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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
+33.36%
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
$62.7B
AUM Growth
+$5.97B
Cap. Flow
-$480M
Cap. Flow %
-0.77%
Top 10 Hldgs %
44.28%
Holding
8,917
New
1,290
Increased
3,427
Reduced
2,723
Closed
1,278

Top Buys

Rank Stock Value
1
QQQ icon
Invesco QQQ Trust
QQQ
+$77.3M
2
GLD icon
SPDR Gold Trust
GLD
+$73.2M
3
EFA icon
iShares MSCI EAFE ETF
EFA
+$38.5M
4
NFLX icon
Netflix
NFLX
+$38.4M
5
NVDA icon
NVIDIA
NVDA
+$36.3M

Sector Composition

Rank Sector Weight
1 Technology 0.49%
2 Consumer Discretionary 0.47%
3 Communication Services 0.34%
4 Healthcare 0.26%
5 Financials 0.23%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
TRV icon
701
PUT
Travelers Companies
TRV
$78.5B
$6.55M 0.01%
574
+3
+0.5% +$316
QRVO icon
702
PUT
Qorvo
QRVO
$7.65B
$6.54M 0.01%
592
-194
-25% -$19.2K
USB.PRH icon
703
PUT
US Bancorp Series B Preferred Stock
USB.PRH
$744M
$6.54M 0.01%
1,776
+69
+4% +$1.36K
XOM icon
704
ExxonMobil
XOM
$650B
$6.52M 0.01%
145,870
+111,121
+320% +$4.98M
VMW
705
PUT
DELISTED
VMware, Inc
VMW
$6.52M 0.01%
421
-628
-60% -$86.3K
BMRN icon
706
CALL
BioMarin Pharmaceuticals
BMRN
$11.4B
$6.51M 0.01%
528
+37
+8% +$3.68K
SEDG icon
707
CALL
SolarEdge
SEDG
$2.75B
$6.51M 0.01%
469
+80
+21% +$9.78K
WKHS icon
708
CALL
Workhorse Group
WKHS
$30.1M
$6.48M 0.01%
+1
New +$10.8K
SYK icon
709
CALL
Stryker
SYK
$122B
$6.45M 0.01%
358
+28
+8% +$5.17K
NUE icon
710
PUT
Nucor
NUE
$54.9B
$6.43M 0.01%
1,553
-41
-3% -$1.66K
BNY
711
CALL
Bank of New York Mellon
BNY
$109B
$6.37M 0.01%
1,647
+803
+95% +$29.4K
CAR icon
712
CALL
Avis
CAR
$5.62B
$6.36M 0.01%
2,779
+1,712
+160% +$31.4K
DBEM icon
713
PUT
Xtrackers MSCI Emerging Markets Hedged Equity ETF
DBEM
$107M
$6.35M 0.01%
2,138
-1,279
-37% -$26.8K
VIG icon
714
PUT
Vanguard Dividend Appreciation ETF
VIG
$110B
$6.35M 0.01%
542
+409
+308% +$46.6K
WING icon
715
PUT
Wingstop
WING
$3.67B
$6.35M 0.01%
457
+413
+939% +$48.1K
THO icon
716
CALL
Thor Industries
THO
$3.9B
$6.31M 0.01%
592
+393
+197% +$30.7K
AON icon
717
CALL
Aon
AON
$76B
$6.3M 0.01%
327
+103
+46% +$19.2K
AEM icon
718
PUT
Agnico Eagle Mines
AEM
$72.3B
$6.28M 0.01%
980
-88
-8% -$5.21K
TW icon
719
PUT
Tradeweb Markets
TW
$21.3B
$6.27M 0.01%
1,079
+1,070
+11,889% +$61.6K
BDX icon
720
CALL
Becton Dickinson
BDX
$42.1B
$6.27M 0.01%
269
-362
-57% -$87.2K
EXAS
721
CALL
DELISTED
Exact Sciences
EXAS
$6.27M 0.01%
721
-874
-55% -$69.8K
NTES icon
722
CALL
NetEase
NTES
$76.9B
$6.27M 0.01%
730
+230
+46% +$17.3K
AVGO icon
723
Broadcom
AVGO
$1.87T
$6.26M 0.01%
198,420
-675,390
-77% -$18.9M
TFC icon
724
CALL
Truist Financial
TFC
$62.5B
$6.24M 0.01%
1,662
+614
+59% +$22.1K
MSI icon
725
CALL
Motorola Solutions
MSI
$67.6B
$6.24M 0.01%
445
+322
+262% +$45.6K

Similar funds

Simplex Trading's Q2 2020 Portfolio in Review

As of Q2 2020, Simplex Trading held 8,917 positions worth $62.7B, up 11% from $56.7B the previous quarter. Its ten largest holdings account for 44% of the portfolio.

Simplex Trading's Q2 2020 filing shows 1,290 new, 3,427 increased, 2,723 reduced and 1,278 closed positions. Its largest new stake was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M. The largest sale was Apple, an estimated $55.9M.

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

  • Simplex Trading's largest Q2 2020 buy was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M.
  • Simplex Trading added most to Invesco QQQ Trust in Q2 2020, an estimated $77.3M increase.
  • Simplex Trading's biggest Q2 2020 reduction was Apple, cutting an estimated $55.9M.
  • Simplex Trading fully exited Adobe in Q2 2020, selling an estimated $22M.
  • Simplex Trading's ten largest holdings make up 44% of its $62.7B portfolio in Q2 2020.
  • Simplex Trading opened 1,290 new positions and closed 1,278 in Q2 2020.
  • Simplex Trading's portfolio value rose 11% quarter-over-quarter to $62.7B.

Based on Simplex Trading's 13F filing for Q2 2020, filed 13 Jul 2020.