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 |
Energy Select Sector SPDR Fund
XLE
|
$93.9M |
| 2 |
Pfizer
PFE
|
$89.5M |
| 3 |
Boeing
BA
|
$66.7M |
| 4 |
Intel
INTC
|
$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
$109M |
| 3 |
Alibaba
BABA
|
$81.8M |
| 4 |
Walt Disney
DIS
|
$80.2M |
| 5 |
Citigroup
C
|
$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
B
26
Barrick Mining Corporation
B
$46.2B
| $27.8M | 0.02% |
1,673,456
-166,008
| -9% | -$2.76M |
|
27
Nike
NKE
$110B
| $27.8M | 0.02% |
296,021
-24,057
| -8% | -$2.26M |
|
28
Bristol-Myers Squibb
BMY
$97.3B
| $27.3M | 0.02% |
+503,748
| New | +$27.3M |
|
29
Valero Energy
VLO
$48.2B
| $27.2M | 0.02% |
159,424
+90,278
| +131% | +$15.4M |
|
30
Novo Nordisk
NVO
$252B
| $24.4M | 0.01% |
189,656
+116,505
| +159% | +$15M |
|
31
Booking.com
BKNG
$179B
| $23.7M | 0.01% |
6,532
+5,994
| +1,114% | +$21.7M |
|
|
32
NVIDIA
NVDA
$4.18T
| $22.4M | 0.01% |
24,805
-161,319
| -87% | -$146M |
|
33
3M
MMM
$81.5B
| $20.2M | 0.01% |
190,524
+169,172
| +792% | +$17.9M |
|
34
Albemarle
ALB
$9.43B
| $19.8M | 0.01% |
150,150
+92,218
| +159% | +$12.1M |
|
35
SPDR S&P 500 ETF Trust
SPY
$656B
| $19.3M | 0.01% |
+36,861
| New | +$19.3M |
|
|
36
Walt Disney
DIS
$210B
| $19.2M | 0.01% |
157,252
-655,732
| -81% | -$80.2M |
|
37
Berkshire Hathaway Class B
BRK.B
$1.08T
| $18.3M | 0.01% |
43,561
+30,646
| +237% | +$12.9M |
|
38
VanEck Gold Miners ETF
GDX
$19.6B
| $18.2M | 0.01% |
576,254
-54,365
| -9% | -$1.72M |
|
39
SPDR S&P Biotech ETF
XBI
$5.31B
| $17.9M | 0.01% |
+188,115
| New | +$17.9M |
|
|
40
Alphabet (Google) Class A
GOOGL
$2.76T
| $17.2M | 0.01% |
114,255
-725,434
| -86% | -$109M |
|
41
Snowflake
SNOW
$76.7B
| $17.1M | 0.01% |
+105,930
| New | +$17.1M |
|
42
Carnival Corp
CCL
$42.9B
| $16.8M | 0.01% |
+1,025,542
| New | +$16.8M |
|
43
UnitedHealth
UNH
$276B
| $16.7M | 0.01% |
+33,725
| New | +$16.7M |
|
44
iShares 7-10 Year Treasury Bond ETF
IEF
$35.6B
| $15.8M | 0.01% |
167,310
+50,690
| +43% | +$4.8M |
|
45
First Solar
FSLR
$21.2B
| $15.4M | 0.01% |
91,201
-49,630
| -35% | -$8.38M |
|
46
SoFi Technologies
SOFI
$29.6B
| $15.4M | 0.01% |
+2,106,379
| New | +$15.4M |
|
47
American Tower
AMT
$94B
| $15.3M | 0.01% |
77,628
+22,091
| +40% | +$4.36M |
|
48
Deckers Outdoor
DECK
$18.4B
| $15.2M | 0.01% |
+16,182
| New | +$15.2M |
|
49
Dell
DELL
$82.9B
| $14.7M | 0.01% |
+129,137
| New | +$14.7M |
|
50
Direxion Daily Financial Bull 3x Shares
FAS
$2.65B
| $14.5M | 0.01% |
128,864
+98,356
| +322% | +$11M |
|