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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

Top Buys

Rank Stock Value
1
LNKD
LinkedIn Corporation
LNKD
+$21.4M
2
GLD icon
SPDR Gold Trust
GLD
+$17.3M
3
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
+$15M
4
BIIB icon
Biogen
BIIB
+$14.9M
5
V icon
Visa
V
+$14.1M

Top Sells

Rank Stock Value
1
AVGO icon
Broadcom
AVGO
+$36.7M
2
GOOG icon
Alphabet (Google) Class C
GOOG
+$20.1M
3
EEM icon
iShares MSCI Emerging Markets ETF
EEM
+$15.8M
4
C icon
Citigroup
C
+$14.7M
5
MDY icon
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
+$13.1M

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
HELE icon
4926
CALL
Helen of Troy
HELE
$652M
$2K ﹤0.01%
+19
New +$1.92K
HHH icon
4927
CALL
Howard Hughes
HHH
$4B
$2K ﹤0.01%
+14
New +$1.44K
HNI icon
4928
PUT
HNI Corp
HNI
$3.08B
$2K ﹤0.01%
+25
New +$1.1K
HOFT icon
4929
CALL
Hooker Furnishings Corp
HOFT
$148M
$2K ﹤0.01%
+67
New +$1.66K
HST icon
4930
PUT
Host Hotels & Resorts
HST
$17.5B
$2K ﹤0.01%
+30
New +$472
HTBK
4931
PUT
DELISTED
Heritage Commerce
HTBK
$2K ﹤0.01%
+51
New +$532
HTHT icon
4932
CALL
Huazhu Hotels Group
HTHT
$13.3B
$2K ﹤0.01%
8
-104
-93% -$916
HWC icon
4933
CALL
Hancock Whitney
HWC
$6.2B
$2K ﹤0.01%
8
– –
IBCP icon
4934
PUT
Independent Bank Corp
IBCP
$800M
$2K ﹤0.01%
21
-22
-51% -$325
IEMG icon
4935
CALL
iShares Core MSCI Emerging Markets ETF
IEMG
$145B
$2K ﹤0.01%
+12
New +$492
ING icon
4936
CALL
ING
ING
$93.5B
$2K ﹤0.01%
+346
New +$4.1K
INN
4937
Summit Hotel Properties
INN
$764M
$2K ﹤0.01%
+177
New +$2.11K
INSM icon
4938
CALL
Insmed
INSM
$22.5B
$2K ﹤0.01%
89
-70
-44% -$817
IYG icon
4939
iShares US Financial Services ETF
IYG
$2.16B
$2K ﹤0.01%
+87
New +$2.43K
JACK icon
4940
Jack in the Box
JACK
$315M
$2K ﹤0.01%
27
-2,529
-99% -$191K
JACK icon
4941
PUT
Jack in the Box
JACK
$315M
$2K ﹤0.01%
40
-11
-22% -$831
JBL icon
4942
PUT
Jabil
JBL
$30.2B
$2K ﹤0.01%
26
-25
-49% -$455
JEF icon
4943
CALL
Jefferies Financial Group
JEF
$12.7B
$2K ﹤0.01%
28
+11
+65% +$168
JKHY icon
4944
CALL
Jack Henry & Associates
JKHY
$11.5B
$2K ﹤0.01%
9
-23
-72% -$1.92K
OPLN
4945
CALL
Openlane
OPLN
$4.32B
$2K ﹤0.01%
+29
New +$434
KEX icon
4946
Kirby Corp
KEX
$7.13B
$2K ﹤0.01%
+45
New +$2.95K
KNOP icon
4947
PUT
KNOT Offshore Partners
KNOP
$351M
$2K ﹤0.01%
+28
New +$507
LCTX icon
4948
PUT
Lineage Cell Therapeutics
LCTX
$257M
$2K ﹤0.01%
+7
New +$17
LII icon
4949
PUT
Lennox International
LII
$15.3B
$2K ﹤0.01%
19
-19
-50% -$2.61K
LTBR icon
4950
PUT
Lightbridge
LTBR
$256M
– –
0
– –
196 197
198
199 200

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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.