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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
+5.12%
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
$1.5B
AUM Growth
+$242M
Cap. Flow
+$178M
Cap. Flow %
11.93%
Top 10 Hldgs %
18.61%
Holding
7,153
New
1,586
Increased
2,321
Reduced
1,709
Closed
1,363

Sector Composition

Rank Sector Weight
1 Communication Services 6.61%
2 Healthcare 6.55%
3 Technology 6.45%
4 Consumer Discretionary 4.54%
5 Financials 4.51%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
QRVO icon
1926
PUT
Qorvo
QRVO
$7.63B
$57K ﹤0.01%
93
-316
-77% -$15.8K
RARE icon
1927
Ultragenyx Pharmaceutical
RARE
$2.65B
$57K ﹤0.01%
+1,167
New +$75.5K
SILJ icon
1928
Amplify Junior Silver Miners ETF
SILJ
$3.27B
$57K ﹤0.01%
+3,906
New +$48.1K
TNXP icon
1929
PUT
Tonix Pharmaceuticals
TNXP
$157M
0
XBI icon
1930
State Street SPDR S&P Biotech ETF
XBI
$10.1B
$57K ﹤0.01%
1,054
-8,319
-89% -$456K
HOLI
1931
DELISTED
Hollsys Automation Technologies INTERNATIONAL, LTD. COMMON (British Virgin Island)
HOLI
$57K ﹤0.01%
+3,304
New +$60.6K
SNP
1932
PUT
DELISTED
CHINA PETROLEUM & CHEMICAL CORPORATION ADS (REP 100 ORDINARY H SHARES)
SNP
$57K ﹤0.01%
735
+304
+71% +$20.8K
TPCO
1933
DELISTED
Tribune Publishing Company Common Stock
TPCO
$57K ﹤0.01%
4,152
+4,122
+13,740% +$46.3K
BSFT
1934
CALL
DELISTED
BroadSoft, Inc.
BSFT
$57K ﹤0.01%
126
+21
+20% +$867
TUMI
1935
DELISTED
TUMI HLDGS INC COM
TUMI
$57K ﹤0.01%
2,154
-9,300
-81% -$248K
TAL
1936
PUT
DELISTED
TAL INTERNATIONAL GROUP, INC.
TAL
$57K ﹤0.01%
455
+92
+25% +$1.35K
BBD icon
1937
PUT
Banco Bradesco
BBD
$38.1B
$56K ﹤0.01%
2,862
+978
+52% +$3.6K
BN icon
1938
PUT
Brookfield
BN
$102B
$56K ﹤0.01%
+639
New +$7.64K
CVGW
1939
CALL
DELISTED
Calavo Growers
CVGW
$56K ﹤0.01%
48
+26
+118% +$1.54K
FIVE icon
1940
CALL
Five Below
FIVE
$11.2B
$56K ﹤0.01%
125
-86
-41% -$3.6K
HAIN icon
1941
CALL
Hain Celestial
HAIN
$47.8M
$56K ﹤0.01%
83
+4
+5% +$185
HRI icon
1942
PUT
Herc Holdings
HRI
$5.43B
$56K ﹤0.01%
202
+150
+288% +$4.31K
MNST icon
1943
PUT
Monster Beverage
MNST
$91.4B
$56K ﹤0.01%
1,140
-102
-8% -$2.46K
NVS icon
1944
CALL
Novartis
NVS
$295B
$56K ﹤0.01%
289
-27
-9% -$1.86K
PNC icon
1945
PUT
PNC Financial Services
PNC
$100B
$56K ﹤0.01%
133
-104
-44% -$8.94K
RCL icon
1946
CALL
Royal Caribbean
RCL
$78.7B
$56K ﹤0.01%
245
+58
+31% +$4.44K
RIO icon
1947
CALL
Rio Tinto
RIO
$148B
$56K ﹤0.01%
281
-619
-69% -$18.5K
SSYS icon
1948
CALL
Stratasys
SSYS
$697M
$56K ﹤0.01%
296
+17
+6% +$397
TMO icon
1949
Thermo Fisher Scientific
TMO
$211B
$56K ﹤0.01%
381
-8,181
-96% -$1.21M
TOUR
1950
Tuniu
TOUR
$55.4M
$56K ﹤0.01%
+671
New +$64.6K

Similar funds

Simplex Trading's Q2 2016 Portfolio in Review

As of Q2 2016, Simplex Trading held 7,153 positions worth $1.5B, up 19% from $1.25B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

Simplex Trading deployed $178M of net new capital in Q2 2016, opening 1,586 new positions and adding to 2,321 existing holdings. Its largest new stake was Biogen: 56,467 shares worth $13.7M.

By sector, the portfolio is most concentrated in Communication Services at 6.6% of assets, down from 6.9% a quarter earlier, followed by Healthcare and Technology.

On the sell side, the largest reduction was Broadcom, an estimated $36.7M trimmed.

  • Simplex Trading's largest Q2 2016 buy was Biogen: 56,467 shares worth $13.7M.
  • Simplex Trading added most to LinkedIn Corporation in Q2 2016, an estimated $21.4M increase.
  • Simplex Trading's biggest Q2 2016 reduction was Broadcom, cutting an estimated $36.7M.
  • Simplex Trading fully exited Alphabet (Google) Class C in Q2 2016, selling an estimated $20.1M.
  • Simplex Trading's ten largest holdings make up 19% of its $1.5B portfolio in Q2 2016.
  • Simplex Trading opened 1,586 new positions and closed 1,363 in Q2 2016.
  • Simplex Trading's portfolio value rose 19% quarter-over-quarter to $1.5B.

Based on Simplex Trading's 13F filing for Q2 2016, filed 18 Jul 2016.