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 |
Alphabet (Google) Class C
GOOG
|
$54.1M |
| 2 |
Apple
AAPL
|
$28.6M |
| 3 |
Meta Platforms (Facebook)
META
|
$16.5M |
| 4 |
IBM
IBM
|
$13.4M |
| 5 |
Baidu
BIDU
|
$10.3M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$9.89M |
| 2 |
McDonald's
MCD
|
$8.52M |
| 3 |
Ralph Lauren
RL
|
$5.22M |
| 4 |
Intel
INTC
|
$4.74M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
$4.67M |
Sector Composition
| 1 | Communication Services | 22.01% |
| 2 | Technology | 15.83% |
| 3 | Healthcare | 11.95% |
| 4 | Consumer Discretionary | 9.73% |
| 5 | Financials | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
76
NetEase
NTES
$85.4B
| $1.71M | 0.14% |
11,814
+9,244
| +360% | +$1.34M |
|
|
VIAB
77
DELISTED
Viacom Inc. Class B
VIAB
| $1.7M | 0.14% |
26,366
+21,015
| +393% | +$1.36M |
|
78
Health Care Select Sector SPDR Fund
XLV
$33.8B
| $1.69M | 0.14% |
22,668
+7,811
| +53% | +$581K |
|
79
The Mosaic Company
MOS
$10.4B
| $1.68M | 0.14% |
35,956
+12,978
| +56% | +$608K |
|
|
VMW
80
DELISTED
VMware, Inc
VMW
| $1.68M | 0.14% |
19,586
-6,660
| -25% | -$571K |
|
81
3M
MMM
$81B
| $1.67M | 0.14% |
10,820
-425
| -4% | -$65.5K |
|
82
Chevron
CVX
$318B
| $1.65M | 0.14% |
+17,082
| New | +$1.65M |
|
|
RDS.B
83
DELISTED
Royal Dutch Shell PLC ADS Class B
RDS.B
| $1.63M | 0.14% |
28,379
+18,689
| +193% | +$1.07M |
|
84
Teva Pharmaceuticals
TEVA
$21.5B
| $1.61M | 0.13% |
+27,223
| New | +$1.61M |
|
85
Molson Coors Class B
TAP
$9.85B
| $1.59M | 0.13% |
22,745
+12,015
| +112% | +$838K |
|
86
Regeneron Pharmaceuticals
REGN
$59.8B
| $1.57M | 0.13% |
3,079
-435
| -12% | -$222K |
|
|
HSP
87
DELISTED
HOSPIRA INC
HSP
| $1.57M | 0.13% |
17,667
-3,959
| -18% | -$351K |
|
88
Canadian Pacific Kansas City
CP
$70.4B
| $1.55M | 0.13% |
9,643
+6,545
| +211% | +$1.05M |
|
|
DRC
89
DELISTED
DRESSER-RAND GROUP INC
DRC
| $1.53M | 0.13% |
17,996
+15,788
| +715% | +$1.34M |
|
90
Duke Energy
DUK
$94.5B
| $1.53M | 0.13% |
21,684
+16,344
| +306% | +$1.15M |
|
91
Diageo
DEO
$61.1B
| $1.52M | 0.13% |
13,095
+2,694
| +26% | +$313K |
|
|
BLUE
92
DELISTED
bluebird bio
BLUE
| $1.51M | 0.13% |
8,992
+1,551
| +21% | +$262K |
|
93
VanEck Semiconductor ETF
SMH
$26.6B
| $1.47M | 0.12% |
27,016
+19,916
| +281% | +$1.09M |
|
94
W.W. Grainger
GWW
$48.7B
| $1.46M | 0.12% |
6,175
-2,554
| -29% | -$604K |
|
95
Palo Alto Networks
PANW
$128B
| $1.45M | 0.12% |
8,289
+795
| +11% | +$139K |
|
96
Workday
WDAY
$62.3B
| $1.43M | 0.12% |
18,706
+12,713
| +212% | +$971K |
|
|
GMCR
97
DELISTED
KEURIG GREEN MTN INC
GMCR
| $1.41M | 0.12% |
18,433
+1,087
| +6% | +$83.3K |
|
98
Yum! Brands
YUM
$40.1B
| $1.41M | 0.12% |
15,656
+11,880
| +315% | +$1.07M |
|
99
Coca-Cola
KO
$297B
| $1.41M | 0.12% |
35,836
+25,755
| +255% | +$1.01M |
|
100
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$694M
| $1.39M | 0.12% |
31,700
+31,700
| – | – |
|