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 |
LNKD
LinkedIn Corporation
LNKD
|
$29.3M |
| 2 |
SPDR Gold Trust
GLD
|
$18.1M |
| 3 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
$14.9M |
| 4 |
Biogen
BIIB
|
$13.7M |
| 5 |
Visa
V
|
$13.3M |
Top Sells
| 1 |
Broadcom
AVGO
|
$37.4M |
| 2 |
Alphabet (Google) Class C
GOOG
|
$20.1M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
$15.8M |
| 4 |
Citigroup
C
|
$13.9M |
| 5 |
SPDR S&P MidCap 400 ETF Trust
MDY
|
$12.9M |
Sector Composition
| 1 | Communication Services | 12.51% |
| 2 | Healthcare | 12.38% |
| 3 | Technology | 12.22% |
| 4 | Consumer Discretionary | 8.59% |
| 5 | Financials | 8.53% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
26
PayPal
PYPL
$67.1B
| $5.05M | 0.34% | +138,328 | New | +$5.05M |
|
27
Energy Transfer Partners
ET
$60.8B
| $4.83M | 0.32% | +336,392 | New | +$4.83M |
|
28
Amgen
AMGN
$155B
| $4.21M | 0.28% | 27,673 -6,632 | -19% | -$1.01M |
|
|
29
Alphabet (Google) Class A
GOOGL
$2.57T
| $4.19M | 0.28% | 5,953 -2,725 | -31% | -$1.92M |
|
30
Western Digital
WDC
$27.9B
| $4.14M | 0.28% | +87,651 | New | +$4.14M |
|
31
Comcast
CMCSA
$125B
| $4.06M | 0.27% | 62,250 +44,567 | +252% | +$2.91M |
|
32
JPMorgan Chase
JPM
$829B
| $4.01M | 0.27% | 64,557 +51,601 | +398% | +$3.21M |
|
|
GOLD
33
DELISTED
Randgold Resources Ltd
GOLD
| $3.78M | 0.25% | 33,752 +16,141 | +92% | +$1.81M |
|
34
FedEx
FDX
$54.5B
| $3.77M | 0.25% | +24,806 | New | +$3.77M |
|
|
SHPG
35
DELISTED
Shire pic
SHPG
| $3.73M | 0.25% | 20,289 +15,537 | +327% | +$2.86M |
|
36
Gilead Sciences
GILD
$140B
| $3.66M | 0.24% | 43,854 +27,576 | +169% | +$2.3M |
|
|
TWTR
37
DELISTED
Twitter, Inc.
TWTR
| $3.57M | 0.24% | 211,271 -125,034 | -37% | -$2.11M |
|
38
PepsiCo
PEP
$204B
| $3.17M | 0.21% | +29,924 | New | +$3.17M |
|
39
Hershey
HSY
$37.3B
| $3.17M | 0.21% | +27,909 | New | +$3.17M |
|
40
Waste Connections
WCN
$47.5B
| $3.13M | 0.21% | +43,438 | New | +$3.13M |
|
41
Devon Energy
DVN
$22.9B
| $3.03M | 0.2% | 83,676 -13,550 | -14% | -$491K |
|
42
SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$1.9B
| $3M | 0.2% | +86,245 | New | +$3M |
|
43
iShares Russell 2000 ETF
IWM
$67B
| $2.98M | 0.2% | 25,894 +15,520 | +150% | +$1.78M |
|
44
Industrial Select Sector SPDR Fund
XLI
$23.3B
| $2.9M | 0.19% | +51,821 | New | +$2.9M |
|
45
iShares China Large-Cap ETF
FXI
$6.65B
| $2.89M | 0.19% | +84,543 | New | +$2.89M |
|
46
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$690M
| $2.88M | 0.19% | 304,960 +76,288 | +33% | +$719K |
|
47
Materials Select Sector SPDR Fund
XLB
$5.53B
| $2.84M | 0.19% | +61,205 | New | +$2.84M |
|
|
ENDP
48
DELISTED
Endo International plc
ENDP
| $2.76M | 0.18% | 177,317 +132,551 | +296% | +$2.07M |
|
49
Ulta Beauty
ULTA
$22.1B
| $2.73M | 0.18% | 11,187 +4,077 | +57% | +$993K |
|
50
AB InBev
BUD
$122B
| $2.66M | 0.18% | 20,232 -4,770 | -19% | -$628K |
|