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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
CSGP icon
5876
CoStar Group
CSGP
$11.9B
-70
Closed -$1K
CSGS
5877
CALL
DELISTED
CSG Systems International
CSGS
-36
Closed -$20K
CSL icon
5878
Carlisle Companies
CSL
$13.8B
-208
Closed -$21.1K
CSL icon
5879
PUT
Carlisle Companies
CSL
$13.8B
-1
Closed -$1K
CSTM icon
5880
PUT
Constellium
CSTM
$4.02B
-171
Closed -$12K
CSV icon
5881
CALL
Carriage Services
CSV
$635M
-34
Closed -$4K
CTAS icon
5882
Cintas
CTAS
$84.4B
-8,588
Closed -$198K
CTLP
5883
DELISTED
Cantaloupe
CTLP
-111
Closed -$476
CTSH icon
5884
Cognizant
CTSH
$22.3B
-25,760
Closed -$1.56M
CUK
5885
CALL
DELISTED
Carnival PLC
CUK
-5
Closed -$3K
CVLG icon
5886
CALL
Covenant Logistics
CVLG
$1.13B
-20
Closed -$2K
CVLT icon
5887
CALL
Commault Systems
CVLT
$6.19B
-156
Closed -$23K
CVLT icon
5888
PUT
Commault Systems
CVLT
$6.19B
-24
Closed -$1K
CVS icon
5889
CVS Health
CVS
$137B
-17,329
Closed -$1.73M
CW icon
5890
PUT
Curtiss-Wright
CW
$27.5B
-52
Closed -$2K
CWST icon
5891
Casella Waste Systems
CWST
$5.68B
-587
Closed -$3K
BGMS
5892
Bio Green Med Solution Inc
BGMS
$5.1M
0
BGMS
5893
PUT
Bio Green Med Solution Inc
BGMS
$5.1M
0
-$9K
CYTK icon
5894
PUT
Cytokinetics
CYTK
$10.9B
-65
Closed -$2K
CZR icon
5895
Caesars Entertainment
CZR
$6.1B
-450
Closed -$6.15K
DAKT icon
5896
Daktronics
DAKT
$956M
-301
Closed -$2.27K
DBC icon
5897
Invesco DB Commodity Index Tracking Fund
DBC
$1.67B
-16,073
Closed -$233K
DBA icon
5898
Invesco DB Agriculture Fund
DBA
$1.23B
-28,715
Closed -$591K
DBB icon
5899
Invesco DB Base Metals Fund
DBB
$308M
-2,812
Closed -$35.7K
DBP icon
5900
Invesco DB Precious Metals Fund
DBP
$239M
-2,599
Closed -$96K

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.