value ETF
IWD
$63.5B
| $3.74M | ﹤0.01% |
+23,681
| New | +$3.74M |
|
141
SBA Communications
SBAC
$21.2B
| $3.7M | ﹤0.01% |
+15,957
| New | +$3.7M |
|
142
Capri Holdings
CPRI
$2.53B
| $3.64M | ﹤0.01% |
+101,341
| New | +$3.64M |
|
143
Direxion Daily S&P 500 Bull 3x Shares
SPXL
$5.49B
| $3.6M | ﹤0.01% |
+40,044
| New | +$3.6M |
|
144
Range Resources
RRC
$8.27B
| $3.5M | ﹤0.01% |
119,093
+61,687
| +107% | +$1.81M |
|
|
FLG
145
Flagstar Financial, Inc.
FLG
$5.39B
| $3.48M | ﹤0.01% |
103,322
+40,983
| +66% | +$1.38M |
|
146
ServiceNow
NOW
$190B
| $3.48M | ﹤0.01% |
6,193
-1,888
| -23% | -$1.06M |
|
147
Energy Transfer Partners
ET
$59.7B
| $3.43M | ﹤0.01% |
270,447
-46,449
| -15% | -$590K |
|
148
Avis
CAR
$5.5B
| $3.42M | ﹤0.01% |
14,942
+12,960
| +654% | +$2.96M |
|
149
Manchester United
MANU
$2.71B
| $3.31M | ﹤0.01% |
135,754
-48,154
| -26% | -$1.17M |
|
150
Hershey
HSY
$37.6B
| $3.26M | ﹤0.01% |
13,070
+11,151
| +581% | +$2.78M |
|