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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

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$55.9M
2
VXX icon
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
+$28.3M
3
DIA icon
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
+$23.1M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$23.1M
5
ADBE icon
Adobe
ADBE
+$22M

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
WST icon
8476
PUT
West Pharmaceutical
WST
$25.3B
– –
-1
Closed -$15K
WT icon
8477
WisdomTree
WT
$3.05B
– –
-24,159
Closed -$73.4K
WTW icon
8478
Willis Towers Watson
WTW
$27.1B
– –
-3,702
Closed -$709K
WTW icon
8479
PUT
Willis Towers Watson
WTW
$27.1B
– –
-1
Closed -$16K
WWD icon
8480
PUT
Woodward
WWD
$24.1B
– –
-1
Closed -$5K
WWW icon
8481
Wolverine World Wide
WWW
$1.61B
– –
-959
Closed -$19.5K
WY icon
8482
Weyerhaeuser
WY
$17.2B
– –
-9,892
Closed -$200K
XLI icon
8483
State Street Industrial Select Sector SPDR ETF
XLI
$33.2B
– –
-194,087
Closed -$11.5M
XLP icon
8484
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.2B
– –
-40,191
Closed -$2.19M
XP icon
8485
CALL
XP
XP
$8.94B
– –
-185
Closed -$356K
XP icon
8486
XP
XP
$8.94B
$0 ﹤0.01%
9,217
-3,255
-26% -$99.9K
XP icon
8487
PUT
XP
XP
$8.94B
– –
-237
Closed -$457K
XPRO icon
8488
PUT
Expro Ltd
XPRO
$1.79B
– –
-4
Closed -$6K
XRAY icon
8489
Dentsply Sirona
XRAY
$2.66B
– –
-15,762
Closed -$667K
XYLD icon
8490
PUT
Global X S&P 500 Covered Call ETF
XYLD
$3.21B
– –
-1
Closed -$2K
YANG icon
8491
Direxion Daily FTSE China Bear 3X ETF
YANG
$87.6M
– –
-773
Closed -$700K
YETI icon
8492
Yeti Holdings
YETI
$3.92B
– –
-41,763
Closed -$1.25M
YPF icon
8493
YPF
YPF
$20.6B
– –
-400
Closed -$1.87K
YRD
8494
Yiren Digital
YRD
$109M
– –
-3,667
Closed -$14.6K
YUM icon
8495
CALL
Yum! Brands
YUM
$40.7B
– –
-513
Closed -$3.52M
YUM icon
8496
Yum! Brands
YUM
$40.7B
$0 ﹤0.01%
20,475
-11,781
-37% -$1.01M
YUM icon
8497
PUT
Yum! Brands
YUM
$40.7B
– –
-1,698
Closed -$11.6M
ZBH icon
8498
Zimmer Biomet
ZBH
$17.2B
– –
-3,875
Closed -$447K
ZD icon
8499
Ziff Davis
ZD
$1.92B
– –
-3,401
Closed -$222K
ZEPP
8500
Zepp Health
ZEPP
$76M
– –
-477
Closed -$22K
338 339
340
341 342

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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.