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 | |
|---|---|---|---|---|---|---|
|
RSX
51
DELISTED
VanEck Russia ETF
RSX
| $2.67M | 0.21% |
182,541
+139,105
| +320% | +$2.04M |
|
52
Bank of America
BAC
$371B
| $2.62M | 0.21% |
155,884
+115,864
| +290% | +$1.95M |
|
53
General Motors
GM
$55B
| $2.5M | 0.2% |
73,627
+30,454
| +71% | +$1.04M |
|
54
HCA Healthcare
HCA
$95.4B
| $2.47M | 0.19% |
36,503
-23,789
| -39% | -$1.61M |
|
55
Caterpillar
CAT
$194B
| $2.37M | 0.19% |
+34,818
| New | +$2.37M |
|
56
Thermo Fisher Scientific
TMO
$183B
| $2.3M | 0.18% |
16,231
+15,122
| +1,364% | +$2.14M |
|
|
VNET
57
VNET Group
VNET
$2.15B
| $2.29M | 0.18% |
108,146
+68,097
| +170% | +$1.44M |
|
|
SINA
58
DELISTED
Sina Corp
SINA
| $2.25M | 0.18% |
45,485
+31,184
| +218% | +$1.54M |
|
59
Electronic Arts
EA
$42B
| $2.17M | 0.17% |
31,558
-13,277
| -30% | -$912K |
|
60
Comcast
CMCSA
$125B
| $2.16M | 0.17% |
38,364
+16,182
| +73% | +$913K |
|
61
Under Armour
UAA
$2.17B
| $2.06M | 0.16% |
25,542
+14,732
| +136% | +$1.19M |
|
|
VIAB
62
DELISTED
Viacom Inc. Class B
VIAB
| $2.02M | 0.16% |
49,017
+18,313
| +60% | +$754K |
|
|
LNKD
63
DELISTED
LinkedIn Corporation
LNKD
| $1.95M | 0.15% |
+8,675
| New | +$1.95M |
|
64
JPMorgan Chase
JPM
$824B
| $1.91M | 0.15% |
28,876
-63,316
| -69% | -$4.18M |
|
65
Expedia Group
EXPE
$26.3B
| $1.9M | 0.15% |
15,311
+14,384
| +1,552% | +$1.79M |
|
|
CVC
66
DELISTED
CABLEVISION SYS CP NY GRP CL-A
CVC
| $1.86M | 0.15% |
58,452
+8,565
| +17% | +$273K |
|
|
ETP
67
DELISTED
Energy Transfer Partners L.p.
ETP
| $1.86M | 0.15% |
55,151
+30,927
| +128% | +$1.04M |
|
68
Illumina
ILMN
$15.2B
| $1.85M | 0.15% |
+9,662
| New | +$1.85M |
|
69
Polaris
PII
$3.22B
| $1.75M | 0.14% |
+20,332
| New | +$1.75M |
|
|
HZNP
70
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
| $1.73M | 0.14% |
79,959
+65,620
| +458% | +$1.42M |
|
|
CBI
71
DELISTED
Chicago Bridge & Iron Nv
CBI
| $1.7M | 0.13% |
+43,659
| New | +$1.7M |
|
72
Elevance Health
ELV
$72.4B
| $1.69M | 0.13% |
+12,107
| New | +$1.69M |
|
|
AMJ
73
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
| $1.68M | 0.13% |
58,086
+27,838
| +92% | +$806K |
|
|
MNK
74
DELISTED
MALLINCKRODT PUBLIC LIMITED COMPANY
MNK
| $1.68M | 0.13% |
22,530
-11,793
| -34% | -$880K |
|
75
Oracle
ORCL
$628B
| $1.65M | 0.13% |
45,284
+13,167
| +41% | +$481K |
|