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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
HBIO icon
10376
Harvard Bioscience
HBIO
$36.5M
$0 ﹤0.01%
+24
New +$1.08K
HBIO icon
10377
PUT
Harvard Bioscience
HBIO
$36.5M
– –
-70
Closed -$4K
HCAT icon
10378
Health Catalyst
HCAT
$127M
– –
-3,209
Closed -$54.7K
HCC icon
10379
Warrior Met Coal
HCC
$5.52B
– –
-11,495
Closed -$398K
HCI icon
10380
PUT
HCI Group
HCI
$2.33B
– –
-100
Closed -$6K
HDGE icon
10381
AdvisorShares Ranger Equity Bear ETF
HDGE
$51.5M
– –
-396
Closed -$9K
HEDJ icon
10382
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.81B
– –
-810
Closed -$29K
HEI.A icon
10383
PUT
HEICO Corp Class A
HEI.A
$33.6B
– –
-300
Closed -$46K
HELE icon
10384
PUT
Helen of Troy
HELE
$661M
– –
-300
Closed -$58K
HES
10385
DELISTED
Hess
HES
– –
-922
Closed -$104K
HFFG icon
10386
HF Foods Group
HFFG
$98.4M
– –
-28
Closed -$157
HFFG icon
10387
PUT
HF Foods Group
HFFG
$98.4M
– –
-1,200
Closed -$7K
HFWA icon
10388
Heritage Financial
HFWA
$1.2B
– –
-1,874
Closed -$46K
HI
10389
DELISTED
Hillenbrand
HI
– –
-237
Closed -$9.9K
HII icon
10390
Huntington Ingalls Industries
HII
$11.3B
– –
-842
Closed -$178K
HIPO icon
10391
Hippo Holdings
HIPO
$894M
$0 ﹤0.01%
+36
New +$1.33K
HIPO icon
10392
PUT
Hippo Holdings
HIPO
$894M
– –
-48
Closed -$2K
HLF icon
10393
Herbalife
HLF
$1.3B
– –
-4,290
Closed -$106K
HLIO icon
10394
Helios Technologies
HLIO
$2.36B
– –
-4,148
Closed -$288K
HLIO icon
10395
PUT
Helios Technologies
HLIO
$2.36B
– –
-2,600
Closed -$208K
HLIT icon
10396
Harmonic Inc
HLIT
$1.28B
– –
-16,720
Closed -$151K
HMC icon
10397
Honda
HMC
$42.4B
– –
-14,445
Closed -$369K
MCHB
10398
Mechanics Bancorp
MCHB
$3.5B
– –
-169
Closed -$8K
MCHB
10399
PUT
Mechanics Bancorp
MCHB
$3.5B
– –
-400
Closed -$18K
HNI icon
10400
HNI Corp
HNI
$3.58B
– –
-1,734
Closed -$63K
414 415
416
417 418

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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.