We are live on ! Find out more
Simplex Trading

Simplex Trading Portfolio holdings

AUM $149B
1-Year Est. Return 62.07%
 

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.

This Fund
S&P 500
This Quarter Est. Return
+6.2%
1 Year Est. Return
+62.07%
3 Year Est. Return
+116.86%
5 Year Est. Return
+116.02%
10 Year Est. Return
+774.44%
AUM
$2.32B
AUM Growth
-$126M
Cap. Flow
-$315M
Cap. Flow %
-13.55%
Top 10 Hldgs %
17.34%
Holding
7,407
New
1,548
Increased
2,053
Reduced
2,239
Closed
1,460

Top Buys

Rank Stock Value
1
CELG
Celgene Corp
CELG
+$31.6M
2
C icon
Citigroup
C
+$19.5M
3
AGN
Allergan plc
AGN
+$18.4M
4
BIDU icon
Baidu
BIDU
+$18M
5
EEM icon
iShares MSCI Emerging Markets ETF
EEM
+$14.2M

Top Sells

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$81.3M
2
NVDA icon
NVIDIA
NVDA
+$60.2M
3
GOOG icon
Alphabet (Google) Class C
GOOG
+$48.2M
4
AAPL icon
Apple
AAPL
+$48.2M
5
META icon
Meta Platforms (Facebook)
META
+$31.2M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 11.27%
2 Technology 10.64%
3 Healthcare 7.06%
4 Communication Services 6.92%
5 Industrials 5.66%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
DOC icon
5151
CALL
Healthpeak Properties
DOC
$15.5B
$2K ﹤0.01%
56
-48
-46% -$1.27K
DORM icon
5152
Dorman Products
DORM
$4.08B
$2K ﹤0.01%
44
-309
-88% -$20.9K
DXPE icon
5153
CALL
DXP Enterprises
DXPE
$2.57B
$2K ﹤0.01%
33
-23
-41% -$669
EC icon
5154
CALL
Ecopetrol
EC
$32.5B
$2K ﹤0.01%
+25
New +$287
EEFT icon
5155
CALL
Euronet Worldwide
EEFT
$3.01B
$2K ﹤0.01%
127
+104
+452% +$9.63K
EME icon
5156
CALL
Emcor
EME
$33B
$2K ﹤0.01%
+9
New +$697
ENPH icon
5157
PUT
Enphase Energy
ENPH
$5.01B
$2K ﹤0.01%
+39
New +$82
EPC icon
5158
CALL
Edgewell Personal Care
EPC
$1.28B
$2K ﹤0.01%
16
-6
-27% -$378
ERIC icon
5159
CALL
Ericsson
ERIC
$31.8B
$2K ﹤0.01%
+71
New +$443
ESRT icon
5160
CALL
Empire State Realty Trust
ESRT
$969M
$2K ﹤0.01%
33
-1
-3% -$20
EVH icon
5161
CALL
Evolent Health
EVH
$429M
$2K ﹤0.01%
+292
New +$4.12K
EWBC icon
5162
CALL
East-West Bancorp
EWBC
$17.8B
$2K ﹤0.01%
6
-1
-14% -$60
EXR icon
5163
PUT
Extra Space Storage
EXR
$31.3B
$2K ﹤0.01%
258
+192
+291% +$16.2K
DMC
5164
PUT
Del Monte Corp
DMC
$1.36B
$2K ﹤0.01%
20
-1
-5% -$47
FN icon
5165
CALL
Fabrinet
FN
$16.9B
$2K ﹤0.01%
138
-201
-59% -$6.65K
FUL icon
5166
CALL
H.B. Fuller
FUL
$3.04B
$2K ﹤0.01%
+41
New +$2.28K
FUN icon
5167
PUT
Cedar Fair
FUN
$1.8B
$2K ﹤0.01%
11
-23
-68% -$1.51K
TDAY
5168
CALL
USA Today Co
TDAY
$1.22B
$2K ﹤0.01%
+22
New +$357
GDOT icon
5169
CALL
Green Dot
GDOT
$746M
$2K ﹤0.01%
17
-31
-65% -$1.82K
GIFI
5170
PUT
DELISTED
Gulf Island Fabrication
GIFI
$2K ﹤0.01%
+191
New +$2.42K
GKOS icon
5171
PUT
Glaukos
GKOS
$8.92B
$2K ﹤0.01%
+2
New +$60
GL icon
5172
CALL
Globe Life
GL
$13.5B
$2K ﹤0.01%
+4
New +$343
GLOB icon
5173
PUT
Globant
GLOB
$1.41B
$2K ﹤0.01%
15
-33
-69% -$1.33K
GOGL
5174
PUT
DELISTED
Golden Ocean Group
GOGL
$2K ﹤0.01%
48
-195
-80% -$1.58K
GPC icon
5175
PUT
Genuine Parts
GPC
$17.6B
$2K ﹤0.01%
158
-69
-30% -$6.3K
205 206
207
208 209

Similar funds

Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $149B AUM 24.71% 1-Year Est. Return
Creative Planning
Creative Planning Overland Park, Kansas $147B AUM 18.73% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Simplex Trading's Q4 2017 Portfolio in Review

As of Q4 2017, Simplex Trading held 7,407 positions worth $2.32B, down 5.1% from $2.45B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

Simplex Trading withdrew a net $315M in Q4 2017, closing 1,460 positions and reducing 2,239 holdings. Its most notable exit was iShares 20+ Year Treasury Bond ETF, an estimated $21.1M position sold in full.

By sector, the portfolio is most concentrated in Consumer Discretionary at 11% of assets, down from 14% a quarter earlier, followed by Technology and Healthcare.

Against the trend, Simplex Trading opened a new position in Celgene Corp worth $29.2M.

  • Simplex Trading's largest Q4 2017 buy was Celgene Corp: 280,194 shares worth $29.2M.
  • Simplex Trading added most to Baidu in Q4 2017, an estimated $18M increase.
  • Simplex Trading's biggest Q4 2017 reduction was Amazon, cutting an estimated $81.3M.
  • Simplex Trading fully exited iShares 20+ Year Treasury Bond ETF in Q4 2017, selling an estimated $21.1M.
  • Simplex Trading's ten largest holdings make up 17% of its $2.32B portfolio in Q4 2017.
  • Simplex Trading opened 1,548 new positions and closed 1,460 in Q4 2017.
  • Simplex Trading's portfolio value fell 5.1% quarter-over-quarter to $2.32B.

Based on Simplex Trading's 13F filing for Q4 2017, filed 10 Jan 2018.