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 | |
|---|---|---|---|---|---|---|
51
Delta Air Lines
DAL
$40B
| $10M | 0.01% |
357,476
+166,000
| +87% | +$4.66M |
|
52
British American Tobacco
BTI
$120B
| $9.93M | 0.01% |
279,633
+86,824
| +45% | +$3.08M |
|
53
Micron Technology
MU
$133B
| $9.07M | 0.01% |
+181,130
| New | +$9.07M |
|
54
Intuit
INTU
$187B
| $9.02M | 0.01% |
23,295
+18,859
| +425% | +$7.3M |
|
55
Dow Inc
DOW
$17B
| $8.52M | 0.01% |
194,035
+169,583
| +694% | +$7.45M |
|
56
Teva Pharmaceuticals
TEVA
$21.5B
| $8.42M | 0.01% |
1,043,332
-362,225
| -26% | -$2.92M |
|
57
Costco
COST
$421B
| $7.97M | 0.01% |
+16,879
| New | +$7.97M |
|
58
Intuitive Surgical
ISRG
$158B
| $7.92M | 0.01% |
+42,253
| New | +$7.92M |
|
59
Suncor Energy
SU
$49.3B
| $7.84M | 0.01% |
278,508
+170,574
| +158% | +$4.8M |
|
60
Tyson Foods
TSN
$20B
| $7.79M | 0.01% |
+118,168
| New | +$7.79M |
|
61
Verizon
VZ
$184B
| $7.76M | 0.01% |
204,384
-115,568
| -36% | -$4.39M |
|
62
ASML
ASML
$290B
| $7.63M | 0.01% |
+18,373
| New | +$7.63M |
|
63
Canadian Solar
CSIQ
$663M
| $7.62M | 0.01% |
204,623
+77,788
| +61% | +$2.9M |
|
64
Direxion Daily S&P Biotech Bull 3X Shares
LABU
$727M
| $7.61M | 0.01% |
1,085,712
-124,836
| -10% | -$875K |
|
65
Invesco CurrencyShares Euro Currency Trust
FXE
$527M
| $7.6M | 0.01% |
84,010
+68,903
| +456% | +$6.23M |
|
66
VanEck Junior Gold Miners ETF
GDXJ
$6.91B
| $7.43M | 0.01% |
+252,237
| New | +$7.43M |
|
67
CF Industries
CF
$13.7B
| $7.18M | 0.01% |
74,561
+141
| +0.2% | +$13.6K |
|
68
S&P Global
SPGI
$165B
| $7.18M | 0.01% |
+23,501
| New | +$7.18M |
|
69
NIO
NIO
$14.2B
| $7.11M | 0.01% |
450,962
-268,407
| -37% | -$4.23M |
|
70
RH
RH
$4.14B
| $7.03M | 0.01% |
28,564
-1,556
| -5% | -$383K |
|
71
Halliburton
HAL
$18.4B
| $6.81M | 0.01% |
276,527
+67,363
| +32% | +$1.66M |
|
72
Northrop Grumman
NOC
$83.2B
| $6.78M | 0.01% |
14,411
+3,669
| +34% | +$1.73M |
|
73
Norwegian Cruise Line
NCLH
$11.5B
| $6.7M | 0.01% |
589,474
+43,065
| +8% | +$489K |
|
74
Prudential Financial
PRU
$37.8B
| $6.69M | 0.01% |
77,990
+46,854
| +150% | +$4.02M |
|
75
Dutch Bros
BROS
$9.1B
| $6.65M | 0.01% |
213,575
+213,292
| +75,368% | +$6.64M |
|