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
+0.54%
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
$1.19B
AUM Growth
+$333M
Cap. Flow
+$279M
Cap. Flow %
23.35%
Top 10 Hldgs %
20.47%
Holding
6,639
New
1,607
Increased
1,829
Reduced
1,589
Closed
1,438

Top Buys

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$54.6M
2
AAPL icon
Apple
AAPL
+$29.1M
3
META icon
Meta Platforms (Facebook)
META
+$15.7M
4
IBM icon
IBM
IBM
+$13.8M
5
BIDU icon
Baidu
BIDU
+$10.6M

Top Sells

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$10.1M
2
MCD icon
McDonald's
MCD
+$8.46M
3
RL icon
Ralph Lauren
RL
+$5.36M
4
INTC icon
Intel
INTC
+$5.04M
5
WBA
Walgreens Boots Alliance
WBA
+$4.76M

Sector Composition

Rank Sector Weight
1 Communication Services 14.27%
2 Technology 10.3%
3 Healthcare 7.76%
4 Consumer Discretionary 6.32%
5 Financials 5.18%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
RLI icon
5751
RLI Corp
RLI
$5.62B
– –
-1,994
Closed -$52K
RLJ icon
5752
RLJ Lodging Trust
RLJ
$1.83B
– –
-137
Closed -$4K
RM icon
5753
Regional Management Corp
RM
$379M
– –
-12,907
Closed -$190K
RM icon
5754
PUT
Regional Management Corp
RM
$379M
– –
-36
Closed -$1K
ROCK icon
5755
CALL
Gibraltar Industries
ROCK
$1.32B
– –
-10
Closed -$13K
ROK icon
5756
Rockwell Automation
ROK
$51.3B
– –
-5,001
Closed -$602K
RPM icon
5757
RPM International
RPM
$13.4B
– –
-928
Closed -$45.7K
RPM icon
5758
PUT
RPM International
RPM
$13.4B
– –
-11
Closed -$2K
RRX icon
5759
CALL
Regal Rexnord
RRX
$14.2B
– –
-6
Closed -$1K
RS icon
5760
PUT
Reliance Steel & Aluminium
RS
$20.2B
– –
-6
Closed -$1K
RWM icon
5761
ProShares Short Russell2000
RWM
$122M
– –
-9
Closed –
RWR icon
5762
State Street SPDR Dow Jones REIT ETF
RWR
$1.89B
– –
-548
Closed -$51K
SA
5763
PUT
Seabridge Gold
SA
$2.8B
– –
-51
Closed -$8K
SAFT icon
5764
Safety Insurance
SAFT
$1.07B
– –
-106
Closed -$6K
SAFE
5765
CALL
Safehold
SAFE
$1.15B
– –
-5
Closed -$12K
SAM icon
5766
CALL
Boston Beer
SAM
$1.82B
– –
-34
Closed -$19K
SAM icon
5767
Boston Beer
SAM
$1.82B
– –
-4,762
Closed -$1.22M
SANM icon
5768
Sanmina
SANM
$11.7B
– –
-359
Closed -$7.84K
SANW
5769
DELISTED
S&W Seed Co
SANW
– –
-18
Closed -$1.61K
ECHO
5770
EchoStar
ECHO
$26.5B
– –
-2
Closed –
SBAC icon
5771
SBA Communications
SBAC
$18.5B
– –
-626
Closed -$73.5K
SBGI icon
5772
CALL
Sinclair Inc
SBGI
$965M
– –
-24
Closed -$3K
SBRA icon
5773
Sabra Healthcare REIT
SBRA
$5.56B
$0 ﹤0.01%
1
-285
-100% -$8.09K
SBS icon
5774
Sabesp
SBS
$20.1B
– –
-8,250
Closed -$9.29K
SBSI icon
5775
Southside Bancshares
SBSI
$1.01B
– –
-1,497
Closed -$38K
229 230
231
232 233

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 Q2 2015 Portfolio in Review

As of Q2 2015, Simplex Trading held 6,639 positions worth $1.19B, up 39% from $860M the previous quarter. Its ten largest holdings account for 20% of the portfolio.

Simplex Trading deployed $279M of net new capital in Q2 2015, opening 1,607 new positions and adding to 1,829 existing holdings. Its largest new stake was IBM: 85,948 shares worth $13.4M.

By sector, the portfolio is most concentrated in Communication Services at 14% of assets, up from 7.8% a quarter earlier, followed by Technology and Healthcare.

On the sell side, the largest reduction was Intel, an estimated $5.04M trimmed.

  • Simplex Trading's largest Q2 2015 buy was IBM: 85,948 shares worth $13.4M.
  • Simplex Trading added most to Alphabet (Google) Class C in Q2 2015, an estimated $54.6M increase.
  • Simplex Trading's biggest Q2 2015 reduction was Intel, cutting an estimated $5.04M.
  • Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2015, selling an estimated $10.1M.
  • Simplex Trading's ten largest holdings make up 20% of its $1.19B portfolio in Q2 2015.
  • Simplex Trading opened 1,607 new positions and closed 1,438 in Q2 2015.
  • Simplex Trading's portfolio value rose 39% quarter-over-quarter to $1.19B.

Based on Simplex Trading's 13F filing for Q2 2015, filed 8 Jul 2015.