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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
AMWD
4651
CALL
DELISTED
American Woodmark
AMWD
$2K ﹤0.01%
9
-3
-25% -$202
AN icon
4652
CALL
AutoNation
AN
$7.1B
$2K ﹤0.01%
48
-14
-23% -$678
ANGI icon
4653
CALL
Angi Inc
ANGI
$240M
$2K ﹤0.01%
1
-6
-86% -$519
ARCC icon
4654
PUT
Ares Capital
ARCC
$13.6B
$2K ﹤0.01%
46
-41
-47% -$565
ARLP icon
4655
CALL
Alliance Resource Partners
ARLP
$3.3B
$2K ﹤0.01%
57
-50
-47% -$609
ARWR icon
4656
CALL
Arrowhead Research
ARWR
$12B
$2K ﹤0.01%
91
-450
-83% -$1.9K
EFOR
4657
PUT
Everforth Inc
EFOR
$884M
$2K ﹤0.01%
87
+37
+74% +$1.31K
AUDC icon
4658
CALL
AudioCodes
AUDC
$249M
$2K ﹤0.01%
+59
New +$253
AVT icon
4659
PUT
Avnet
AVT
$7.25B
$2K ﹤0.01%
39
+4
+11% +$164
DCH
4660
CALL
Dauch Corp
DCH
$1.32B
$2K ﹤0.01%
120
+5
+4% +$72
AXS icon
4661
CALL
AXIS Capital
AXS
$8.63B
$2K ﹤0.01%
35
-31
-47% -$1.68K
AZN icon
4662
CALL
AstraZeneca
AZN
$263B
$2K ﹤0.01%
96
-265
-73% -$15.9K
BAK icon
4663
CALL
Braskem
BAK
$972M
$2K ﹤0.01%
+16
New +$204
BAK icon
4664
Braskem
BAK
$972M
$2K ﹤0.01%
198
-3,282
-94% -$41.9K
BBSI icon
4665
CALL
Barrett Business Services
BBSI
$995M
$2K ﹤0.01%
+80
New +$689
BC icon
4666
PUT
Brunswick
BC
$5.24B
$2K ﹤0.01%
52
-211
-80% -$9.12K
BEN icon
4667
PUT
Franklin Resources
BEN
$17.3B
$2K ﹤0.01%
327
-128
-28% -$4.53K
BR icon
4668
CALL
Broadridge
BR
$17.7B
$2K ﹤0.01%
+12
New +$654
SLAI
4669
CALL
DELISTED
SOLAI Ltd ADS
SLAI
$2K ﹤0.01%
3
+1
+50% +$1.22K
CBU icon
4670
CALL
Community Bank
CBU
$3.5B
$2K ﹤0.01%
+19
New +$709
CCOI icon
4671
CALL
Cogent Communications
CCOI
$612M
$2K ﹤0.01%
6
-11
-65% -$381
CDNS icon
4672
CALL
Cadence Design Systems
CDNS
$93.4B
$2K ﹤0.01%
+6
New +$126
CHEF icon
4673
CALL
Chefs' Warehouse
CHEF
$3.9B
$2K ﹤0.01%
+7
New +$115
CHRS icon
4674
Coherus Oncology
CHRS
$225M
$2K ﹤0.01%
127
-1,548
-92% -$25.4K
CIM
4675
PUT
Chimera Investment
CIM
$1.05B
$2K ﹤0.01%
34
+27
+386% +$1.05K

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.