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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 Buys

Rank Stock Value
1
AVGO icon
Broadcom
AVGO
+$33.7M
2
GLD icon
SPDR Gold Trust
GLD
+$17.8M
3
EEM icon
iShares MSCI Emerging Markets ETF
EEM
+$14.3M
4
MDY icon
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
+$11.9M
5
C icon
Citigroup
C
+$8.7M

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
AVA icon
5001
CALL
Avista
AVA
$3.47B
$1K ﹤0.01%
+9
New +$339
AVB icon
5002
PUT
AvalonBay Communities
AVB
$27.1B
$1K ﹤0.01%
42
-96
-70% -$16.9K
AWI icon
5003
PUT
Armstrong World Industries
AWI
$6.86B
$1K ﹤0.01%
+63
New +$2.58K
AXS icon
5004
PUT
AXIS Capital
AXS
$8.59B
$1K ﹤0.01%
+40
New +$2.16K
BANC icon
5005
CALL
Banc of California
BANC
$3.28B
$1K ﹤0.01%
+5
New +$75
BGS icon
5006
PUT
B&G Foods
BGS
$285M
$1K ﹤0.01%
35
– –
BIP icon
5007
CALL
Brookfield Infrastructure Partners
BIP
$18.8B
$1K ﹤0.01%
+3
New +$44
BLMN icon
5008
CALL
Bloomin' Brands
BLMN
$680M
$1K ﹤0.01%
+21
New +$353
BMA icon
5009
CALL
Banco Macro
BMA
$5.7B
$1K ﹤0.01%
+51
New +$3.25K
BMA icon
5010
PUT
Banco Macro
BMA
$5.7B
$1K ﹤0.01%
28
+24
+600% +$1.53K
BMVP icon
5011
CALL
Invesco Bloomberg MVP Multi-factor ETF
BMVP
$104M
$1K ﹤0.01%
39
-15
-28% -$340
BPOP icon
5012
CALL
Popular Inc
BPOP
$11B
$1K ﹤0.01%
9
-409
-98% -$10.7K
BPOP icon
5013
PUT
Popular Inc
BPOP
$11B
$1K ﹤0.01%
83
-36
-30% -$943
BRFS
5014
PUT
DELISTED
BRF SA
BRFS
$1K ﹤0.01%
+40
New +$529
BTE icon
5015
PUT
Baytex Energy
BTE
$3.08B
$1K ﹤0.01%
287
+8
+3% +$21
BTI icon
5016
PUT
British American Tobacco
BTI
$132B
$1K ﹤0.01%
+132
New +$7.27K
BURL icon
5017
PUT
Burlington
BURL
$22B
$1K ﹤0.01%
74
+64
+640% +$3.34K
BBBY
5018
PUT
Bed Bath & Beyond
BBBY
$473M
$1K ﹤0.01%
+13
New +$127
BZH icon
5019
CALL
Beazer Homes USA
BZH
$907M
$1K ﹤0.01%
+55
New +$457
CAF
5020
PUT
Morgan Stanley China A Share Fund
CAF
$334M
$1K ﹤0.01%
+20
New +$323
CALX icon
5021
PUT
Calix
CALX
$2.27B
$1K ﹤0.01%
+15
New +$106
CB icon
5022
PUT
Chubb
CB
$140B
$1K ﹤0.01%
62
+17
+38% +$1.95K
CBRE icon
5023
PUT
CBRE Group
CBRE
$40.8B
$1K ﹤0.01%
+34
New +$935
CBRL icon
5024
PUT
Cracker Barrel
CBRL
$1.2B
$1K ﹤0.01%
9
+6
+200% +$828
CCI icon
5025
PUT
Crown Castle
CCI
$32.7B
$1K ﹤0.01%
22
-24
-52% -$2.04K
199 200
201
202 203

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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.