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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

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
RSKD icon
3951
PUT
Riskified
RSKD
$719M
$335K ﹤0.01%
75,600
-30,500
-29% -$158K
TMV icon
3952
Direxion Daily 20+ Year Treasury Bear 3X ETF
TMV
$182M
$335K ﹤0.01%
+13,228
New +$326K
BREZ
3953
DELISTED
Breeze Holdings Acquisition Corp. Common Stock
BREZ
$335K ﹤0.01%
32,688
+20,949
+178% +$215K
ASND icon
3954
PUT
Ascendis Pharma A/S
ASND
$16.5B
$334K ﹤0.01%
3,600
-5,600
-61% -$528K
BXC icon
3955
CALL
BlueLinx
BXC
$430M
$334K ﹤0.01%
5,000
+3,400
+213% +$255K
DGII icon
3956
CALL
Digi International
DGII
$2.47B
$334K ﹤0.01%
+13,800
New +$299K
FUBO icon
3957
FuboTV Inc
FUBO
$260M
$334K ﹤0.01%
11,281
+10,779
+2,147% +$502K
IMO icon
3958
CALL
Imperial Oil
IMO
$62.3B
$334K ﹤0.01%
7,100
+4,600
+184% +$235K
OBDC icon
3959
CALL
Blue Owl Capital
OBDC
$5.35B
$334K ﹤0.01%
27,100
+11,900
+78% +$163K
EQH icon
3960
CALL
Equitable Holdings
EQH
$13.2B
$333K ﹤0.01%
12,800
+8,300
+184% +$241K
HUBG icon
3961
CALL
HUB Group
HUBG
$2.92B
$333K ﹤0.01%
9,400
+5,600
+147% +$196K
EQR icon
3962
PUT
Equity Residential
EQR
$25.8B
$332K ﹤0.01%
4,600
-5,300
-54% -$421K
MSGS icon
3963
CALL
Madison Square Garden
MSGS
$9.59B
$332K ﹤0.01%
2,200
-400
-15% -$64.9K
RSI icon
3964
CALL
Rush Street Interactive
RSI
$3.17B
$332K ﹤0.01%
71,200
+16,100
+29% +$95.8K
TACT icon
3965
PUT
Transact Technologies
TACT
$50.5M
$332K ﹤0.01%
+82,300
New +$455K
EVEX icon
3966
CALL
Eve Holding
EVEX
$777M
$331K ﹤0.01%
+53,500
New +$422K
AGIG
3967
CALL
Abundia Global Impact Group
AGIG
$40.5M
$331K ﹤0.01%
7,230
+5,400
+295% +$234K
HVT icon
3968
Haverty Furniture Companies
HVT
$418M
$331K ﹤0.01%
14,319
+9,368
+189% +$250K
ARCB icon
3969
PUT
ArcBest
ARCB
$3.16B
$330K ﹤0.01%
4,700
+1,500
+47% +$110K
BLDR icon
3970
Builders FirstSource
BLDR
$7.29B
$330K ﹤0.01%
6,154
-2,556
-29% -$157K
HTH icon
3971
PUT
Hilltop Holdings
HTH
$2.26B
$330K ﹤0.01%
+12,400
New +$353K
SPWH icon
3972
PUT
Sportsman's Warehouse
SPWH
$44.9M
$330K ﹤0.01%
34,500
-3,600
-9% -$35.5K
CERE
3973
DELISTED
Cerevel Therapeutics Holdings, Inc. Common Stock
CERE
$330K ﹤0.01%
+12,491
New +$355K
DDS icon
3974
Dillards
DDS
$9.2B
$329K ﹤0.01%
+1,496
New +$432K
MAG
3975
PUT
DELISTED
MAG Silver
MAG
$329K ﹤0.01%
27,100
-4,500
-14% -$65.9K

Similar funds

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.