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Simplex Trading

Simplex Trading Portfolio holdings

AUM $171B
1-Year Est. Return 85%
 

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
-17.92%
1 Year Est. Return
+85%
3 Year Est. Return
+183.25%
5 Year Est. Return
+145.21%
10 Year Est. Return
+1,056.84%
AUM
$94.1B
AUM Growth
-$15.3B
Cap. Flow
+$638M
Cap. Flow %
0.68%
Top 10 Hldgs %
40.12%
Holding
11,810
New
1,404
Increased
4,026
Reduced
4,284
Closed
1,790

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$286M
2
VOO icon
Vanguard S&P 500 ETF
VOO
+$82.3M
3
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$72.6M
4
GOOG icon
Alphabet (Google) Class C
GOOG
+$64.2M
5
INTC icon
Intel
INTC
+$52.9M

Top Sells

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$51.5M
2
SLV icon
iShares Silver Trust
SLV
+$41.8M
3
F icon
Ford
F
+$26.3M
4
UAL icon
United Airlines
UAL
+$22.7M
5
XOM icon
ExxonMobil
XOM
+$22.3M

Sector Composition

Rank Sector Weight
1 Miscellaneous 97.48%
2 Technology 0.84%
3 Consumer Discretionary 0.32%
4 Communication Services 0.32%
5 Financials 0.28%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
VTEB icon
11201
Vanguard Tax-Exempt Bond Index Fund
VTEB
$45.8B
– –
-1,195
Closed -$61K
VTEX icon
11202
VTEX
VTEX
$597M
– –
-900
Closed -$4.34K
VTEX icon
11203
PUT
VTEX
VTEX
$597M
– –
-1,600
Closed -$9K
VTI icon
11204
Vanguard Morningstar Total Stock Market ETF
VTI
$693B
– –
-83,580
Closed -$19M
VTOL icon
11205
Bristow Group
VTOL
$1.28B
$0 ﹤0.01%
12
– –
VTSI icon
11206
VirTra
VTSI
$35M
– –
-329
Closed -$1.68K
VTWO icon
11207
Vanguard Russell 2000 ETF
VTWO
$17.4B
– –
-293
Closed -$24K
VIVO
11208
PUT
VivoPower PLC
VIVO
$124M
– –
-510
Closed -$8K
VVX icon
11209
CALL
V2X
VVX
$2.33B
– –
-100
Closed -$3K
VVX icon
11210
PUT
V2X
VVX
$2.33B
– –
-2,400
Closed -$86K
VXF icon
11211
Vanguard Extended Market ETF
VXF
$31.6B
– –
-1,391
Closed -$230K
VXUS icon
11212
Vanguard Total International Stock ETF
VXUS
$167B
– –
-1,675
Closed -$92.9K
VXX icon
11213
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$128M
– –
-75
Closed -$29.6K
YARW
11214
Yarrow Bioscience
YARW
$80.7M
– –
0
– –
WDC icon
11215
Western Digital
WDC
$169B
– –
-268,573
Closed -$10.8M
WEC icon
11216
WEC Energy
WEC
$34.5B
– –
-3,227
Closed -$327K
WELL icon
11217
Welltower
WELL
$170B
– –
-20,701
Closed -$1.84M
WEX icon
11218
WEX
WEX
$6.61B
– –
-2,107
Closed -$345K
WEX icon
11219
PUT
WEX
WEX
$6.61B
– –
-200
Closed -$35K
WFH
11220
DELISTED
Direxion Work From Home ETF
WFH
– –
-475
Closed -$31K
WGS icon
11221
PUT
GeneDx Holdings
WGS
$2.56B
– –
-215
Closed -$21K
WHF icon
11222
WhiteHorse Finance
WHF
$152M
– –
-273
Closed -$3.87K
WIMI
11223
WiMi Hologram Cloud
WIMI
$22.2M
– –
-1,733
Closed -$36.1K
WKEY
11224
WISeKey
WKEY
$77.3M
– –
-312
Closed -$2.63K
WKSP icon
11225
PUT
Worksport
WKSP
$8.57M
– –
-60
Closed -$1K
447 448
449
450 451

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Simplex Trading's Q2 2022 Portfolio in Review

As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.

Simplex Trading's Q2 2022 filing shows 1,404 new, 4,026 increased, 4,284 reduced and 1,790 closed positions. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $51.5M.

By sector, the portfolio is most concentrated in Miscellaneous at 97% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.

  • Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
  • Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
  • Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
  • Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
  • Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
  • Simplex Trading opened 1,404 new positions and closed 1,790 in Q2 2022.
  • Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.

Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.