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 | |
|---|---|---|---|---|---|---|
|
WWAV
2176
PUT
DELISTED
The WhiteWave Foods Company
WWAV
| $45K | ﹤0.01% |
172
-456
| -73% | -$19.6K |
|
|
LXK
2177
CALL
DELISTED
Lexmark Intl Inc
LXK
| $45K | ﹤0.01% |
1,172
+745
| +174% | +$27.5K |
|
|
RHT
2178
PUT
DELISTED
Red Hat Inc
RHT
| $45K | ﹤0.01% |
120
-191
| -61% | -$14.3K |
|
2179
Federal Agricultural Mortgage
AGM
$2.27B
| $44K | ﹤0.01% |
+1,277
| New | +$47.4K |
|
2180
PUT
Entravision Communication
EVC
$983M
| $44K | ﹤0.01% |
+421
| New | +$3.02K |
|
2181
CALL
Harley-Davidson
HOG
$2.68B
| $44K | ﹤0.01% |
309
-80
| -21% | -$3.68K |
|
2182
iShares US Healthcare Providers ETF
IHF
$1.18B
| $44K | ﹤0.01% |
1,735
-785
| -31% | -$19.7K |
|
|
LNW
2183
PUT
DELISTED
Light & Wonder
LNW
| $44K | ﹤0.01% |
332
-236
| -42% | -$2.23K |
|
2184
PUT
Polaris
PII
$4.15B
| $44K | ﹤0.01% |
290
+233
| +409% | +$20.7K |
|
2185
PUT
Steel Dynamics
STLD
$35.6B
| $44K | ﹤0.01% |
+497
| New | +$12.1K |
|
2186
PUT
NCR Voyix
VYX
$1.06B
| $44K | ﹤0.01% |
215
+49
| +30% | +$887 |
|
2187
CALL
YPF
YPF
$20.2B
| $44K | ﹤0.01% |
1,048
-790
| -43% | -$15.7K |
|
|
SDRL
2188
CALL
DELISTED
Seadrill Limited Common Stock
SDRL
| $44K | ﹤0.01% |
3
| – | – |
|
|
ATVI
2189
PUT
DELISTED
Activision Blizzard
ATVI
| $44K | ﹤0.01% |
1,426
+981
| +220% | +$36K |
|
2190
CALL
Cimpress
CMPR
$2.37B
| $43K | ﹤0.01% |
102
-70
| -41% | -$6.57K |
|
2191
PUT
Diageo
DEO
$46.2B
| $43K | ﹤0.01% |
641
+410
| +177% | +$44.3K |
|
2192
PUT
Duke Energy
DUK
$102B
| $43K | ﹤0.01% |
91
-288
| -76% | -$23K |
|
2193
Geron
GERN
$911M
| $43K | ﹤0.01% |
16,097
+5,551
| +53% | +$16.2K |
|
2194
CALL
Integra LifeSciences
IART
$1.54B
| $43K | ﹤0.01% |
+150
| New | +$5.4K |
|
2195
iShares S&P 500 Value ETF
IVE
$48.9B
| $43K | ﹤0.01% |
463
-6,606
| -93% | -$605K |
|
2196
CALL
Labcorp
LH
$24.3B
| $43K | ﹤0.01% |
171
-33
| -16% | -$3.55K |
|
2197
MBIA
MBI
$288M
| $43K | ﹤0.01% |
+6,341
| New | +$47.1K |
|
2198
PUT
Meritage Homes
MTH
$4.87B
| $43K | ﹤0.01% |
252
+134
| +114% | +$2.43K |
|
|
IMVP
2199
Invesco India ETF
IMVP
$122M
| $43K | ﹤0.01% |
2,235
+1,831
| +453% | +$36K |
|
2200
Prospect Capital
PSEC
$1.06B
| $43K | ﹤0.01% |
5,587
-42,092
| -88% | -$317K |
|
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.