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 | |
|---|---|---|---|---|---|---|
101
F5
FFIV
$17.8B
| $1.21M | 0.09% |
12,453
-8,240
| -40% | -$799K |
|
102
Lockheed Martin
LMT
$105B
| $1.2M | 0.09% |
+5,508
| New | +$1.2M |
|
103
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$694M
| $1.16M | 0.09% |
40,847
+40,847
| – | – |
|
104
Plains All American Pipeline
PAA
$12.3B
| $1.15M | 0.09% |
+49,961
| New | +$1.15M |
|
|
X
105
DELISTED
US Steel
X
| $1.14M | 0.09% |
143,431
+115,575
| +415% | +$922K |
|
106
Northrop Grumman
NOC
$83.2B
| $1.14M | 0.09% |
6,043
+4,582
| +314% | +$864K |
|
107
Intuit
INTU
$187B
| $1.14M | 0.09% |
11,806
+11,038
| +1,437% | +$1.06M |
|
108
Materials Select Sector SPDR Fund
XLB
$5.46B
| $1.13M | 0.09% |
25,981
-6,723
| -21% | -$292K |
|
|
CTXS
109
DELISTED
Citrix Systems Inc
CTXS
| $1.1M | 0.09% |
14,583
-4,348
| -23% | -$329K |
|
110
Edwards Lifesciences
EW
$47.7B
| $1.1M | 0.09% |
13,945
+12,303
| +749% | +$842K |
|
111
United Rentals
URI
$60.8B
| $1.06M | 0.08% |
14,646
+6,958
| +91% | +$505K |
|
|
JOY
112
DELISTED
Joy Global Inc
JOY
| $1.06M | 0.08% |
83,987
+27,211
| +48% | +$343K |
|
113
Hartford Financial Services
HIG
$37.4B
| $1.06M | 0.08% |
24,378
+16,341
| +203% | +$710K |
|
114
MetLife
MET
$53.6B
| $1.06M | 0.08% |
+21,934
| New | +$1.06M |
|
|
ACAS
115
DELISTED
American Capital Ltd
ACAS
| $1.05M | 0.08% |
76,006
+64,656
| +570% | +$892K |
|
|
ATHN
116
DELISTED
Athenahealth, Inc.
ATHN
| $1.05M | 0.08% |
6,500
+4,701
| +261% | +$756K |
|
117
Prothena Corp
PRTA
$452M
| $1.03M | 0.08% |
15,147
+6,540
| +76% | +$445K |
|
118
RTX Corp
RTX
$212B
| $1.01M | 0.08% |
10,554
-58,203
| -85% | -$5.59M |
|
119
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.78B
| $1M | 0.08% |
18,605
+7,028
| +61% | +$378K |
|
120
Direxion Daily Energy Bull 2X Shares
ERX
$224M
| $1M | 0.08% |
42,684
+20,748
| +95% | +$486K |
|
121
Intel
INTC
$105B
| $995K | 0.08% |
28,901
+3,831
| +15% | +$132K |
|
122
Kinder Morgan
KMI
$59.4B
| $994K | 0.08% |
66,674
+13,606
| +26% | +$203K |
|
123
Sarepta Therapeutics
SRPT
$1.98B
| $994K | 0.08% |
25,776
+13,215
| +105% | +$510K |
|
|
SYT
124
DELISTED
Syngenta Ag
SYT
| $991K | 0.08% |
12,598
-2,298
| -15% | -$181K |
|
125
lululemon athletica
LULU
$23.8B
| $979K | 0.08% |
18,664
-6,035
| -24% | -$317K |
|