We are live on ! Find out more
Simplex Trading

Simplex Trading Portfolio holdings

AUM $171B
1-Year Est. Return 85%
 

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
-0.41%
1 Year Est. Return
+85%
3 Year Est. Return
+183.25%
5 Year Est. Return
+145.21%
10 Year Est. Return
+1,056.84%
AUM
$1.25B
AUM Growth
-$22.5M
Cap. Flow
-$34.7M
Cap. Flow %
-2.76%
Top 10 Hldgs %
17.26%
Holding
7,084
New
1,678
Increased
2,214
Reduced
1,528
Closed
1,503

Top Buys

Rank Stock Value
1
AVGO icon
Broadcom
AVGO
+$33.7M
2
GLD icon
SPDR Gold Trust
GLD
+$17.8M
3
EEM icon
iShares MSCI Emerging Markets ETF
EEM
+$14.3M
4
MDY icon
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
+$11.9M
5
C icon
Citigroup
C
+$8.7M

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$34.2M
2
GMCR
KEURIG GREEN MTN INC
GMCR
+$17.9M
3
CMG icon
Chipotle Mexican Grill
CMG
+$14.7M
4
DIS icon
Walt Disney
DIS
+$13.3M
5
BKNG icon
Booking.com
BKNG
+$12.1M

Sector Composition

Rank Sector Weight
1 Miscellaneous 60.01%
2 Technology 7.86%
3 Communication Services 7%
4 Consumer Discretionary 5.21%
5 Healthcare 4.94%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
RITM icon
6126
PUT
Rithm Capital
RITM
$5.63B
– –
-31
Closed -$5K
RMBS icon
6127
Rambus
RMBS
$9.27B
– –
-2,937
Closed -$36.4K
RMBS icon
6128
PUT
Rambus
RMBS
$9.27B
– –
-126
Closed -$25K
RMD icon
6129
PUT
ResMed
RMD
$32.9B
– –
-6
Closed -$5K
ROP icon
6130
Roper Technologies
ROP
$40.3B
– –
-879
Closed -$151K
RPM icon
6131
RPM International
RPM
$13.5B
– –
-53
Closed -$2.19K
RSG icon
6132
Republic Services
RSG
$68.2B
– –
-22,029
Closed -$1,000K
RSP icon
6133
PUT
Invesco S&P 500 Equal Weight ETF
RSP
$100B
– –
-2
Closed -$1K
RUN icon
6134
CALL
Sunrun
RUN
$2.14B
– –
-39
Closed -$19K
RVTY icon
6135
Revvity
RVTY
$14.5B
– –
-659
Closed -$31.5K
RWT
6136
CALL
Redwood Trust
RWT
$567M
– –
-48
Closed -$2K
RYAAY icon
6137
PUT
Ryanair
RYAAY
$28.7B
– –
-178
Closed -$17K
SABR icon
6138
PUT
Sabre
SABR
$860M
– –
-113
Closed -$1K
SAFE
6139
Safehold
SAFE
$1.07B
– –
-145
Closed -$6.67K
SAIA icon
6140
PUT
Saia
SAIA
$9.52B
– –
-5
Closed -$6K
SAM icon
6141
Boston Beer
SAM
$1.74B
– –
-942
Closed -$172K
SANM icon
6142
PUT
Sanmina
SANM
$10.6B
– –
-13
Closed -$1K
FLNA
6143
Filana Therapeutics
FLNA
$39.6M
$0 ﹤0.01%
1
-65
-98% -$841
SBGI icon
6144
Sinclair Inc
SBGI
$999M
– –
-2,006
Closed -$61.6K
SBLK icon
6145
Star Bulk Carriers
SBLK
$3.62B
– –
-420
Closed -$1K
SBLK icon
6146
PUT
Star Bulk Carriers
SBLK
$3.62B
– –
-4
Closed -$13K
SBSW icon
6147
Sibanye-Stillwater
SBSW
$9.05B
– –
-87
Closed -$941
SBUX icon
6148
Starbucks
SBUX
$119B
– –
-4,165
Closed -$243K
SCHE icon
6149
Schwab Emerging Markets Equity ETF
SCHE
$13.2B
– –
-100
Closed -$1K
SCHL icon
6150
Scholastic
SCHL
$673M
– –
-130
Closed -$4.63K
244 245
246
247 248

Similar funds

Creative Planning
Creative Planning Overland Park, Kansas $171B AUM 24.68% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return
California Public Employees Retirement System
California Public Employees Retirement System Sacramento, California $177B AUM 39.86% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

Simplex Trading's Q1 2016 Portfolio in Review

As of Q1 2016, Simplex Trading held 7,084 positions worth $1.25B, down 1.8% from $1.28B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

Simplex Trading's Q1 2016 filing shows 1,678 new, 2,214 increased, 1,528 reduced and 1,503 closed positions. Its largest new stake was Broadcom: 2,493,400 shares worth $38.5M. The largest sale was Apple, an estimated $34.2M.

By sector, the portfolio is most concentrated in Miscellaneous at 60% of assets, up from 52% a quarter earlier, followed by Technology and Communication Services.

  • Simplex Trading's largest Q1 2016 buy was Broadcom: 2,493,400 shares worth $38.5M.
  • Simplex Trading added most to Citigroup in Q1 2016, an estimated $8.7M increase.
  • Simplex Trading's biggest Q1 2016 reduction was Booking.com, cutting an estimated $12.1M.
  • Simplex Trading fully exited Apple in Q1 2016, selling an estimated $34.2M.
  • Simplex Trading's ten largest holdings make up 17% of its $1.25B portfolio in Q1 2016.
  • Simplex Trading opened 1,678 new positions and closed 1,503 in Q1 2016.
  • Simplex Trading's portfolio value fell 1.8% quarter-over-quarter to $1.25B.

Based on Simplex Trading's 13F filing for Q1 2016, filed 14 Apr 2016.