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 | |
|---|---|---|---|---|---|---|
|
SYT
3051
CALL
DELISTED
Syngenta Ag
SYT
| $19K | ﹤0.01% |
102
+68
| +200% | +$5.61K |
|
|
PPP
3052
DELISTED
Primero Mining Corp
PPP
| $19K | ﹤0.01% |
11,518
+6,964
| +153% | +$13.4K |
|
|
VAL
3053
PUT
DELISTED
Valspar
VAL
| $19K | ﹤0.01% |
247
-28
| -10% | -$2.98K |
|
|
SWC
3054
CALL
DELISTED
Stillwater Mining Co
SWC
| $19K | ﹤0.01% |
182
-77
| -30% | -$1.03K |
|
|
CPPL
3055
CALL
DELISTED
Columbia Pipeline Partners LP
CPPL
| $19K | ﹤0.01% |
91
+7
| +8% | +$103 |
|
|
STJ
3056
CALL
DELISTED
St Jude Medical
STJ
| $19K | ﹤0.01% |
192
-69
| -26% | -$5.57K |
|
|
IM
3057
CALL
DELISTED
Ingram Micro
IM
| $19K | ﹤0.01% |
181
-67
| -27% | -$2.33K |
|
|
VNR
3058
PUT
DELISTED
Vanguard Natural Resources, LLC
VNR
| $19K | ﹤0.01% |
272
+35
| +15% | +$50 |
|
|
AXDX
3059
CALL
DELISTED
Accelerate Diagnostics
AXDX
| $18K | ﹤0.01% |
8
+4
| +100% | +$885 |
|
3060
CALL
Clearfield
CLFD
$421M
| $18K | ﹤0.01% |
119
+93
| +358% | +$1.72K |
|
3061
Calumet Specialty Products
CLMT
$3.63B
| $18K | ﹤0.01% |
4,118
+1,491
| +57% | +$7.67K |
|
3062
CALL
Cheniere Energy
CQP
$31.8B
| $18K | ﹤0.01% |
160
+12
| +8% | +$333 |
|
3063
CALL
Dominion Energy
D
$62.5B
| $18K | ﹤0.01% |
423
-43
| -9% | -$3.28K |
|
3064
PUT
Diageo
DEO
$46.2B
| $18K | ﹤0.01% |
166
-475
| -74% | -$54.3K |
|
|
DHC
3065
CALL
Diversified Healthcare Trust
DHC
$2.26B
| $18K | ﹤0.01% |
111
-35
| -24% | -$775 |
|
3066
CALL
Estee Lauder
EL
$29B
| $18K | ﹤0.01% |
80
-226
| -74% | -$20.6K |
|
3067
Ezcorp Inc
EZPW
$1.82B
| $18K | ﹤0.01% |
1,708
-9,065
| -84% | -$87.5K |
|
3068
CALL
FIVE9
FIVN
$1.77B
| $18K | ﹤0.01% |
+69
| New | +$942 |
|
3069
CALL
Globant
GLOB
$1.35B
| $18K | ﹤0.01% |
18
-36
| -67% | -$1.47K |
|
3070
CALL
Corning
GLW
$126B
| $18K | ﹤0.01% |
92
-671
| -88% | -$15K |
|
3071
CALL
Gentex
GNTX
$4.88B
| $18K | ﹤0.01% |
145
+75
| +107% | +$1.3K |
|
3072
PUT
Goodyear
GT
$2.07B
| $18K | ﹤0.01% |
203
+13
| +7% | +$378 |
|
3073
PUT
Hasbro
HAS
$12.6B
| $18K | ﹤0.01% |
68
+35
| +106% | +$2.84K |
|
3074
CALL
Hilltop Holdings
HTH
$2.29B
| $18K | ﹤0.01% |
+379
| New | +$8.38K |
|
3075
CALL
IAMGOLD
IAG
$8.47B
| $18K | ﹤0.01% |
203
-84
| -29% | -$383 |
|
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.