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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
+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
VAC icon
8576
Marriott Vacations Worldwide
VAC
$3.33B
– –
-9,084
Closed -$825K
VATE icon
8577
INNOVATE Corp
VATE
$110M
– –
-1,277
Closed -$42K
VATE icon
8578
PUT
INNOVATE Corp
VATE
$110M
– –
-49
Closed -$164K
VBR icon
8579
Vanguard Small-Cap Value ETF
VBR
$37B
– –
-330
Closed -$35K
VCEL icon
8580
Vericel Corp
VCEL
$2.28B
– –
-1,856
Closed -$30.7K
VFF icon
8581
Village Farms International
VFF
$242M
– –
-45,908
Closed -$252K
VGK icon
8582
Vanguard FTSE Europe ETF
VGK
$30.2B
– –
-17,512
Closed -$935K
VGSH icon
8583
PUT
Vanguard Short-Term Treasury ETF
VGSH
$29.3B
– –
-18
Closed -$95K
VIAV icon
8584
Viavi Solutions
VIAV
$10.4B
– –
-6,775
Closed -$88K
VICI icon
8585
VICI Properties
VICI
$29.3B
– –
-4,287
Closed -$96.3K
VICR icon
8586
Vicor
VICR
$9.91B
– –
-3,491
Closed -$278K
VIS icon
8587
Vanguard Industrials ETF
VIS
$8.11B
– –
-1,182
Closed -$153K
VLRS
8588
Controladora Vuela Compania de Aviacion
VLRS
$902M
– –
-759
Closed -$5.04K
VLY icon
8589
Valley National Bancorp
VLY
$8.05B
– –
-7,837
Closed -$58.2K
VNET
8590
CALL
VNET Group
VNET
$2.23B
– –
-114
Closed -$272K
VNET
8591
VNET Group
VNET
$2.23B
$0 ﹤0.01%
9,292
-36,988
-80% -$862K
VNET
8592
PUT
VNET Group
VNET
$2.23B
– –
-120
Closed -$286K
VNRX icon
8593
CALL
VolitionRx Ltd
VNRX
$12.5M
– –
0
– -$1K
VOO icon
8594
Vanguard S&P 500 ETF
VOO
$979B
– –
-13,292
Closed -$4.05M
VOT icon
8595
Vanguard Mid-Cap Growth ETF
VOT
$19.2B
– –
-67
Closed -$11K
VOX icon
8596
Vanguard Communication Services ETF
VOX
$5.7B
– –
-10
Closed –
VPU
8597
Vanguard Utilities ETF
VPU
$8.78B
– –
-368
Closed -$45K
VRA icon
8598
Vera Bradley
VRA
$109M
– –
-16,726
Closed -$89.3K
VRSK icon
8599
Verisk Analytics
VRSK
$25.2B
– –
-1,683
Closed -$308K
VRT icon
8600
PUT
Vertiv
VRT
$116B
– –
-314
Closed -$425K
342 343
344
345 346

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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.