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 | |
|---|---|---|---|---|---|---|
|
TIF
126
DELISTED
Tiffany & Co.
TIF
| $2.26M | 0.15% |
37,286
+18,344
| +97% | +$1.22M |
|
127
TripAdvisor
TRIP
$1.61B
| $2.22M | 0.15% |
34,552
+4,475
| +15% | +$290K |
|
|
N
128
DELISTED
Netsuite Inc
N
| $2.16M | 0.14% |
29,710
+21,923
| +282% | +$1.68M |
|
129
lululemon athletica
LULU
$13.2B
| $2.16M | 0.14% |
29,270
+8,294
| +40% | +$550K |
|
|
FISV
130
Fiserv Inc
FISV
$27B
| $2.15M | 0.14% |
39,590
+30,022
| +314% | +$1.55M |
|
|
GG
131
DELISTED
Goldcorp Inc
GG
| $2.13M | 0.14% |
+111,622
| New | +$1.98M |
|
132
MetLife
MET
$59.8B
| $2.13M | 0.14% |
+60,042
| New | +$2.34M |
|
133
iShares MSCI Germany ETF
EWG
$1.51B
| $2.13M | 0.14% |
+88,378
| New | +$2.26M |
|
134
Monster Beverage
MNST
$93.4B
| $2.1M | 0.14% |
+78,378
| New | +$1.89M |
|
|
135
PUT
SPDR Gold Trust
GLD
$132B
| $2.08M | 0.14% |
9,193
-52
| -0.6% | -$6.26K |
|
136
PUT
Direxion Daily Technology Bull 3x ETF
TECL
$5.6B
| $2.07M | 0.14% |
51,160
+5,490
| +12% | +$20.1K |
|
137
Marriott International
MAR
$97B
| $2.04M | 0.14% |
+30,768
| New | +$2.06M |
|
138
PUT
State Street Materials Select Sector SPDR ETF
XLB
$8.31B
| $2.04M | 0.14% |
51,848
+22,888
| +79% | +$533K |
|
|
CBI
139
PUT
DELISTED
Chicago Bridge & Iron Nv
CBI
| $2.02M | 0.14% |
553
-60
| -10% | -$2.21K |
|
|
140
CALL
Broadcom
AVGO
$1.84T
| $2.02M | 0.13% |
16,790
+4,980
| +42% | +$75.8K |
|
|
VIAB
141
DELISTED
Viacom Inc. Class B
VIAB
| $1.99M | 0.13% |
48,038
+10,684
| +29% | +$442K |
|
142
CALL
AT&T
T
$155B
| $1.99M | 0.13% |
8,294
+267
| +3% | +$7.95K |
|
143
CALL
Walmart Inc
WMT
$878B
| $1.98M | 0.13% |
20,835
+8,538
| +69% | +$198K |
|
|
VXX
144
CALL
DELISTED
iPath S&P 500 VIX Short-Term Futures ETN due 1/30/2019
VXX
| $1.94M | 0.13% |
1,159
+711
| +159% | +$177K |
|
145
CALL
Johnson & Johnson
JNJ
$603B
| $1.94M | 0.13% |
2,771
+1,596
| +136% | +$181K |
|
146
CALL
ExxonMobil
XOM
$629B
| $1.93M | 0.13% |
6,501
+1,198
| +23% | +$106K |
|
|
XLNX
147
DELISTED
Xilinx Inc
XLNX
| $1.92M | 0.13% |
+41,655
| New | +$1.9M |
|
148
F5
FFIV
$23.2B
| $1.89M | 0.13% |
16,642
+7,582
| +84% | +$815K |
|
149
PUT
State Street SPDR NYSE Technology ETF
XNTK
$2.16B
| $1.89M | 0.13% |
16,195
+6,375
| +65% | +$336K |
|
150
CALL
Baidu
BIDU
$36.8B
| $1.88M | 0.13% |
2,073
-366
| -15% | -$64.3K |
|
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.