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 |
Alibaba
BABA
|
$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
$97.6M |
| 3 |
Walt Disney
DIS
|
$73.4M |
| 4 |
Citigroup
C
|
$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$149M |
| 2 |
Amazon
AMZN
|
$107M |
| 3 |
SPDR Gold Trust
GLD
|
$58.6M |
| 4 |
Coinbase
COIN
|
$56.5M |
| 5 |
NVIDIA
NVDA
|
$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
76
Texas Instruments
TXN
$178B
| $8.78M | 0.01% |
+51,516
| New | +$8.78M |
|
77
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$304M
| $8.75M | 0.01% |
289,861
-4,184
| -1% | -$126K |
|
78
Air Products & Chemicals
APD
$64.8B
| $8.69M | 0.01% |
+31,745
| New | +$8.69M |
|
79
Kenvue
KVUE
$39.2B
| $8.42M | 0.01% |
391,260
-128,334
| -25% | -$2.76M |
|
80
Twilio
TWLO
$16.1B
| $8.42M | 0.01% |
110,977
-12,028
| -10% | -$912K |
|
81
United Parcel Service
UPS
$72.3B
| $8.38M | 0.01% |
+53,299
| New | +$8.38M |
|
82
Albemarle
ALB
$9.43B
| $8.37M | 0.01% |
57,932
+12,692
| +28% | +$1.83M |
|
83
Vanguard Small-Cap Growth ETF
VBK
$20B
| $8.19M | 0.01% |
33,881
+33,844
| +91,470% | +$8.18M |
|
84
BP
BP
$88.8B
| $8.01M | 0.01% |
226,137
+10,430
| +5% | +$369K |
|
85
BHP
BHP
$142B
| $7.68M | ﹤0.01% |
112,500
+52,279
| +87% | +$3.57M |
|
86
Novo Nordisk
NVO
$252B
| $7.57M | ﹤0.01% |
73,151
+8,246
| +13% | +$853K |
|
87
Truist Financial
TFC
$59.8B
| $7.43M | ﹤0.01% |
201,271
+1,390
| +0.7% | +$51.3K |
|
88
Snap
SNAP
$12.3B
| $7.24M | ﹤0.01% |
427,917
-168,886
| -28% | -$2.86M |
|
89
Halliburton
HAL
$18.4B
| $7.22M | ﹤0.01% |
199,746
-40,056
| -17% | -$1.45M |
|
90
United States Oil Fund
USO
$967M
| $7.17M | ﹤0.01% |
107,529
+92,446
| +613% | +$6.16M |
|
91
CME Group
CME
$97.1B
| $7.12M | ﹤0.01% |
33,797
+25,584
| +312% | +$5.39M |
|
92
Progressive
PGR
$145B
| $7.11M | ﹤0.01% |
44,641
+5,260
| +13% | +$838K |
|
93
BILL Holdings
BILL
$4.69B
| $7.09M | ﹤0.01% |
+86,916
| New | +$7.09M |
|
94
Teva Pharmaceuticals
TEVA
$21.5B
| $6.76M | ﹤0.01% |
647,080
+13,103
| +2% | +$137K |
|
95
Nice
NICE
$8.48B
| $6.54M | ﹤0.01% |
32,798
+10,030
| +44% | +$2M |
|
96
Li Auto
LI
$24.4B
| $6.48M | ﹤0.01% |
+172,996
| New | +$6.48M |
|
97
Verizon
VZ
$184B
| $6.35M | ﹤0.01% |
168,326
-934,889
| -85% | -$35.2M |
|
98
DaVita
DVA
$9.72B
| $6.31M | ﹤0.01% |
+60,186
| New | +$6.31M |
|
|
IMGN
99
DELISTED
Immunogen Inc
IMGN
| $6.27M | ﹤0.01% |
211,467
+967
| +0.5% | +$28.7K |
|
100
NIO
NIO
$14.2B
| $6.25M | ﹤0.01% |
688,992
-1,267,790
| -65% | -$11.5M |
|