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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
EEQ
6826
CALL
DELISTED
Enbridge Energy Management Llc
EEQ
– –
-21
Closed -$3K
EEQ
6827
DELISTED
Enbridge Energy Management Llc
EEQ
– –
-3,164
Closed -$43K
EEQ
6828
PUT
DELISTED
Enbridge Energy Management Llc
EEQ
– –
-65
Closed -$10K
DWCH
6829
DELISTED
Datawatch Corp
DWCH
– –
-61
Closed –
RSYS
6830
DELISTED
Radisys Corp
RSYS
$0 ﹤0.01%
+188
New +$850
LHO
6831
DELISTED
LaSalle Hotel Properties
LHO
– –
-376
Closed -$8.89K
AET
6832
DELISTED
Aetna Inc
AET
– –
-14,937
Closed -$1.72M
NWY
6833
CALL
DELISTED
New York & Co Inc
NWY
– –
-49
Closed -$7K
NWY
6834
DELISTED
New York & Co Inc
NWY
$0 ﹤0.01%
+100
New +$268
NYRT
6835
PUT
DELISTED
New York REIT, Inc.
NYRT
– –
-8
Closed -$1K
PX
6836
PUT
DELISTED
Praxair Inc
PX
– –
-38
Closed -$2K
SVU
6837
CALL
DELISTED
SUPERVALU Inc.
SVU
– –
-6
Closed -$2K
PNK
6838
CALL
DELISTED
Pinnacle Entertainment Inc.
PNK
– –
-12
Closed -$2K
WEB
6839
CALL
DELISTED
Web.com Group, Inc.
WEB
– –
-30
Closed -$1K
GPT
6840
DELISTED
Gramercy Property Trust
GPT
– –
-2,604
Closed -$68.5K
KLXI
6841
DELISTED
KLX Inc.
KLXI
– –
-1,890
Closed -$52K
KLXI
6842
PUT
DELISTED
KLX Inc.
KLXI
– –
-11
Closed -$1K
CVG
6843
CALL
DELISTED
Convergys
CVG
– –
-4
Closed -$1K
PHH
6844
PUT
DELISTED
PHH Corporation
PHH
– –
-50
Closed -$1K
EDR
6845
CALL
DELISTED
Education Realty Trust Inc
EDR
– –
-4
Closed -$1K
HGT
6846
DELISTED
Hugoton Royalty Trust
HGT
$0 ﹤0.01%
+154
New +$265
HGT
6847
PUT
DELISTED
Hugoton Royalty Trust
HGT
– –
-13
Closed -$4K
SIGM
6848
CALL
DELISTED
Sigma Designs Inc
SIGM
– –
-23
Closed -$2K
PRKR
6849
DELISTED
Parkervision Inc
PRKR
– –
-10
Closed -$32
NSH
6850
DELISTED
NuStar GP Holdings LLC
NSH
– –
-1,918
Closed -$46.7K
272 273
274
275 276

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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.