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 |
SPDR S&P 500 ETF Trust
SPY
|
$50.9M |
| 2 |
Citigroup
C
|
$25.9M |
| 3 |
Apple
AAPL
|
$25.1M |
| 4 |
Amazon
AMZN
|
$21.7M |
| 5 |
Alphabet (Google) Class C
GOOG
|
$18.3M |
Top Sells
| 1 |
LNKD
LinkedIn Corporation
LNKD
|
$17.4M |
| 2 |
Wells Fargo
WFC
|
$11.9M |
| 3 |
Goldman Sachs
GS
|
$9.91M |
| 4 |
MDVN
MEDIVATION, INC.
MDVN
|
$8.62M |
| 5 |
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
|
$8.15M |
Sector Composition
| 1 | Communication Services | 15.08% |
| 2 | Technology | 12.4% |
| 3 | Healthcare | 11.9% |
| 4 | Consumer Discretionary | 11.24% |
| 5 | Financials | 9.26% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
76
ProShares UltraPro QQQ
TQQQ
$26B
| $2.32M | 0.14% |
18,252
+14,071
| +337% | +$1.79M |
|
77
Blackstone
BX
$131B
| $2.28M | 0.14% |
84,521
-65,248
| -44% | -$1.76M |
|
78
Williams Companies
WMB
$70.5B
| $2.27M | 0.14% |
+73,040
| New | +$2.27M |
|
79
CVR Energy
CVI
$3.11B
| $2.26M | 0.14% |
89,113
+83,101
| +1,382% | +$2.11M |
|
80
ConocoPhillips
COP
$118B
| $2.18M | 0.13% |
43,426
+38,416
| +767% | +$1.93M |
|
81
Synaptics
SYNA
$2.62B
| $2.12M | 0.13% |
39,510
+10,493
| +36% | +$562K |
|
|
AMJ
82
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
| $2.11M | 0.13% |
+66,708
| New | +$2.11M |
|
83
Eaton
ETN
$134B
| $2.1M | 0.13% |
+31,355
| New | +$2.1M |
|
|
PX
84
DELISTED
Praxair Inc
PX
| $2.1M | 0.13% |
17,953
+4,876
| +37% | +$571K |
|
|
ETP
85
DELISTED
Energy Transfer Partners L.p.
ETP
| $2.08M | 0.12% |
58,058
+34,871
| +150% | +$1.25M |
|
86
Western Digital
WDC
$29.8B
| $2.02M | 0.12% |
29,784
+13,110
| +79% | +$890K |
|
87
Capri Holdings
CPRI
$2.51B
| $1.98M | 0.12% |
+46,029
| New | +$1.98M |
|
88
British American Tobacco
BTI
$120B
| $1.97M | 0.12% |
+17,482
| New | +$1.97M |
|
89
Cheniere Energy
LNG
$52.6B
| $1.96M | 0.12% |
+47,393
| New | +$1.96M |
|
90
iShares Silver Trust
SLV
$20.2B
| $1.96M | 0.12% |
+129,743
| New | +$1.96M |
|
91
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.78B
| $1.95M | 0.12% |
33,889
-1,014
| -3% | -$58.2K |
|
92
Direxion Daily S&P 500 Bull 3x Shares
SPXL
$5.41B
| $1.91M | 0.11% |
17,689
-1,951
| -10% | -$210K |
|
93
Lam Research
LRCX
$124B
| $1.87M | 0.11% |
17,726
-12,817
| -42% | -$1.36M |
|
94
Capital One
COF
$142B
| $1.86M | 0.11% |
21,284
+15,676
| +280% | +$1.37M |
|
95
Phillips 66
PSX
$52.8B
| $1.83M | 0.11% |
+21,147
| New | +$1.83M |
|
96
Monster Beverage
MNST
$62B
| $1.82M | 0.11% |
+41,113
| New | +$1.82M |
|
97
Bank of New York Mellon
BK
$73.8B
| $1.8M | 0.11% |
+38,041
| New | +$1.8M |
|
98
WisdomTree Japan Hedged Equity Fund
DXJ
$3.72B
| $1.8M | 0.11% |
36,335
-91,196
| -72% | -$4.52M |
|
99
AstraZeneca
AZN
$255B
| $1.79M | 0.11% |
65,522
-71,704
| -52% | -$1.96M |
|
|
B
100
Barrick Mining Corporation
B
$46.3B
| $1.78M | 0.11% |
+111,411
| New | +$1.78M |
|