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 |
Gilead Sciences
GILD
|
+$17.3M |
| 2 |
Apple
AAPL
|
+$15.2M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$14.9M |
| 4 |
Booking.com
BKNG
|
+$14.7M |
| 5 |
Wells Fargo
WFC
|
+$12.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$38.3M |
| 2 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$30.7M |
| 3 |
LNKD
LinkedIn Corporation
LNKD
|
+$15.2M |
| 4 |
CELG
Celgene Corp
CELG
|
+$12.6M |
| 5 |
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
|
+$10.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 8.39% |
| 2 | Healthcare | 8.28% |
| 3 | Consumer Discretionary | 6.84% |
| 4 | Technology | 6.06% |
| 5 | Financials | 4.39% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
126
CALL
State Street SPDR NYSE Technology ETF
XNTK
$2.16B
| $2.24M | 0.15% |
8,723
+2,504
| +40% | +$144K |
|
|
AGN
127
DELISTED
Allergan plc
AGN
| $2.23M | 0.15% |
9,689
-20,055
| -67% | -$4.9M |
|
128
HCA Healthcare
HCA
$82.2B
| $2.1M | 0.14% |
+27,815
| New | +$2.13M |
|
|
ALXN
129
DELISTED
Alexion Pharmaceuticals
ALXN
| $2.08M | 0.14% |
17,019
+922
| +6% | +$119K |
|
|
TWTR
130
PUT
DELISTED
Twitter, Inc.
TWTR
| $2.08M | 0.14% |
9,211
+3,104
| +51% | +$58.4K |
|
131
Incyte
INCY
$23.1B
| $2.06M | 0.14% |
+21,890
| New | +$1.84M |
|
132
Vodafone
VOD
$35.2B
| $2.01M | 0.14% |
68,842
+15,850
| +30% | +$483K |
|
133
Constellation Brands
STZ
$22.3B
| $1.95M | 0.13% |
11,711
+11,247
| +2,424% | +$1.85M |
|
134
CALL
Micron Technology
MU
$1.1T
| $1.95M | 0.13% |
6,453
-2,025
| -24% | -$30.9K |
|
135
PUT
Wynn Resorts
WYNN
$9.93B
| $1.94M | 0.13% |
4,271
+1,524
| +55% | +$149K |
|
136
General Motors
GM
$71.7B
| $1.92M | 0.13% |
+60,458
| New | +$1.89M |
|
137
Direxion Daily S&P 500 Bull 3x ETF
SPXL
$6.84B
| $1.91M | 0.13% |
78,560
-25,100
| -24% | -$605K |
|
138
Molson Coors Class B
TAP
$7.8B
| $1.9M | 0.13% |
17,322
+12,728
| +277% | +$1.29M |
|
139
TripAdvisor
TRIP
$1.61B
| $1.89M | 0.13% |
29,953
-4,599
| -13% | -$296K |
|
140
CALL
Chevron
CVX
$381B
| $1.89M | 0.13% |
3,554
+296
| +9% | +$30.2K |
|
141
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.83B
| $1.88M | 0.13% |
69,806
-24,072
| -26% | -$636K |
|
|
PXD
142
CALL
DELISTED
Pioneer Natural Resource Co.
PXD
| $1.87M | 0.13% |
916
+141
| +18% | +$24K |
|
143
CALL
iShares MSCI Australia ETF
EWA
$1.34B
| $1.87M | 0.13% |
6,596
-106
| -2% | -$2.17K |
|
144
Elevance Health
ELV
$82.9B
| $1.84M | 0.13% |
+14,726
| New | +$1.9M |
|
|
RDS.B
145
DELISTED
Royal Dutch Shell PLC ADS Class B
RDS.B
| $1.83M | 0.12% |
+34,735
| New | +$1.86M |
|
146
lululemon athletica
LULU
$13.2B
| $1.83M | 0.12% |
29,957
+687
| +2% | +$50.7K |
|
147
National Beverage
FIZZ
$2.92B
| $1.81M | 0.12% |
82,410
+69,468
| +537% | +$1.87M |
|
|
CVT
148
DELISTED
CVENT, INC.
CVT
| $1.81M | 0.12% |
57,103
-16,063
| -22% | -$524K |
|
149
Coty
COTY
$2.42B
| $1.8M | 0.12% |
76,687
+68,812
| +874% | +$1.82M |
|
|
UWC
150
CALL
DELISTED
PROSHARES TR ULTRA RUSSELL3000
UWC
| $1.78M | 0.12% |
1,179
-494
| -30% | -$747K |
|
Similar funds
Simplex Trading's Q3 2016 Portfolio in Review
As of Q3 2016, Simplex Trading held 7,235 positions worth $1.48B, down 1.4% from $1.5B the previous quarter. Its ten largest holdings account for 18% of the portfolio.
Simplex Trading withdrew a net $87.1M in Q3 2016, closing 1,479 positions and reducing 1,939 holdings. Its most notable exit was SPDR Gold Trust, an estimated $38.3M position sold in full.
By sector, the portfolio is most concentrated in Communication Services at 8.4% of assets, up from 6.6% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Simplex Trading opened a new position in Booking.com worth $15.6M.
- Simplex Trading's largest Q3 2016 buy was Booking.com: 264,225 shares worth $15.6M.
- Simplex Trading added most to Gilead Sciences in Q3 2016, an estimated $17.3M increase.
- Simplex Trading's biggest Q3 2016 reduction was LinkedIn Corporation, cutting an estimated $15.2M.
- Simplex Trading fully exited SPDR Gold Trust in Q3 2016, selling an estimated $38.3M.
- Simplex Trading's ten largest holdings make up 18% of its $1.48B portfolio in Q3 2016.
- Simplex Trading opened 1,460 new positions and closed 1,479 in Q3 2016.
- Simplex Trading's portfolio value fell 1.4% quarter-over-quarter to $1.48B.
Based on Simplex Trading's 13F filing for Q3 2016, filed 7 Oct 2016.