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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
EFZ icon
5726
ProShares Trust Short MSCI EAFE
EFZ
$12.3M
$0 ﹤0.01%
+1
New +$71
EGBN icon
5727
Eagle Bancorp
EGBN
$867M
– –
-98
Closed -$4K
EGHT icon
5728
CALL
8x8 Inc
EGHT
$247M
– –
-14
Closed -$2K
EGHT icon
5729
8x8 Inc
EGHT
$247M
– –
-5
Closed -$55
EGY icon
5730
Vaalco Energy
EGY
$594M
– –
-2,974
Closed -$4K
EGY icon
5731
PUT
Vaalco Energy
EGY
$594M
– –
-40
Closed -$4K
EHC icon
5732
PUT
Encompass Health
EHC
$11.2B
– –
-1
Closed -$1K
EIX icon
5733
Edison International
EIX
$30.7B
– –
-363
Closed -$23.5K
EL icon
5734
Estee Lauder
EL
$29B
– –
-4,467
Closed -$398K
EMB icon
5735
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$14.9B
– –
-6,312
Closed -$667K
EMLC icon
5736
VanEck JP Morgan EM Local Currency Bond ETF
EMLC
$4.74B
– –
-200
Closed -$6K
ENOV icon
5737
Enovis
ENOV
$1.56B
– –
-1,996
Closed -$84.9K
ENOV icon
5738
PUT
Enovis
ENOV
$1.56B
– –
-132
Closed -$67K
ENR icon
5739
Energizer
ENR
$1.44B
– –
-268
Closed -$9.81K
ENS icon
5740
EnerSys
ENS
$6.95B
– –
-203
Closed -$11K
EPAM icon
5741
EPAM Systems
EPAM
$4.69B
– –
-2,365
Closed -$163K
EPD icon
5742
Enterprise Products Partners
EPD
$83.8B
– –
-32,034
Closed -$746K
EPM icon
5743
Evolution Petroleum
EPM
$137M
– –
-158
Closed -$710
EPP icon
5744
iShares MSCI Pacific ex Japan ETF
EPP
$2.18B
– –
-3,859
Closed -$148K
EPR icon
5745
EPR Properties
EPR
$4.86B
– –
-2,892
Closed -$176K
EQIX icon
5746
Equinix
EQIX
$107B
– –
-2,467
Closed -$750K
EQNR icon
5747
Equinor
EQNR
$95.9B
– –
-7,627
Closed -$106K
EQNR icon
5748
PUT
Equinor
EQNR
$95.9B
– –
-107
Closed -$36K
EQT icon
5749
PUT
EQT Corp
EQT
$33.2B
– –
-191
Closed -$101K
ERIC icon
5750
PUT
Ericsson
ERIC
$30.7B
– –
-30
Closed -$4K
228 229
230
231 232

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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.