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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
ACCO icon
5626
Acco Brands
ACCO
$389M
$94K ﹤0.01%
14,548
-357
-2% -$2.6K
FLS icon
5627
CALL
Flowserve
FLS
$9.71B
$94K ﹤0.01%
3,300
-2,500
-43% -$79.6K
GBCI icon
5628
CALL
Glacier Bancorp
GBCI
$6.42B
$94K ﹤0.01%
2,000
+300
+18% +$14.1K
INO icon
5629
Inovio Pharmaceuticals
INO
$55.7M
$94K ﹤0.01%
4,557
+1,634
+56% +$46K
KIM icon
5630
PUT
Kimco Realty
KIM
$17.2B
$94K ﹤0.01%
4,800
+4,300
+860% +$98.8K
KREF
5631
PUT
KKR Real Estate Finance Trust
KREF
$448M
$94K ﹤0.01%
5,400
-300
-5% -$5.78K
LCUT icon
5632
Lifetime Brands
LCUT
$191M
$94K ﹤0.01%
+8,596
New +$102K
MC icon
5633
CALL
Moelis & Co
MC
$4.97B
$94K ﹤0.01%
2,400
+1,300
+118% +$56.7K
MCS icon
5634
CALL
Marcus Corp
MCS
$897M
$94K ﹤0.01%
6,400
+300
+5% +$4.61K
NEO icon
5635
CALL
NeoGenomics
NEO
$1.96B
$94K ﹤0.01%
11,600
-46,800
-80% -$447K
OSCR icon
5636
Oscar Health
OSCR
$9.41B
$94K ﹤0.01%
+22,163
New +$141K
PANL icon
5637
PUT
Pangaea Logistics
PANL
$498M
$94K ﹤0.01%
18,700
+1,400
+8% +$7.66K
RES icon
5638
RPC Inc
RES
$1.24B
$94K ﹤0.01%
13,731
+8,314
+153% +$79.3K
TALK icon
5639
CALL
Talkspace
TALK
$874M
$94K ﹤0.01%
55,600
+3,300
+6% +$4.96K
TMPO
5640
PUT
DELISTED
Tempo Automation Holdings, Inc. Common Stock
TMPO
$94K ﹤0.01%
9,300
+6,900
+288% +$69.4K
GCP
5641
DELISTED
GCP Applied Technologies Inc.
GCP
$94K ﹤0.01%
3,018
+733
+32% +$22.8K
ALT icon
5642
CALL
Altimmune
ALT
$552M
$93K ﹤0.01%
8,000
-12,000
-60% -$74K
CMCO icon
5643
PUT
Columbus McKinnon
CMCO
$553M
$93K ﹤0.01%
3,300
+2,500
+313% +$86K
CPS icon
5644
PUT
Cooper-Standard Automotive
CPS
$523M
$93K ﹤0.01%
18,700
+9,500
+103% +$55.4K
ESNT icon
5645
CALL
Essent Group
ESNT
$6.08B
$93K ﹤0.01%
2,400
+400
+20% +$16.3K
KYNB
5646
CALL
Kyntra Bio
KYNB
$27.2M
$93K ﹤0.01%
356
-712
-67% -$182K
GMS
5647
PUT
DELISTED
GMS Inc
GMS
$93K ﹤0.01%
2,100
+100
+5% +$4.75K
ITRN icon
5648
Ituran Location and Control
ITRN
$1.09B
$93K ﹤0.01%
+3,802
New +$89.2K
LSAK icon
5649
CALL
Lesaka Technologies
LSAK
$396M
$93K ﹤0.01%
18,100
+14,200
+364% +$70.6K
ORMP icon
5650
Oramed Pharmaceuticals
ORMP
$167M
$93K ﹤0.01%
+20,363
New +$109K

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.