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
+5.95%
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
$1.28B
AUM Growth
-$87.1M
Cap. Flow
-$10.4M
Cap. Flow %
-0.82%
Top 10 Hldgs %
18.64%
Holding
7,008
New
1,417
Increased
1,993
Reduced
1,803
Closed
1,598

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$34.8M
2
BHC icon
Bausch Health
BHC
+$20.3M
3
CMG icon
Chipotle Mexican Grill
CMG
+$18.9M
4
GMCR
KEURIG GREEN MTN INC
GMCR
+$12.3M
5
AMZN icon
Amazon
AMZN
+$12.2M

Top Sells

Rank Stock Value
1
IWM icon
iShares Russell 2000 ETF
IWM
+$27.5M
2
DIA icon
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
+$13.8M
3
TLT icon
iShares 20+ Year Treasury Bond ETF
TLT
+$12.1M
4
NFLX icon
Netflix
NFLX
+$10.7M
5
EEM icon
iShares MSCI Emerging Markets ETF
EEM
+$10.7M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 9.5%
2 Healthcare 7.55%
3 Technology 7.01%
4 Communication Services 6.66%
5 Industrials 5.76%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
VRSK icon
6201
Verisk Analytics
VRSK
$25.3B
– –
-542
Closed -$41.2K
VSAT icon
6202
CALL
Viasat
VSAT
$10.1B
– –
-6
Closed -$1K
VSH icon
6203
CALL
Vishay Intertechnology
VSH
$6.26B
– –
-87
Closed -$5K
VSH icon
6204
PUT
Vishay Intertechnology
VSH
$6.26B
– –
-15
Closed -$4K
VSTM icon
6205
Verastem
VSTM
$543M
– –
-645
Closed -$13K
VSTM icon
6206
PUT
Verastem
VSTM
$543M
– –
-7
Closed -$29K
VT icon
6207
Vanguard Total World Stock ETF
VT
$76.3B
– –
-3,022
Closed -$167K
VTLE
6208
DELISTED
Vital Energy
VTLE
$0 ﹤0.01%
3
-189
-98% -$41.4K
WAFD icon
6209
CALL
WaFd
WAFD
$2.72B
– –
-23
Closed -$2K
WAT icon
6210
CALL
Waters Corp
WAT
$37.5B
– –
-12
Closed -$1K
WB icon
6211
Weibo
WB
$1.92B
– –
-13,008
Closed -$223K
WBA
6212
DELISTED
Walgreens Boots Alliance
WBA
– –
-37,433
Closed -$3.18M
WBD icon
6213
Warner Bros
WBD
$65.1B
– –
-7,192
Closed -$187K
WBS icon
6214
Webster Financial
WBS
$12.2B
– –
-453
Closed -$17.2K
WBS icon
6215
PUT
Webster Financial
WBS
$12.2B
– –
-18
Closed -$1K
WDC icon
6216
Western Digital
WDC
$192B
– –
-2,073
Closed -$106K
WERN icon
6217
Werner Enterprises
WERN
$2.63B
– –
-2,959
Closed -$76.8K
WEN icon
6218
Wendy's
WEN
$1.37B
– –
-300
Closed -$2.96K
WES icon
6219
Western Midstream Partners
WES
$19.8B
– –
-181
Closed -$7K
WES icon
6220
PUT
Western Midstream Partners
WES
$19.8B
– –
-24
Closed -$26K
WEX icon
6221
WEX
WEX
$5.94B
– –
-1,174
Closed -$101K
WEX icon
6222
PUT
WEX
WEX
$5.94B
– –
-40
Closed -$105K
WFC icon
6223
Wells Fargo
WFC
$261B
– –
-5,810
Closed -$315K
WGO icon
6224
Winnebago Industries
WGO
$850M
– –
-472
Closed -$9.79K
WIX icon
6225
CALL
WIX.com
WIX
$2.04B
– –
-309
Closed -$4K
247 248
249
250 251

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 2015 Portfolio in Review

As of Q4 2015, Simplex Trading held 7,008 positions worth $1.28B, down 6.4% from $1.36B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

Simplex Trading's Q4 2015 filing shows 1,417 new, 1,993 increased, 1,803 reduced and 1,598 closed positions. Its largest new stake was Chipotle Mexican Grill: 1,548,150 shares worth $14.9M. The largest sale was iShares Russell 2000 ETF, an estimated $27.5M.

By sector, the portfolio is most concentrated in Consumer Discretionary at 9.5% of assets, up from 4.6% a quarter earlier, followed by Healthcare and Technology.

  • Simplex Trading's largest Q4 2015 buy was Chipotle Mexican Grill: 1,548,150 shares worth $14.9M.
  • Simplex Trading added most to Apple in Q4 2015, an estimated $34.8M increase.
  • Simplex Trading's biggest Q4 2015 reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, cutting an estimated $13.8M.
  • Simplex Trading fully exited iShares Russell 2000 ETF in Q4 2015, selling an estimated $27.5M.
  • Simplex Trading's ten largest holdings make up 19% of its $1.28B portfolio in Q4 2015.
  • Simplex Trading opened 1,417 new positions and closed 1,598 in Q4 2015.
  • Simplex Trading's portfolio value fell 6.4% quarter-over-quarter to $1.28B.

Based on Simplex Trading's 13F filing for Q4 2015, filed 20 Jan 2016.