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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
DRI icon
2551
PUT
Darden Restaurants
DRI
$22.5B
$29K ﹤0.01%
122
+50
+69% +$3.27K
EXPD icon
2552
CALL
Expeditors International
EXPD
$22.9B
$29K ﹤0.01%
141
-133
-49% -$6.46K
GAU
2553
PUT
Galiano Gold
GAU
$486M
$29K ﹤0.01%
+199
New +$658
GES
2554
CALL
DELISTED
Guess Inc
GES
$29K ﹤0.01%
229
-48
-17% -$794
GPRE icon
2555
Green Plains
GPRE
$1.19B
$29K ﹤0.01%
1,502
-7,186
-83% -$126K
PPLI
2556
CALL
People Inc
PPLI
$3.1B
$29K ﹤0.01%
436
+28
+7% +$259
LXU icon
2557
CALL
LSB Industries
LXU
$881M
$29K ﹤0.01%
233
+124
+114% +$1.24K
PLD icon
2558
CALL
Prologis
PLD
$138B
$29K ﹤0.01%
98
-148
-60% -$6.96K
PPC icon
2559
CALL
Pilgrim's Pride
PPC
$6.82B
$29K ﹤0.01%
109
-72
-40% -$1.81K
SJNK icon
2560
State Street SPDR Bloomberg Short Term High Yield Bond ETF
SJNK
$4.89B
$29K ﹤0.01%
+1,083
New +$28.7K
SPB icon
2561
CALL
Spectrum Brands
SPB
$2.04B
$29K ﹤0.01%
26
-17
-40% -$1.95K
SUPN icon
2562
Supernus Pharmaceuticals
SUPN
$2.68B
$29K ﹤0.01%
+1,472
New +$26.1K
UHAL icon
2563
CALL
U-Haul Holding Co
UHAL
$14B
$29K ﹤0.01%
90
+60
+200% +$2.17K
VIPS icon
2564
CALL
Vipshop
VIPS
$6.84B
$29K ﹤0.01%
361
-462
-56% -$5.66K
NVRO
2565
CALL
DELISTED
NEVRO CORP.
NVRO
$29K ﹤0.01%
178
+124
+230% +$8.42K
ASXC
2566
DELISTED
Asensus Surgical, Inc.
ASXC
$29K ﹤0.01%
1,885
+1,747
+1,266% +$54.8K
NS
2567
CALL
DELISTED
NuStar Energy L.P.
NS
$29K ﹤0.01%
201
+149
+287% +$7.13K
AMPE
2568
DELISTED
Ampio Pharmaceuticals Inc.
AMPE
$29K ﹤0.01%
76
+44
+138% +$48.1K
LFC
2569
PUT
DELISTED
China Life Insurance Company Ltd.
LFC
$29K ﹤0.01%
111
+17
+18% +$190
EPE
2570
CALL
DELISTED
EP Energy Corporation
EPE
$29K ﹤0.01%
922
+472
+105% +$2.45K
OCLR
2571
DELISTED
Oclaro Inc.
OCLR
$29K ﹤0.01%
6,052
+5,612
+1,275% +$27.9K
RGC
2572
CALL
DELISTED
Regal Entertainment Group
RGC
$29K ﹤0.01%
145
+3
+2% +$62
MEET
2573
CALL
DELISTED
The Meet Group, Inc. Common Stock
MEET
$29K ﹤0.01%
386
+274
+245% +$1.02K
ASEI
2574
CALL
DELISTED
AMER SCIENCE & ENGR INC.
ASEI
$29K ﹤0.01%
+80
New +$2.47K
SGY
2575
CALL
DELISTED
Stone Energy
SGY
$29K ﹤0.01%
+13
New +$520

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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.