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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
-17.92%
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
$94.1B
AUM Growth
-$15.3B
Cap. Flow
+$11.3B
Cap. Flow %
12.02%
Top 10 Hldgs %
40.12%
Holding
11,810
New
1,405
Increased
4,027
Reduced
4,289
Closed
1,792

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 Technology 0.84%
2 Communication Services 0.32%
3 Consumer Discretionary 0.32%
4 Financials 0.28%
5 Healthcare 0.2%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
DJP icon
2201
iPath Bloomberg Commodity Index Total Return ETN due 12 June 2036
DJP
$819M
$1.45M ﹤0.01%
41,585
-23,168
-36% -$896K
AUY
2202
CALL
DELISTED
Yamana Gold, Inc.
AUY
$1.45M ﹤0.01%
311,100
-18,300
-6% -$99.2K
FOUR icon
2203
PUT
Shift4
FOUR
$3.84B
$1.44M ﹤0.01%
43,700
-10,900
-20% -$515K
RVLV icon
2204
PUT
Revolve Group
RVLV
$1.79B
$1.44M ﹤0.01%
55,700
-20,800
-27% -$768K
HZNP
2205
PUT
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
$1.44M ﹤0.01%
18,100
-1,100
-6% -$104K
RJF icon
2206
Raymond James Financial
RJF
$32.5B
$1.44M ﹤0.01%
+16,120
New +$1.58M
IDXX icon
2207
PUT
Idexx Laboratories
IDXX
$42.9B
$1.44M ﹤0.01%
4,100
-24,800
-86% -$10.1M
TOST icon
2208
PUT
Toast
TOST
$16.8B
$1.44M ﹤0.01%
111,000
+62,400
+128% +$1.03M
VOOG icon
2209
Vanguard S&P 500 Growth ETF
VOOG
$25.4B
$1.44M ﹤0.01%
+39,606
New +$1.58M
FOX icon
2210
CALL
Fox Class B
FOX
$20.7B
$1.44M ﹤0.01%
45,700
+3,900
+9% +$127K
AMLX icon
2211
CALL
Amylyx Pharmaceuticals
AMLX
$2.05B
$1.43M ﹤0.01%
74,500
+41,400
+125% +$492K
BINI
2212
PUT
DELISTED
Bollinger Innovations
BINI
– –
0
– –
VNET
2213
CALL
VNET Group
VNET
$2.05B
$1.43M ﹤0.01%
237,200
+185,500
+359% +$1.1M
CFLT
2214
PUT
DELISTED
Confluent
CFLT
$1.43M ﹤0.01%
61,600
+39,300
+176% +$1.06M
M icon
2215
Macy's
M
$6.15B
$1.43M ﹤0.01%
78,134
+14,265
+22% +$323K
PRTA icon
2216
CALL
Prothena Corp
PRTA
$458M
$1.43M ﹤0.01%
52,600
+38,700
+278% +$1.13M
SST icon
2217
CALL
System1
SST
$15M
$1.43M ﹤0.01%
20,490
+11,190
+120% +$1.41M
SRE icon
2218
PUT
Sempra
SRE
$60.8B
$1.43M ﹤0.01%
19,000
-43,800
-70% -$3.52M
BHVN
2219
CALL
DELISTED
Biohaven Pharmaceutical Holding Company Ltd.
BHVN
$1.43M ﹤0.01%
9,800
+5,000
+104% +$639K
WSC icon
2220
CALL
WillScot Mobile Mini Holdings
WSC
$4.8B
$1.43M ﹤0.01%
44,000
+5,800
+15% +$205K
MTBL
2221
PUT
DELISTED
Moatable, Inc. American Depositary Share (each representing forty-five (45) Class A Ordinary Shares)
MTBL
$1.43M ﹤0.01%
493,000
-331,000
-40% -$911K
CAL icon
2222
CALL
Caleres
CAL
$396M
$1.42M ﹤0.01%
54,300
+1,500
+3% +$37.1K
PTON icon
2223
Peloton Interactive
PTON
$2.63B
$1.42M ﹤0.01%
155,161
-16,120
-9% -$259K
MAXR
2224
CALL
DELISTED
Maxar Technologies Inc. Common Stock
MAXR
$1.42M ﹤0.01%
54,600
+14,800
+37% +$460K
DVAX
2225
DELISTED
Dynavax Technologies
DVAX
$1.42M ﹤0.01%
113,058
-48,573
-30% -$516K
87 88
89
90 91

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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 deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.

By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.

On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.

  • 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 1,405 new positions and closed 1,792 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.