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 | |
|---|---|---|---|---|---|---|
51
Union Pacific
UNP
$132B
| $2.7M | 0.23% |
28,292
+19,899
| +237% | +$1.9M |
|
52
NXP Semiconductors
NXPI
$57.5B
| $2.64M | 0.22% |
+26,868
| New | +$2.64M |
|
53
Procter & Gamble
PG
$370B
| $2.59M | 0.22% |
33,117
-39,534
| -54% | -$3.09M |
|
54
Western Digital
WDC
$29.8B
| $2.54M | 0.21% |
32,412
+3,820
| +13% | +$299K |
|
55
Melco Resorts & Entertainment
MLCO
$3.95B
| $2.42M | 0.2% |
123,052
+97,393
| +380% | +$1.91M |
|
|
TWC
56
DELISTED
TIME WARNER CABLE INC NEW COM STK
TWC
| $2.4M | 0.2% |
13,486
-3,449
| -20% | -$614K |
|
57
T-Mobile US
TMUS
$284B
| $2.37M | 0.2% |
+61,210
| New | +$2.37M |
|
58
Direxion Daily Small Cap Bull 3x Shares
TNA
$2.13B
| $2.3M | 0.19% |
+25,759
| New | +$2.3M |
|
59
American Tower
AMT
$91.9B
| $2.14M | 0.18% |
22,955
+14,202
| +162% | +$1.32M |
|
60
BP
BP
$88.8B
| $2.12M | 0.18% |
53,056
+44,150
| +496% | +$1.76M |
|
61
Visa
V
$681B
| $2.07M | 0.17% |
+30,802
| New | +$2.07M |
|
|
KRFT
62
DELISTED
KRAFT FOODS GROUP INC COM STK (VA)
KRFT
| $2.02M | 0.17% |
+23,771
| New | +$2.02M |
|
63
First Solar
FSLR
$21.6B
| $2M | 0.17% |
42,655
+26,286
| +161% | +$1.23M |
|
64
Las Vegas Sands
LVS
$38B
| $2M | 0.17% |
37,984
+29,155
| +330% | +$1.53M |
|
65
Bausch Health
BHC
$2.72B
| $1.97M | 0.16% |
8,851
+5,026
| +131% | +$1.12M |
|
66
Trip.com Group
TCOM
$46.6B
| $1.95M | 0.16% |
26,846
+2,142
| +9% | +$156K |
|
|
BRCM
67
DELISTED
BROADCOM CORP CL-A
BRCM
| $1.86M | 0.16% |
+36,202
| New | +$1.86M |
|
68
Mastercard
MA
$536B
| $1.86M | 0.16% |
+19,902
| New | +$1.86M |
|
69
AbbVie
ABBV
$374B
| $1.84M | 0.15% |
27,351
-35,660
| -57% | -$2.4M |
|
|
WWAV
70
DELISTED
The WhiteWave Foods Company
WWAV
| $1.81M | 0.15% |
37,015
+14,110
| +62% | +$690K |
|
|
INFA
71
DELISTED
INFORMATICA CORP
INFA
| $1.78M | 0.15% |
36,782
+24,749
| +206% | +$1.2M |
|
72
Whirlpool
WHR
$5B
| $1.78M | 0.15% |
+10,300
| New | +$1.78M |
|
|
PXD
73
DELISTED
Pioneer Natural Resource Co.
PXD
| $1.76M | 0.15% |
12,719
+5,309
| +72% | +$736K |
|
74
Constellation Brands
STZ
$25.8B
| $1.76M | 0.15% |
15,131
+12,985
| +605% | +$1.51M |
|
|
APC
75
DELISTED
Anadarko Petroleum
APC
| $1.73M | 0.15% |
22,185
-27,065
| -55% | -$2.11M |
|