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
|
$32.1M |
| 2 |
Bausch Health
BHC
|
$18.4M |
| 3 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
$17.9M |
| 4 |
Chipotle Mexican Grill
CMG
|
$14.9M |
| 5 |
Amazon
AMZN
|
$13M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$13.7M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$12.1M |
| 4 |
Netflix
NFLX
|
$10.7M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
$10.7M |
Sector Composition
| 1 | Consumer Discretionary | 17.29% |
| 2 | Healthcare | 13.74% |
| 3 | Technology | 12.76% |
| 4 | Communication Services | 12.12% |
| 5 | Industrials | 10.49% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
ESRX
76
DELISTED
Express Scripts Holding Company
ESRX
| $1.65M | 0.13% |
18,823
+17,192
| +1,054% | +$1.5M |
|
77
Tesla
TSLA
$1.08T
| $1.63M | 0.13% |
+6,802
| New | +$1.63M |
|
78
Cummins
CMI
$54B
| $1.57M | 0.12% |
17,854
+15,166
| +564% | +$1.33M |
|
79
IBM
IBM
$227B
| $1.54M | 0.12% |
+11,179
| New | +$1.54M |
|
80
Morgan Stanley
MS
$237B
| $1.52M | 0.12% |
+47,788
| New | +$1.52M |
|
|
EZCH
81
DELISTED
EZCHIP SEMICONDUCTOR LIMITED ORD SHS (IL)
EZCH
| $1.5M | 0.12% |
+60,682
| New | +$1.5M |
|
82
ProShares UltraPro QQQ
TQQQ
$26B
| $1.49M | 0.12% |
13,025
+1,474
| +13% | +$168K |
|
83
Ulta Beauty
ULTA
$23.8B
| $1.48M | 0.12% |
8,015
+1,863
| +30% | +$344K |
|
84
Herbalife
HLF
$1.02B
| $1.47M | 0.12% |
27,492
+23,643
| +614% | +$1.27M |
|
|
85
Netflix
NFLX
$521B
| $1.47M | 0.12% |
12,867
-93,694
| -88% | -$10.7M |
|
|
P
86
DELISTED
Pandora Media Inc
P
| $1.46M | 0.11% |
109,195
+78,789
| +259% | +$1.06M |
|
87
Energy Transfer Partners
ET
$60.3B
| $1.46M | 0.11% |
+106,430
| New | +$1.46M |
|
88
Halliburton
HAL
$18.4B
| $1.44M | 0.11% |
42,210
+6,428
| +18% | +$219K |
|
89
Blackstone
BX
$131B
| $1.39M | 0.11% |
47,395
-10,193
| -18% | -$330K |
|
90
Yelp
YELP
$1.99B
| $1.38M | 0.11% |
48,080
+17,404
| +57% | +$501K |
|
91
Devon Energy
DVN
$22.3B
| $1.37M | 0.11% |
42,940
+34,378
| +402% | +$1.1M |
|
92
Brookdale Senior Living
BKD
$1.81B
| $1.35M | 0.11% |
+73,022
| New | +$1.35M |
|
93
United States Oil Fund
USO
$967M
| $1.33M | 0.1% |
121,354
-46,394
| -28% | -$510K |
|
94
Synchrony
SYF
$28.1B
| $1.33M | 0.1% |
43,836
+15,921
| +57% | +$484K |
|
|
TIF
95
DELISTED
Tiffany & Co.
TIF
| $1.33M | 0.1% |
+17,402
| New | +$1.33M |
|
|
XLNX
96
DELISTED
Xilinx Inc
XLNX
| $1.31M | 0.1% |
+27,974
| New | +$1.31M |
|
|
HOT
97
DELISTED
STARWOOD HOTELS & RESORTS WORLDWIDE, INC.
HOT
| $1.3M | 0.1% |
18,810
-15,334
| -45% | -$1.06M |
|
|
BBBY
98
DELISTED
Bed Bath & Beyond Inc
BBBY
| $1.3M | 0.1% |
+26,843
| New | +$1.3M |
|
99
PayPal
PYPL
$66.5B
| $1.22M | 0.1% |
33,678
-606
| -2% | -$21.9K |
|
100
Freeport-McMoran
FCX
$66.3B
| $1.21M | 0.09% |
178,951
+156,457
| +696% | +$1.06M |
|