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 |
Invesco QQQ Trust
QQQ
|
$92M |
| 2 |
Walt Disney
DIS
|
$25.4M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
$12.8M |
| 4 |
Baidu
BIDU
|
$12.2M |
| 5 |
RHT
Red Hat Inc
RHT
|
$11.6M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
$61.4M |
| 2 |
Amazon
AMZN
|
$59.6M |
| 3 |
Alphabet (Google) Class C
GOOG
|
$35.5M |
| 4 |
Apple
AAPL
|
$19.6M |
| 5 |
Financial Select Sector SPDR Fund
XLF
|
$18.2M |
Sector Composition
| 1 | Communication Services | 16.98% |
| 2 | Technology | 12.42% |
| 3 | Healthcare | 10.02% |
| 4 | Consumer Discretionary | 8.53% |
| 5 | Industrials | 6.02% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
51
Vanguard FTSE Emerging Markets ETF
VWO
$96.4B
| $3.99M | 0.01% |
+93,848
| New | +$3.99M |
|
|
COUP
52
DELISTED
Coupa Software Incorporated
COUP
| $3.87M | 0.01% |
42,506
+22,952
| +117% | +$2.09M |
|
53
Medtronic
MDT
$118B
| $3.85M | 0.01% |
+42,293
| New | +$3.85M |
|
|
CTXS
54
DELISTED
Citrix Systems Inc
CTXS
| $3.84M | 0.01% |
38,528
-1,697
| -4% | -$169K |
|
|
MLNX
55
DELISTED
Mellanox Technologies, Ltd.
MLNX
| $3.81M | 0.01% |
32,173
+24,944
| +345% | +$2.95M |
|
56
Humana
HUM
$37.5B
| $3.81M | 0.01% |
+14,307
| New | +$3.81M |
|
57
Truist Financial
TFC
$59.2B
| $3.77M | 0.01% |
+81,067
| New | +$3.77M |
|
58
iShares China Large-Cap ETF
FXI
$6.65B
| $3.76M | 0.01% |
+84,954
| New | +$3.76M |
|
59
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$266M
| $3.71M | 0.01% |
+126,672
| New | +$3.71M |
|
60
Progressive
PGR
$144B
| $3.52M | 0.01% |
48,786
+40,998
| +526% | +$2.95M |
|
61
Restaurant Brands International
QSR
$20.5B
| $3.48M | 0.01% |
53,507
-3,775
| -7% | -$246K |
|
62
Intuit
INTU
$184B
| $3.48M | 0.01% |
+13,318
| New | +$3.48M |
|
63
United Airlines
UAL
$34.3B
| $3.47M | 0.01% |
+43,508
| New | +$3.47M |
|
64
Alexandria Real Estate Equities
ARE
$13.9B
| $3.47M | 0.01% |
+24,323
| New | +$3.47M |
|
65
JPMorgan Chase
JPM
$816B
| $3.39M | 0.01% |
+33,478
| New | +$3.39M |
|
66
Cencora
COR
$57.1B
| $3.38M | 0.01% |
42,489
+30,435
| +252% | +$2.42M |
|
67
ServiceNow
NOW
$189B
| $3.37M | 0.01% |
13,657
+1,685
| +14% | +$415K |
|
|
SPLK
68
DELISTED
Splunk Inc
SPLK
| $3.35M | 0.01% |
26,905
+6,980
| +35% | +$870K |
|
69
iShares 7-10 Year Treasury Bond ETF
IEF
$35.6B
| $3.27M | 0.01% |
+30,689
| New | +$3.27M |
|
70
TransDigm Group
TDG
$72.4B
| $3.19M | 0.01% |
7,026
-6,475
| -48% | -$2.94M |
|
71
Pinduoduo
PDD
$176B
| $3.17M | 0.01% |
128,023
+110,822
| +644% | +$2.75M |
|
72
Stanley Black & Decker
SWK
$11.3B
| $3.12M | 0.01% |
22,915
+21,809
| +1,972% | +$2.97M |
|
73
Analog Devices
ADI
$120B
| $3.11M | 0.01% |
+29,584
| New | +$3.11M |
|
74
CME Group
CME
$96.4B
| $3M | 0.01% |
+18,246
| New | +$3M |
|
75
PNC Financial Services
PNC
$80B
| $2.96M | 0.01% |
+24,091
| New | +$2.96M |
|