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
|
$102M |
| 2 |
TSMC
TSM
|
$29.6M |
| 3 |
JPMorgan Chase
JPM
|
$21.9M |
| 4 |
Boeing
BA
|
$18.8M |
| 5 |
Target
TGT
|
$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
$94.2M |
| 2 |
Tesla
TSLA
|
$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
$81.5M |
| 4 |
NVIDIA
NVDA
|
$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
51
Royal Caribbean
RCL
$96.4B
| $7.23M | 0.01% |
111,739
-75,558
| -40% | -$4.89M |
|
52
CVS Health
CVS
$93B
| $7.03M | 0.01% |
120,335
-58,492
| -33% | -$3.42M |
|
53
IBM
IBM
$227B
| $6.97M | 0.01% |
57,273
+57,211
| +92,276% | +$6.96M |
|
54
Mercado Libre
MELI
$120B
| $6.65M | 0.01% |
6,142
+2,265
| +58% | +$2.45M |
|
55
General Motors
GM
$55B
| $6.35M | 0.01% |
214,700
-84,881
| -28% | -$2.51M |
|
56
iShares US Home Construction ETF
ITB
$3.18B
| $6.07M | 0.01% |
+107,145
| New | +$6.07M |
|
57
Darden Restaurants
DRI
$24.3B
| $6.02M | 0.01% |
59,748
+16,535
| +38% | +$1.67M |
|
58
ProShares UltraPro Short QQQ
SQQQ
$2.39B
| $5.94M | 0.01% |
+249,051
| New | +$5.94M |
|
59
Wells Fargo
WFC
$258B
| $5.93M | 0.01% |
252,026
+40,657
| +19% | +$956K |
|
60
Merck
MRK
$210B
| $5.88M | 0.01% |
70,944
+9,891
| +16% | +$820K |
|
61
Autodesk
ADSK
$67.9B
| $5.82M | 0.01% |
25,174
+1,814
| +8% | +$419K |
|
62
Southwest Airlines
LUV
$17B
| $5.8M | 0.01% |
154,731
+142,551
| +1,170% | +$5.35M |
|
63
Carvana
CVNA
$50B
| $5.52M | 0.01% |
24,752
+24,652
| +24,652% | +$5.5M |
|
64
Bank of America
BAC
$371B
| $5.5M | 0.01% |
228,280
-608,290
| -73% | -$14.7M |
|
65
Norwegian Cruise Line
NCLH
$11.5B
| $5.39M | 0.01% |
315,272
-90,893
| -22% | -$1.56M |
|
66
Technology Select Sector SPDR Fund
XLK
$83.6B
| $5.21M | 0.01% |
44,668
-147,382
| -77% | -$17.2M |
|
67
Electronic Arts
EA
$42B
| $5.18M | 0.01% |
39,715
+25,026
| +170% | +$3.26M |
|
68
SPDR S&P 500 ETF Trust
SPY
$656B
| $5.13M | 0.01% |
15,323
-1,700
| -10% | -$569K |
|
69
American International
AIG
$45.1B
| $5.11M | 0.01% |
+185,547
| New | +$5.11M |
|
70
Altria Group
MO
$112B
| $5.08M | 0.01% |
131,550
+61,756
| +88% | +$2.39M |
|
71
Palo Alto Networks
PANW
$128B
| $4.95M | 0.01% |
20,218
-2,882
| -12% | -$705K |
|
|
WBA
72
DELISTED
Walgreens Boots Alliance
WBA
| $4.81M | 0.01% |
134,030
+133,730
| +44,577% | +$4.8M |
|
73
Western Digital
WDC
$29.8B
| $4.7M | 0.01% |
128,567
+103,805
| +419% | +$3.79M |
|
74
lululemon athletica
LULU
$23.8B
| $4.68M | 0.01% |
14,212
+12,067
| +563% | +$3.97M |
|
75
AstraZeneca
AZN
$255B
| $4.64M | 0.01% |
84,624
+23,857
| +39% | +$1.31M |
|