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
-2.07%
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
$35.2B
AUM Growth
-$1.49B
Cap. Flow
-$310M
Cap. Flow %
-0.88%
Top 10 Hldgs %
32.67%
Holding
8,410
New
1,312
Increased
3,129
Reduced
2,596
Closed
1,163

Top Buys

Rank Stock Value
1
BABA icon
Alibaba
BABA
+$50.3M
2
BA icon
Boeing
BA
+$24.3M
3
GLD icon
SPDR Gold Trust
GLD
+$18.3M
4
BIIB icon
Biogen
BIIB
+$15.9M
5
FDX icon
FedEx
FDX
+$15.1M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$60.3M
2
IWM icon
iShares Russell 2000 ETF
IWM
+$36.4M
3
NFLX icon
Netflix
NFLX
+$19M
4
XLI icon
State Street Industrial Select Sector SPDR ETF
XLI
+$17.3M
5
TLT icon
iShares 20+ Year Treasury Bond ETF
TLT
+$14.2M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 0.49%
2 Technology 0.48%
3 Healthcare 0.35%
4 Industrials 0.35%
5 Communication Services 0.21%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BSBR icon
7251
Santander
BSBR
$39.8B
– –
-65
Closed –
BSBR icon
7252
PUT
Santander
BSBR
$39.8B
– –
-16
Closed -$17K
BSRR icon
7253
CALL
Sierra Bancorp
BSRR
$549M
– –
-10
Closed -$2K
SLAI
7254
DELISTED
SOLAI Ltd ADS
SLAI
– –
-49
Closed -$34.6K
BTE icon
7255
CALL
Baytex Energy
BTE
$3.09B
– –
-149
Closed -$22K
BWXT icon
7256
BWX Technologies
BWXT
$16B
– –
-832
Closed -$46.5K
BX icon
7257
Blackstone
BX
$104B
– –
-36,858
Closed -$1.8M
BXMT icon
7258
Blackstone Mortgage Trust
BXMT
$2.82B
– –
-858
Closed -$30.5K
CAAS icon
7259
China Automotive Systems
CAAS
$133M
– –
-2,297
Closed -$4.85K
CACI icon
7260
CACI
CACI
$10.8B
– –
-2,391
Closed -$516K
CADE
7261
CALL
DELISTED
Cadence Bank
CADE
– –
-9
Closed -$26K
CADE
7262
DELISTED
Cadence Bank
CADE
– –
-331
Closed -$9K
CADE
7263
PUT
DELISTED
Cadence Bank
CADE
– –
-5
Closed -$14K
CAG icon
7264
Conagra Brands
CAG
$7.07B
– –
-47,787
Closed -$1.38M
CAKE icon
7265
Cheesecake Factory
CAKE
$4.23B
– –
-384
Closed -$15.8K
CAL icon
7266
Caleres
CAL
$399M
– –
-4,282
Closed -$80.8K
CAMT icon
7267
Camtek
CAMT
$6.88B
– –
-9,021
Closed -$82.5K
CAPL icon
7268
CALL
CrossAmerica Partners
CAPL
$829M
– –
-30
Closed -$48K
CAT icon
7269
Caterpillar
CAT
$409B
– –
-5,873
Closed -$746K
CBSH icon
7270
Commerce Bancshares
CBSH
$8.54B
– –
-235
Closed -$9.8K
CBZ icon
7271
CBIZ
CBZ
$2.29B
– –
-89
Closed -$1K
CCI icon
7272
Crown Castle
CCI
$32.7B
– –
-13,295
Closed -$1.84M
CCJ icon
7273
Cameco
CCJ
$37.9B
– –
-71,299
Closed -$669K
CCOI icon
7274
PUT
Cogent Communications
CCOI
$603M
– –
-21
Closed -$124K
CCO icon
7275
Clear Channel Outdoor Holdings
CCO
$1.23B
– –
-57
Closed -$179
289 290
291
292 293

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 Q3 2019 Portfolio in Review

As of Q3 2019, Simplex Trading held 8,410 positions worth $35.2B, down 4.1% from $36.6B the previous quarter. Its ten largest holdings account for 33% of the portfolio.

Simplex Trading's Q3 2019 filing shows 1,312 new, 3,129 increased, 2,596 reduced and 1,163 closed positions. Its largest new stake was SPDR Gold Trust: 131,281 shares worth $18.2M. The largest sale was Alphabet (Google) Class C, an estimated $60.3M.

By sector, the portfolio is most concentrated in Consumer Discretionary at 0.49% of assets, up from 0.26% a quarter earlier, followed by Technology and Healthcare.

  • Simplex Trading's largest Q3 2019 buy was SPDR Gold Trust: 131,281 shares worth $18.2M.
  • Simplex Trading added most to Alibaba in Q3 2019, an estimated $50.3M increase.
  • Simplex Trading's biggest Q3 2019 reduction was Alphabet (Google) Class C, cutting an estimated $60.3M.
  • Simplex Trading fully exited iShares Russell 2000 ETF in Q3 2019, selling an estimated $36.4M.
  • Simplex Trading's ten largest holdings make up 33% of its $35.2B portfolio in Q3 2019.
  • Simplex Trading opened 1,312 new positions and closed 1,163 in Q3 2019.
  • Simplex Trading's portfolio value fell 4.1% quarter-over-quarter to $35.2B.

Based on Simplex Trading's 13F filing for Q3 2019, filed 15 Oct 2019.