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 |
Apple
AAPL
|
$45.7M |
| 2 |
Walmart
WMT
|
$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$33.2M |
| 5 |
Citigroup
C
|
$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
$111M |
| 3 |
NVIDIA
NVDA
|
$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
$60.9M |
| 5 |
Procter & Gamble
PG
|
$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
76
Meta Platforms (Facebook)
META
$1.85T
| $7.1M | 0.01% |
33,500
-287,596
| -90% | -$60.9M |
|
77
Take-Two Interactive
TTWO
$44.1B
| $6.82M | 0.01% |
+57,207
| New | +$6.82M |
|
78
GSK
GSK
$79.3B
| $6.75M | 0.01% |
189,576
-95,562
| -34% | -$3.4M |
|
79
Vanguard Information Technology ETF
VGT
$99.1B
| $6.73M | 0.01% |
17,449
+14,854
| +572% | +$5.73M |
|
80
Nice
NICE
$8.48B
| $6.58M | 0.01% |
28,749
+20,975
| +270% | +$4.8M |
|
81
Align Technology
ALGN
$9.59B
| $6.56M | 0.01% |
19,632
-3,774
| -16% | -$1.26M |
|
82
Direxion Daily S&P 500 Bear 3x Shares
SPXS
$449M
| $6.47M | 0.01% |
+365,271
| New | +$6.47M |
|
83
Burlington
BURL
$18.5B
| $6.38M | 0.01% |
+31,565
| New | +$6.38M |
|
84
iShares Select Dividend ETF
DVY
$20.6B
| $6.37M | 0.01% |
54,350
+13,465
| +33% | +$1.58M |
|
85
NIO
NIO
$14.2B
| $6.36M | 0.01% |
604,982
+596,043
| +6,668% | +$6.26M |
|
86
Invesco NASDAQ 100 ETF
QQQM
$58.7B
| $6.27M | 0.01% |
+47,489
| New | +$6.27M |
|
87
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$304M
| $6.14M | 0.01% |
+219,663
| New | +$6.14M |
|
88
Shopify
SHOP
$182B
| $6.08M | 0.01% |
126,805
-95,495
| -43% | -$4.58M |
|
89
SPDR S&P Biotech ETF
XBI
$5.29B
| $6.07M | 0.01% |
79,619
+11,288
| +17% | +$860K |
|
90
Albemarle
ALB
$9.43B
| $6.04M | 0.01% |
+27,305
| New | +$6.04M |
|
91
Invesco CurrencyShares Japanese Yen Trust
FXY
$559M
| $5.59M | ﹤0.01% |
79,694
+14,821
| +23% | +$1.04M |
|
92
iShares Biotechnology ETF
IBB
$5.68B
| $5.45M | ﹤0.01% |
+42,162
| New | +$5.45M |
|
93
Vodafone
VOD
$28.2B
| $5.39M | ﹤0.01% |
488,210
+170,697
| +54% | +$1.88M |
|
94
Vistra
VST
$63.7B
| $5.32M | ﹤0.01% |
221,830
+180,014
| +430% | +$4.32M |
|
95
American Airlines Group
AAL
$8.87B
| $5.32M | ﹤0.01% |
+360,912
| New | +$5.32M |
|
96
Chewy
CHWY
$16.8B
| $5.29M | ﹤0.01% |
141,501
+139,144
| +5,903% | +$5.2M |
|
97
ASML
ASML
$290B
| $5.26M | ﹤0.01% |
+7,734
| New | +$5.26M |
|
98
Pan American Silver
PAAS
$12.3B
| $5.2M | ﹤0.01% |
285,842
+112,919
| +65% | +$2.05M |
|
99
Medtronic
MDT
$118B
| $5.14M | ﹤0.01% |
63,778
-109,727
| -63% | -$8.84M |
|
100
British American Tobacco
BTI
$120B
| $5.11M | ﹤0.01% |
145,498
+78,275
| +116% | +$2.75M |
|