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
+12.69%
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
$73.5B
AUM Growth
+$10.8B
Cap. Flow
-$1.16B
Cap. Flow %
-1.58%
Top 10 Hldgs %
42.78%
Holding
9,056
New
1,403
Increased
3,135
Reduced
3,122
Closed
1,191

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$102M
2
TSM icon
TSMC
TSM
+$27.8M
3
JPM icon
JPMorgan Chase
JPM
+$22.4M
4
BA icon
Boeing
BA
+$19.4M
5
XOM icon
ExxonMobil
XOM
+$14.7M

Top Sells

Rank Stock Value
1
GLD icon
SPDR Gold Trust
GLD
+$95.5M
2
QQQ icon
Invesco QQQ Trust
QQQ
+$79.6M
3
TSLA icon
Tesla
TSLA
+$75.3M
4
NVDA icon
NVIDIA
NVDA
+$51.6M
5
EFA icon
iShares MSCI EAFE ETF
EFA
+$40.5M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 0.53%
2 Technology 0.4%
3 Healthcare 0.22%
4 Financials 0.21%
5 Communication Services 0.18%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
QLYS icon
8351
CALL
Qualys
QLYS
$4.75B
– –
-95
Closed -$988K
QLYS icon
8352
Qualys
QLYS
$4.75B
$0 ﹤0.01%
+604
New +$64.6K
QLYS icon
8353
PUT
Qualys
QLYS
$4.75B
– –
-62
Closed -$644K
QMCO icon
8354
CALL
Quantum Corp
QMCO
$461M
– –
-1
Closed -$6K
QTWO icon
8355
PUT
Q2 Holdings
QTWO
$3.37B
– –
-41
Closed -$351K
QUAL icon
8356
iShares MSCI USA Quality Factor ETF
QUAL
$45.6B
$0 ﹤0.01%
1
– –
QURE icon
8357
uniQure
QURE
$2.72B
– –
-23,641
Closed -$969K
RAIL icon
8358
FreightCar America
RAIL
$268M
– –
-10,286
Closed -$18.2K
RAMP icon
8359
LiveRamp
RAMP
$2.29B
– –
-2,982
Closed -$149K
RARE icon
8360
Ultragenyx Pharmaceutical
RARE
$2.71B
– –
-23,579
Closed -$1.95M
RBBN icon
8361
Ribbon Communications
RBBN
$354M
$0 ﹤0.01%
72
-3,532
-98% -$14.9K
RBC icon
8362
CALL
RBC Bearings
RBC
$18.9B
– –
-1
Closed -$13K
RCKT icon
8363
CALL
Rocket Pharmaceuticals
RCKT
$354M
– –
-6
Closed -$12K
RCI icon
8364
PUT
Rogers Communications
RCI
$17.9B
– –
-33
Closed -$132K
RDHL
8365
CALL
Redhill Biopharma
RDHL
$4.34M
– –
0
– -$16K
RDHL
8366
Redhill Biopharma
RDHL
$4.34M
$0 ﹤0.01%
15
-19
-56% -$156K
RDHL
8367
PUT
Redhill Biopharma
RDHL
$4.34M
– –
0
– -$10K
RDI icon
8368
PUT
Reading International Class A
RDI
$32.3M
– –
-25
Closed -$10K
RES icon
8369
CALL
RPC Inc
RES
$1.3B
– –
-25
Closed -$7K
REZI icon
8370
Resideo Technologies
REZI
$5.18B
$0 ﹤0.01%
1,153
-29,371
-96% -$372K
RFIL icon
8371
PUT
RF Industries
RFIL
$142M
– –
-10
Closed -$4K
RGR icon
8372
Sturm, Ruger & Co
RGR
$610M
– –
-4,887
Closed -$360K
RICK icon
8373
RCI Hospitality Holdings
RICK
$196M
– –
-4,496
Closed -$71.2K
RIG icon
8374
Transocean
RIG
$5.93B
– –
-330,298
Closed -$540K
RIO icon
8375
Rio Tinto
RIO
$149B
– –
-14,707
Closed -$902K
333 334
335
336 337

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 2020 Portfolio in Review

As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.

Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.

By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.

  • Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
  • Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
  • Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
  • Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
  • Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
  • Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
  • Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.

Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.