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 |
Alibaba
BABA
|
$48.9M |
| 2 |
Boeing
BA
|
$25.8M |
| 3 |
SPDR Gold Trust
GLD
|
$18.2M |
| 4 |
Biogen
BIIB
|
$15.8M |
| 5 |
FedEx
FDX
|
$13.6M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
$62.1M |
| 2 |
iShares Russell 2000 ETF
IWM
|
$36.4M |
| 3 |
Industrial Select Sector SPDR Fund
XLI
|
$17.5M |
| 4 |
Netflix
NFLX
|
$16.3M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$14.6M |
Sector Composition
| 1 | Consumer Discretionary | 16.74% |
| 2 | Technology | 16.32% |
| 3 | Healthcare | 12.17% |
| 4 | Industrials | 12.14% |
| 5 | Communication Services | 7.05% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
76
Vanguard FTSE Emerging Markets ETF
VWO
$96.5B
| $2.39M | 0.01% |
59,339
+35,486
| +149% | +$1.43M |
|
77
SAP
SAP
$316B
| $2.38M | 0.01% |
20,207
-10,492
| -34% | -$1.24M |
|
78
VanEck JP Morgan EM Local Currency Bond ETF
EMLC
$3.67B
| $2.38M | 0.01% |
72,055
+38,962
| +118% | +$1.29M |
|
79
Spotify
SPOT
$143B
| $2.38M | 0.01% |
20,834
-50,430
| -71% | -$5.75M |
|
80
Universal Health Services
UHS
$11.6B
| $2.36M | 0.01% |
+15,855
| New | +$2.36M |
|
|
ATVI
81
DELISTED
Activision Blizzard Inc.
ATVI
| $2.35M | 0.01% |
+44,346
| New | +$2.35M |
|
82
Schlumberger
SLB
$52.2B
| $2.35M | 0.01% |
68,630
+24,075
| +54% | +$823K |
|
|
NLSN
83
DELISTED
Nielsen Holdings plc
NLSN
| $2.31M | 0.01% |
108,735
+52,127
| +92% | +$1.11M |
|
84
Charter Communications
CHTR
$35.7B
| $2.29M | 0.01% |
5,559
+3,040
| +121% | +$1.25M |
|
85
AB InBev
BUD
$116B
| $2.26M | 0.01% |
23,767
+12,025
| +102% | +$1.14M |
|
86
MarketAxess Holdings
MKTX
$6.78B
| $2.23M | 0.01% |
6,811
+4,160
| +157% | +$1.36M |
|
87
Invesco CurrencyShares British Pound Sterling Trust
FXB
$90.4M
| $2.18M | 0.01% |
18,309
+6,680
| +57% | +$796K |
|
88
Johnson & Johnson
JNJ
$429B
| $2.18M | 0.01% |
+16,839
| New | +$2.18M |
|
89
Home Depot
HD
$406B
| $2.17M | 0.01% |
9,372
+4,472
| +91% | +$1.04M |
|
90
Constellation Brands
STZ
$25.8B
| $2.13M | 0.01% |
10,293
-37,701
| -79% | -$7.81M |
|
91
Direxion Daily Junior Gold Miners Index Bull 2X Shares
JNUG
$468M
| $2.09M | 0.01% |
36,611
+23,186
| +173% | +$1.32M |
|
92
SPDR Bloomberg High Yield Bond ETF
JNK
$8.07B
| $2.07M | 0.01% |
19,080
+6,224
| +48% | +$677K |
|
93
ProShares Ultra S&P500
SSO
$7.13B
| $2.06M | 0.01% |
16,073
+15,876
| +8,059% | +$2.04M |
|
|
BBL
94
DELISTED
BHP Group Plc American Depositary Shares (Each representing two Ordinary Shares)
BBL
| $2.03M | 0.01% |
+47,293
| New | +$2.03M |
|
95
Fair Isaac
FICO
$36.5B
| $2.02M | 0.01% |
6,640
-3,850
| -37% | -$1.17M |
|
96
Tyson Foods
TSN
$20B
| $1.98M | 0.01% |
23,042
+1,753
| +8% | +$151K |
|
97
Hasbro
HAS
$11.1B
| $1.98M | 0.01% |
16,690
-6,846
| -29% | -$812K |
|
98
PPL Corp
PPL
$26.8B
| $1.98M | 0.01% |
+62,806
| New | +$1.98M |
|
99
Wendy's
WEN
$1.91B
| $1.95M | 0.01% |
97,622
+96,268
| +7,110% | +$1.92M |
|
100
Walt Disney
DIS
$211B
| $1.91M | 0.01% |
14,676
-21,021
| -59% | -$2.74M |
|