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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
-0.41%
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
$1.25B
AUM Growth
-$22.5M
Cap. Flow
-$16M
Cap. Flow %
-1.28%
Top 10 Hldgs %
17.26%
Holding
7,084
New
1,678
Increased
2,214
Reduced
1,528
Closed
1,505

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$34.2M
2
GMCR
KEURIG GREEN MTN INC
GMCR
+$17.9M
3
CMG icon
Chipotle Mexican Grill
CMG
+$14.7M
4
DIS icon
Walt Disney
DIS
+$13.3M
5
BKNG icon
Booking.com
BKNG
+$12.1M

Sector Composition

Rank Sector Weight
1 Technology 7.64%
2 Communication Services 6.85%
3 Consumer Discretionary 4.92%
4 Healthcare 4.57%
5 Financials 4.22%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
COTY icon
5651
CALL
Coty
COTY
$2.33B
-68
Closed -$2K
COST icon
5652
Costco
COST
$415B
-2,940
Closed -$446K
CPA icon
5653
CALL
Copa Holdings
CPA
$5.56B
-58
Closed -$1K
CPRT icon
5654
PUT
Copart
CPRT
$25.9B
-304
Closed -$45K
CPT icon
5655
CALL
Camden Property Trust
CPT
$11.3B
-30
Closed -$34K
CQP icon
5656
Cheniere Energy
CQP
$31.8B
-4,864
Closed -$121K
CRK icon
5657
Comstock Resources
CRK
$3.97B
$0 ﹤0.01%
+190
New +$1.06K
CRS icon
5658
CALL
Carpenter Technology
CRS
$30B
-26
Closed -$1K
CSCO icon
5659
Cisco
CSCO
$450B
-14,012
Closed -$360K
CSGP icon
5660
CALL
CoStar Group
CSGP
$11.3B
-10
Closed -$2K
CSGS
5661
DELISTED
CSG Systems International
CSGS
-134
Closed -$5.05K
CSL icon
5662
CALL
Carlisle Companies
CSL
$13.6B
-11
Closed -$3K
CSV icon
5663
Carriage Services
CSV
$618M
-809
Closed -$17.3K
CTAS icon
5664
CALL
Cintas
CTAS
$82.4B
-220
Closed -$4K
CTLP
5665
DELISTED
Cantaloupe
CTLP
$0 ﹤0.01%
111
-3,448
-97% -$12.4K
CTRN icon
5666
Citi Trends
CTRN
$524M
-230
Closed -$4K
CUBI icon
5667
CALL
Customers Bancorp
CUBI
$2.59B
-10
Closed -$10K
CUZ icon
5668
Cousins Properties
CUZ
$5.29B
-38
Closed -$967
CVBF icon
5669
CALL
CVB Financial
CVBF
$3.98B
-127
Closed -$6K
CVEO icon
5670
PUT
Civeo
CVEO
$379M
-1
Closed -$3K
CVI icon
5671
CALL
CVR Energy
CVI
$3.36B
-122
Closed -$4K
CW icon
5672
CALL
Curtiss-Wright
CW
$27.7B
-5
Closed -$2K
CWCO icon
5673
CALL
Consolidated Water Co
CWCO
$469M
-32
Closed -$1K
CWEN icon
5674
Clearway Energy Class C
CWEN
$5B
-1,399
Closed -$18.4K
CWEN icon
5675
PUT
Clearway Energy Class C
CWEN
$5B
-104
Closed -$13K

Similar funds

Simplex Trading's Q1 2016 Portfolio in Review

As of Q1 2016, Simplex Trading held 7,084 positions worth $1.25B, down 1.8% from $1.28B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

Simplex Trading's Q1 2016 filing shows 1,678 new, 2,214 increased, 1,528 reduced and 1,505 closed positions. Its largest new stake was Broadcom: 2,493,400 shares worth $38.5M. The largest sale was Apple, an estimated $34.2M.

By sector, the portfolio is most concentrated in Technology at 7.6% of assets, up from 7% a quarter earlier, followed by Communication Services and Consumer Discretionary.

  • Simplex Trading's largest Q1 2016 buy was Broadcom: 2,493,400 shares worth $38.5M.
  • Simplex Trading added most to Citigroup in Q1 2016, an estimated $8.7M increase.
  • Simplex Trading's biggest Q1 2016 reduction was Booking.com, cutting an estimated $12.1M.
  • Simplex Trading fully exited Apple in Q1 2016, selling an estimated $34.2M.
  • Simplex Trading's ten largest holdings make up 17% of its $1.25B portfolio in Q1 2016.
  • Simplex Trading opened 1,678 new positions and closed 1,505 in Q1 2016.
  • Simplex Trading's portfolio value fell 1.8% quarter-over-quarter to $1.25B.

Based on Simplex Trading's 13F filing for Q1 2016, filed 14 Apr 2016.