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
| Rank | Stock | Value |
|---|---|---|
| 1 |
LNKD
LinkedIn Corporation
LNKD
|
+$21.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$17.3M |
| 3 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$15M |
| 4 |
Biogen
BIIB
|
+$14.9M |
| 5 |
Visa
V
|
+$14.1M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$36.7M |
| 2 |
Alphabet (Google) Class C
GOOG
|
+$20.1M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
Citigroup
C
|
+$14.7M |
| 5 |
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
|
+$13.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 6.61% |
| 2 | Healthcare | 6.55% |
| 3 | Technology | 6.45% |
| 4 | Consumer Discretionary | 4.54% |
| 5 | Financials | 4.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
101
Direxion Daily Financial Bull 3x ETF
FAS
$2.38B
| $2.5M | 0.17% |
98,424
+25,967
| +36% | +$683K |
|
|
WWAV
102
DELISTED
The WhiteWave Foods Company
WWAV
| $2.5M | 0.17% |
53,312
+20,684
| +63% | +$888K |
|
103
Coca-Cola
KO
$353B
| $2.5M | 0.17% |
55,111
+1,563
| +3% | +$70.6K |
|
|
104
PUT
Citigroup
C
$216B
| $2.49M | 0.17% |
7,180
-2,999
| -29% | -$133K |
|
105
Boeing
BA
$161B
| $2.47M | 0.17% |
+19,039
| New | +$2.48M |
|
|
CBPO
106
DELISTED
China Biologic Products Holdings, Inc.
CBPO
| $2.47M | 0.17% |
23,254
+17,183
| +283% | +$2M |
|
|
PPLC
107
PUT
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $2.47M | 0.17% |
4,959
+1,633
| +49% | +$42.3K |
|
108
JD.com
JD
$41.1B
| $2.43M | 0.16% |
+114,608
| New | +$2.77M |
|
109
PUT
Goldman Sachs
GS
$311B
| $2.42M | 0.16% |
5,838
+2,453
| +72% | +$383K |
|
|
POT
110
DELISTED
Potash Corp Of Saskatchewan
POT
| $2.4M | 0.16% |
+148,123
| New | +$2.48M |
|
111
Apple
AAPL
$4.81T
| $2.4M | 0.16% |
+100,440
| New | +$2.5M |
|
112
CALL
Direxion Daily Technology Bull 3x ETF
TECL
$5.6B
| $2.39M | 0.16% |
48,040
-14,650
| -23% | -$53.6K |
|
|
JO
113
DELISTED
iPath Bloomberg Coffee Subindex Total Return ETN due June 24, 2038
JO
| $2.38M | 0.16% |
107,417
+104,908
| +4,181% | +$2.05M |
|
114
Rio Tinto
RIO
$147B
| $2.38M | 0.16% |
75,998
+37,816
| +99% | +$1.13M |
|
115
Morgan Stanley
MS
$332B
| $2.38M | 0.16% |
+91,484
| New | +$2.39M |
|
116
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.83B
| $2.37M | 0.16% |
93,878
+49,266
| +110% | +$1.28M |
|
117
iShares Biotechnology ETF
IBB
$9.37B
| $2.37M | 0.16% |
27,600
-50,007
| -64% | -$4.49M |
|
118
Micron Technology
MU
$1.1T
| $2.36M | 0.16% |
+171,555
| New | +$1.95M |
|
|
ICPT
119
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $2.35M | 0.16% |
+16,469
| New | +$2.4M |
|
120
Charter Communications
CHTR
$15.9B
| $2.32M | 0.16% |
10,168
-6,857
| -40% | -$1.47M |
|
121
ConocoPhillips
COP
$143B
| $2.32M | 0.16% |
+53,310
| New | +$2.35M |
|
|
AGN
122
CALL
DELISTED
Allergan plc
AGN
| $2.32M | 0.16% |
2,603
+1,852
| +247% | +$427K |
|
123
CALL
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$46B
| $2.3M | 0.15% |
7,812
+955
| +14% | +$170K |
|
124
Direxion Daily S&P 500 Bull 3x ETF
SPXL
$6.84B
| $2.28M | 0.15% |
103,660
-12,852
| -11% | -$275K |
|
125
CALL
IBM
IBM
$198B
| $2.27M | 0.15% |
3,849
+633
| +20% | +$90.6K |
|
Similar funds
Simplex Trading's Q2 2016 Portfolio in Review
As of Q2 2016, Simplex Trading held 7,153 positions worth $1.5B, up 19% from $1.25B the previous quarter. Its ten largest holdings account for 19% of the portfolio.
Simplex Trading deployed $178M of net new capital in Q2 2016, opening 1,586 new positions and adding to 2,321 existing holdings. Its largest new stake was Biogen: 56,467 shares worth $13.7M.
By sector, the portfolio is most concentrated in Communication Services at 6.6% of assets, down from 6.9% a quarter earlier, followed by Healthcare and Technology.
On the sell side, the largest reduction was Broadcom, an estimated $36.7M trimmed.
- Simplex Trading's largest Q2 2016 buy was Biogen: 56,467 shares worth $13.7M.
- Simplex Trading added most to LinkedIn Corporation in Q2 2016, an estimated $21.4M increase.
- Simplex Trading's biggest Q2 2016 reduction was Broadcom, cutting an estimated $36.7M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q2 2016, selling an estimated $20.1M.
- Simplex Trading's ten largest holdings make up 19% of its $1.5B portfolio in Q2 2016.
- Simplex Trading opened 1,586 new positions and closed 1,363 in Q2 2016.
- Simplex Trading's portfolio value rose 19% quarter-over-quarter to $1.5B.
Based on Simplex Trading's 13F filing for Q2 2016, filed 18 Jul 2016.