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 | |
|---|---|---|---|---|---|---|
151
United States Natural Gas Fund
UNG
$615M
| $3.25M | ﹤0.01% |
109,418
-70,255
| -39% | -$2.08M |
|
152
W.P. Carey
WPC
$14.9B
| $3.22M | ﹤0.01% |
+48,716
| New | +$3.22M |
|
153
GXO Logistics
GXO
$6.02B
| $3.21M | ﹤0.01% |
51,149
+40,844
| +396% | +$2.57M |
|
|
ETRN
154
DELISTED
Equitrans Midstream Corporation Common Stock
ETRN
| $3.21M | ﹤0.01% |
335,974
+255,349
| +317% | +$2.44M |
|
155
Direxion Daily 20+ Year Treasury Bull 3X Shares
TMF
$5.29B
| $3.18M | ﹤0.01% |
40,820
-92
| -0.2% | -$7.17K |
|
156
W.W. Grainger
GWW
$47.5B
| $3.18M | ﹤0.01% |
4,035
+3,082
| +323% | +$2.43M |
|
157
Deere & Co
DE
$128B
| $3.16M | ﹤0.01% |
7,810
-41,599
| -84% | -$16.9M |
|
158
Baxter International
BAX
$12.5B
| $3.16M | ﹤0.01% |
69,348
-44,494
| -39% | -$2.03M |
|
159
Etsy
ETSY
$5.36B
| $3.12M | ﹤0.01% |
+36,931
| New | +$3.12M |
|
160
General Mills
GIS
$27B
| $3.12M | ﹤0.01% |
40,633
-135,783
| -77% | -$10.4M |
|
161
Northrop Grumman
NOC
$83.2B
| $3.08M | ﹤0.01% |
+6,763
| New | +$3.08M |
|
162
Cenovus Energy
CVE
$28.7B
| $3.06M | ﹤0.01% |
180,469
+106,156
| +143% | +$1.8M |
|
163
Arista Networks
ANET
$180B
| $2.97M | ﹤0.01% |
73,384
+51,996
| +243% | +$2.11M |
|
164
Cheniere Energy
LNG
$51.8B
| $2.97M | ﹤0.01% |
+19,507
| New | +$2.97M |
|
165
ProShares Ultra S&P500
SSO
$7.2B
| $2.95M | ﹤0.01% |
50,816
+35,625
| +235% | +$2.07M |
|
166
Vanguard Value ETF
VTV
$143B
| $2.95M | ﹤0.01% |
20,728
+12,336
| +147% | +$1.75M |
|
167
Intuit
INTU
$188B
| $2.93M | ﹤0.01% |
6,396
-52,449
| -89% | -$24M |
|
168
Li Auto
LI
$24B
| $2.91M | ﹤0.01% |
+82,963
| New | +$2.91M |
|
169
Campbell Soup
CPB
$10.1B
| $2.9M | ﹤0.01% |
63,336
+23,482
| +59% | +$1.07M |
|
170
Aramark
ARMK
$10.2B
| $2.87M | ﹤0.01% |
92,366
+28,419
| +44% | +$883K |
|
|
BECN
171
DELISTED
Beacon Roofing Supply, Inc.
BECN
| $2.84M | ﹤0.01% |
+34,209
| New | +$2.84M |
|
172
Logitech
LOGI
$15.8B
| $2.79M | ﹤0.01% |
+47,036
| New | +$2.79M |
|
173
AppFolio
APPF
$10.2B
| $2.79M | ﹤0.01% |
16,211
+6,749
| +71% | +$1.16M |
|
174
Truist Financial
TFC
$60B
| $2.72M | ﹤0.01% |
+89,598
| New | +$2.72M |
|
175
Bank of New York Mellon
BK
$73.1B
| $2.69M | ﹤0.01% |
60,324
+59,258
| +5,559% | +$2.64M |
|