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 | |
|---|---|---|---|---|---|---|
|
1
iShares 20+ Year Treasury Bond ETF
TLT
$47.8B
| $101M | 0.08% | 980,958 +509,680 | +108% | +$52.5M |
|
|
2
NVIDIA
NVDA
$4.24T
| $60M | 0.05% | +141,933 | New | +$60M |
|
|
3
Microsoft
MSFT
$3.77T
| $58.6M | 0.05% | +171,935 | New | +$58.6M |
|
|
4
PayPal
PYPL
$67.1B
| $43.3M | 0.04% | 649,226 +612,382 | +1,662% | +$40.9M |
|
5
Oracle
ORCL
$635B
| $35.2M | 0.03% | 295,783 +89,957 | +44% | +$10.7M |
|
6
Verizon
VZ
$186B
| $31.8M | 0.03% | 854,067 +252,053 | +42% | +$9.37M |
|
7
Utilities Select Sector SPDR Fund
XLU
$20.9B
| $30.7M | 0.03% | 468,415 -40,920 | -8% | -$2.68M |
|
|
8
Netflix
NFLX
$513B
| $29.8M | 0.02% | 67,749 +67,329 | +16,031% | +$29.7M |
|
9
Alphabet (Google) Class C
GOOG
$2.58T
| $29.6M | 0.02% | +245,078 | New | +$29.6M |
|
10
Advanced Micro Devices
AMD
$264B
| $27.2M | 0.02% | 238,915 +134,922 | +130% | +$15.4M |
|
11
Procter & Gamble
PG
$368B
| $25.7M | 0.02% | +169,060 | New | +$25.7M |
|
12
iShares China Large-Cap ETF
FXI
$6.65B
| $25.6M | 0.02% | 941,085 +621,783 | +195% | +$16.9M |
|
13
Qualcomm
QCOM
$173B
| $25.2M | 0.02% | +212,035 | New | +$25.2M |
|
14
Bank of America
BAC
$376B
| $25.2M | 0.02% | +878,773 | New | +$25.2M |
|
15
Newmont
NEM
$81.7B
| $23.6M | 0.02% | 552,906 +302,913 | +121% | +$12.9M |
|
16
Consumers Staples Select Sector SPDR Fund
XLP
$15.8B
| $23.1M | 0.02% | +311,206 | New | +$23.1M |
|
17
Walt Disney
DIS
$213B
| $22.2M | 0.02% | 248,676 +91,342 | +58% | +$8.15M |
|
18
Alibaba
BABA
$322B
| $22.2M | 0.02% | 265,799 -2,920 | -1% | -$243K |
|
19
JD.com
JD
$44.1B
| $22.1M | 0.02% | 646,303 +51,678 | +9% | +$1.76M |
|
20
Boeing
BA
$177B
| $21.5M | 0.02% | 101,922 +98,722 | +3,085% | +$20.8M |
|
21
ProShares UltraPro QQQ
TQQQ
$26B
| $19.7M | 0.02% | +481,090 | New | +$19.7M |
|
22
Pfizer
PFE
$141B
| $19.3M | 0.02% | 525,221 +467,052 | +803% | +$17.1M |
|
23
Ford
F
$46.8B
| $18.8M | 0.02% | 1,245,546 +674,907 | +118% | +$10.2M |
|
24
Intel
INTC
$107B
| $18.5M | 0.02% | 552,185 +12,315 | +2% | +$412K |
|
25
AT&T
T
$209B
| $17.6M | 0.01% | 1,104,744 +327,423 | +42% | +$5.22M |
|