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 |
Amazon
AMZN
|
$44.9M |
| 2 |
iShares Russell 2000 ETF
IWM
|
$31.7M |
| 3 |
TWX
Time Warner Inc
TWX
|
$26.1M |
| 4 |
Booking.com
BKNG
|
$21.7M |
| 5 |
Alphabet (Google) Class C
GOOG
|
$18.2M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$42.8M |
| 2 |
Amgen
AMGN
|
$32.3M |
| 3 |
Baidu
BIDU
|
$21.9M |
| 4 |
Micron Technology
MU
|
$21.2M |
| 5 |
Alphabet (Google) Class A
GOOGL
|
$17.7M |
Sector Composition
| 1 | Consumer Discretionary | 21.41% |
| 2 | Technology | 19.71% |
| 3 | Communication Services | 17.68% |
| 4 | Healthcare | 6.08% |
| 5 | Financials | 5.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
51
Schlumberger
SLB
$55B
| $5.06M | 0.21% | 72,543 -151,152 | -68% | -$10.5M |
|
52
Caterpillar
CAT
$196B
| $4.97M | 0.2% | +39,850 | New | +$4.97M |
|
53
iShares MSCI Brazil ETF
EWZ
$5.45B
| $4.92M | 0.2% | +117,933 | New | +$4.92M |
|
54
Goldman Sachs
GS
$226B
| $4.89M | 0.2% | 20,615 -21,816 | -51% | -$5.17M |
|
55
GE Aerospace
GE
$292B
| $4.62M | 0.19% | 190,902 -16,776 | -8% | -$406K |
|
56
Health Care Select Sector SPDR Fund
XLV
$33.9B
| $4.6M | 0.19% | +56,313 | New | +$4.6M |
|
|
MOMO
57
Hello Group
MOMO
$1.33B
| $4.6M | 0.19% | 146,695 +110,994 | +311% | +$3.48M |
|
58
Bunge Global
BG
$16.8B
| $4.58M | 0.19% | 65,905 +30,226 | +85% | +$2.1M |
|
|
DISH
59
DELISTED
DISH Network Corp.
DISH
| $4.57M | 0.19% | 84,228 +21,698 | +35% | +$1.18M |
|
60
ProShares UltraPro S&P 500
UPRO
$4.46B
| $4.45M | 0.18% | 38,230 +14,035 | +58% | +$1.63M |
|
61
Bausch Health
BHC
$2.74B
| $4.42M | 0.18% | 308,500 +201,796 | +189% | +$2.89M |
|
62
Autodesk
ADSK
$67.3B
| $4.41M | 0.18% | 39,259 +12,228 | +45% | +$1.37M |
|
|
RTN
63
DELISTED
Raytheon Company
RTN
| $4.3M | 0.18% | +23,038 | New | +$4.3M |
|
64
ProShares UltraPro QQQ
TQQQ
$26B
| $4.28M | 0.17% | +37,501 | New | +$4.28M |
|
65
Comcast
CMCSA
$125B
| $4.27M | 0.17% | 110,882 +110,782 | +110,782% | +$4.26M |
|
66
Vale
VALE
$43.9B
| $4.25M | 0.17% | 422,361 +220,609 | +109% | +$2.22M |
|
67
Teva Pharmaceuticals
TEVA
$21.1B
| $4.23M | 0.17% | 240,285 +198,965 | +482% | +$3.5M |
|
68
Honeywell
HON
$139B
| $4.11M | 0.17% | +28,966 | New | +$4.11M |
|
|
69
Baidu
BIDU
$32.8B
| $4.06M | 0.17% | 16,391 -88,635 | -84% | -$21.9M |
|
|
XYZ
70
Block, Inc.
XYZ
$48.5B
| $4M | 0.16% | 138,698 +29,313 | +27% | +$844K |
|
|
APC
71
DELISTED
Anadarko Petroleum
APC
| $3.99M | 0.16% | 81,642 +8,073 | +11% | +$394K |
|
72
iShares Biotechnology ETF
IBB
$5.6B
| $3.86M | 0.16% | 11,560 +6,832 | +145% | +$2.28M |
|
73
Humana
HUM
$36.5B
| $3.84M | 0.16% | 15,777 +3,927 | +33% | +$957K |
|
74
Direxion Daily Small Cap Bull 3x Shares
TNA
$2.18B
| $3.75M | 0.15% | 57,777 -87,108 | -60% | -$5.65M |
|
75
General Motors
GM
$55.8B
| $3.67M | 0.15% | 90,832 -126,525 | -58% | -$5.11M |
|