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 |
Invesco QQQ Trust
QQQ
|
$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
$75.9M |
| 3 |
NVIDIA
NVDA
|
$42.6M |
| 4 |
Netflix
NFLX
|
$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$24.3M |
| 5 |
Broadcom
AVGO
|
$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
51
Coca-Cola
KO
$297B
| $8.31M | 0.01% |
186,029
+185,729
| +61,910% | +$8.3M |
|
52
PepsiCo
PEP
$203B
| $8.31M | 0.01% |
+62,817
| New | +$8.31M |
|
53
Eli Lilly
LLY
$661B
| $7.77M | 0.01% |
+47,338
| New | +$7.77M |
|
54
VanEck Junior Gold Miners ETF
GDXJ
$6.91B
| $7.66M | 0.01% |
+154,483
| New | +$7.66M |
|
55
General Motors
GM
$55B
| $7.58M | 0.01% |
299,581
-57,746
| -16% | -$1.46M |
|
56
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$694M
| $7.48M | 0.01% |
228,177
-43,976
| -16% | -$1.44M |
|
57
CoStar Group
CSGP
$37.2B
| $7.47M | 0.01% |
10,510
+3,546
| +51% | +$2.52M |
|
58
Clorox
CLX
$15B
| $7.46M | 0.01% |
34,016
-1,861
| -5% | -$408K |
|
59
Moderna
MRNA
$9.36B
| $7.28M | 0.01% |
113,405
-5,413
| -5% | -$348K |
|
60
ProShares UltraPro S&P 500
UPRO
$4.43B
| $7.11M | 0.01% |
160,308
+99,882
| +165% | +$4.43M |
|
61
Newmont
NEM
$82.8B
| $6.94M | 0.01% |
112,434
+59,848
| +114% | +$3.69M |
|
62
Norwegian Cruise Line
NCLH
$11.5B
| $6.67M | 0.01% |
406,165
+367,533
| +951% | +$6.04M |
|
63
SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$1.86B
| $6.62M | 0.01% |
126,778
+59,447
| +88% | +$3.1M |
|
64
BP
BP
$88.8B
| $6.61M | 0.01% |
283,649
+181,867
| +179% | +$4.24M |
|
65
Exxon Mobil
XOM
$477B
| $6.52M | 0.01% |
145,870
+111,121
| +320% | +$4.97M |
|
|
66
Broadcom
AVGO
$1.42T
| $6.26M | 0.01% |
19,842
-67,539
| -77% | -$21.3M |
|
67
TSMC
TSM
$1.2T
| $6.22M | 0.01% |
109,532
-117,483
| -52% | -$6.67M |
|
68
JD.com
JD
$44.2B
| $5.77M | 0.01% |
95,957
-65,030
| -40% | -$3.91M |
|
69
Trade Desk
TTD
$26.3B
| $5.71M | 0.01% |
+14,044
| New | +$5.71M |
|
70
iShares MSCI Brazil ETF
EWZ
$5.35B
| $5.69M | 0.01% |
197,765
+113,450
| +135% | +$3.26M |
|
71
Autodesk
ADSK
$67.9B
| $5.59M | 0.01% |
23,360
+17,082
| +272% | +$4.09M |
|
|
ALXN
72
DELISTED
Alexion Pharmaceuticals Inc
ALXN
| $5.55M | 0.01% |
49,449
-21,356
| -30% | -$2.4M |
|
73
Trip.com Group
TCOM
$46.6B
| $5.41M | 0.01% |
208,834
+154,207
| +282% | +$4M |
|
74
Wells Fargo
WFC
$258B
| $5.41M | 0.01% |
211,369
+203,337
| +2,532% | +$5.21M |
|
75
Direxion Daily Gold Miners Index Bull 2X Shares
NUGT
$820M
| $5.4M | 0.01% |
69,129
-733,105
| -91% | -$7.14M |
|