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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
PVH icon
2776
CALL
PVH
PVH
$3.98B
$870K ﹤0.01%
15,300
-166,500
-92% -$11.5M
GGB icon
2777
PUT
Gerdau
GGB
$9.74B
$869K ﹤0.01%
255,276
-100,044
-28% -$445K
NOV icon
2778
NOV
NOV
$7.24B
$869K ﹤0.01%
51,418
+14,399
+39% +$271K
SPWH icon
2779
CALL
Sportsman's Warehouse
SPWH
$44.5M
$869K ﹤0.01%
90,700
+17,100
+23% +$169K
DAWN
2780
CALL
DELISTED
Day One Biopharmaceuticals
DAWN
$868K ﹤0.01%
+48,500
New +$501K
EXPD icon
2781
CALL
Expeditors International
EXPD
$22.4B
$867K ﹤0.01%
8,900
+2,700
+44% +$277K
WDFC icon
2782
CALL
WD-40
WDFC
$3.14B
$865K ﹤0.01%
4,300
+3,100
+258% +$579K
CTEV
2783
CALL
Claritev Corp
CTEV
$394M
$864K ﹤0.01%
3,938
+148
+4% +$29.3K
AUY
2784
DELISTED
Yamana Gold, Inc.
AUY
$864K ﹤0.01%
186,006
-600,428
-76% -$3.26M
SPH icon
2785
PUT
Suburban Propane Partners
SPH
$1.24B
$862K ﹤0.01%
56,500
-12,000
-18% -$199K
TENB icon
2786
CALL
Tenable Holdings
TENB
$3.55B
$862K ﹤0.01%
19,000
-13,300
-41% -$685K
LKFT
2787
CALL
Lakefront Biotherapeutics American Depositary Shares
LKFT
$1.83B
$859K ﹤0.01%
15,400
-11,900
-44% -$706K
TREX icon
2788
CALL
Trex
TREX
$4.6B
$859K ﹤0.01%
15,800
+12,900
+445% +$778K
AGIO icon
2789
PUT
Agios Pharmaceuticals
AGIO
$2.16B
$857K ﹤0.01%
38,700
+32,000
+478% +$723K
TIGR
2790
PUT
UP Fintech Holding
TIGR
$861M
$857K ﹤0.01%
182,000
-430,400
-70% -$1.83M
FNV icon
2791
PUT
Franco-Nevada
FNV
$40.9B
$855K ﹤0.01%
6,500
-8,600
-57% -$1.27M
IOT icon
2792
CALL
Samsara
IOT
$22B
$854K ﹤0.01%
76,500
+69,400
+977% +$837K
LBTYK icon
2793
CALL
Liberty Global Class C
LBTYK
$3.36B
$853K ﹤0.01%
40,400
+13,800
+52% +$336K
VRN
2794
CALL
DELISTED
Veren
VRN
$853K ﹤0.01%
119,900
+94,000
+363% +$737K
BPT
2795
DELISTED
BP Prudhoe Bay Royalty Trust
BPT
$851K ﹤0.01%
41,576
-33,367
-45% -$598K
VVV icon
2796
Valvoline
VVV
$5.14B
$850K ﹤0.01%
29,512
+6,911
+31% +$212K
EFC
2797
CALL
Ellington Financial
EFC
$1.7B
$849K ﹤0.01%
57,900
+17,600
+44% +$276K
BLTS
2798
CALL
DELISTED
Bright Lights Acquisition Corp. Class A Common Stock
BLTS
$849K ﹤0.01%
86,300
+47,100
+120% +$464K
SHLX
2799
CALL
DELISTED
Shell Midstream Partners, L.P.
SHLX
$849K ﹤0.01%
60,400
+4,300
+8% +$60.6K
HRB icon
2800
H&R Block
HRB
$5.66B
$848K ﹤0.01%
24,015
+15,123
+170% +$467K

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.