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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

Top Buys

Rank Stock Value
1
LNKD
LinkedIn Corporation
LNKD
+$21.4M
2
GLD icon
SPDR Gold Trust
GLD
+$17.3M
3
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
+$15M
4
BIIB icon
Biogen
BIIB
+$14.9M
5
V icon
Visa
V
+$14.1M

Top Sells

Rank Stock Value
1
AVGO icon
Broadcom
AVGO
+$36.7M
2
GOOG icon
Alphabet (Google) Class C
GOOG
+$20.1M
3
EEM icon
iShares MSCI Emerging Markets ETF
EEM
+$15.8M
4
C icon
Citigroup
C
+$14.7M
5
MDY icon
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
+$13.1M

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
GLOG
1251
CALL
DELISTED
GASLOG LTD
GLOG
$138K 0.01%
759
+286
+60% +$3.46K
ASCMA
1252
DELISTED
Ascent Capital Group, Inc. Series A
ASCMA
$138K 0.01%
9,007
-4,624
-34% -$75.2K
RPRX
1253
DELISTED
Repros Therapeutics Inc.
RPRX
$138K 0.01%
+86,054
New +$165K
AFL icon
1254
CALL
Aflac
AFL
$63.3B
$137K 0.01%
676
-648
-49% -$22.1K
UPS icon
1255
PUT
United Parcel Service
UPS
$97B
$137K 0.01%
1,474
+780
+112% +$81.2K
VICR icon
1256
Vicor
VICR
$10.5B
$137K 0.01%
13,664
+805
+6% +$8K
AUY
1257
CALL
DELISTED
Yamana Gold, Inc.
AUY
$137K 0.01%
992
+229
+30% +$1.03K
SQBG
1258
DELISTED
Sequential Brands Group, Inc.
SQBG
$137K 0.01%
432
+368
+575% +$104K
EMC
1259
PUT
DELISTED
EMC CORPORATION
EMC
$137K 0.01%
2,838
+517
+22% +$14K
CX icon
1260
Cemex
CX
$17.7B
$136K 0.01%
+23,063
New +$148K
MDY icon
1261
PUT
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$26.9B
$136K 0.01%
213
-335
-61% -$89.5K
MUSA icon
1262
CALL
Murphy USA
MUSA
$11.5B
$136K 0.01%
221
-24
-10% -$1.56K
KERX
1263
DELISTED
Keryx Biopharmaceuticals Inc
KERX
$136K 0.01%
20,554
+12,156
+145% +$68K
SGG
1264
DELISTED
iPath Bloomberg Sugar Subindex Total Return ETN due June 24, 2038
SGG
$136K 0.01%
2,916
+765
+36% +$29.9K
CP icon
1265
PUT
Canadian Pacific Kansas City
CP
$82B
$135K 0.01%
1,455
+775
+114% +$20.9K
TREE icon
1266
PUT
LendingTree
TREE
$550M
$135K 0.01%
210
+154
+275% +$13K
VUZI icon
1267
Vuzix
VUZI
$191M
$135K 0.01%
17,932
+3,531
+25% +$19.4K
AFTY
1268
PUT
DELISTED
Pacer CSOP FTSE China A50 ETF
AFTY
$135K 0.01%
278
+228
+456% +$2.86K
BAX icon
1269
PUT
Baxter International
BAX
$11.2B
$134K 0.01%
551
+227
+70% +$9.96K
GLNG icon
1270
PUT
Golar LNG
GLNG
$5.07B
$134K 0.01%
534
+486
+1,013% +$8.65K
WAIR
1271
DELISTED
WESCO Aircraft Holdings Inc.
WAIR
$134K 0.01%
9,993
+419
+4% +$5.96K
NXST icon
1272
Nexstar Media Group
NXST
$5.53B
$133K 0.01%
2,808
-6,580
-70% -$329K
PHG icon
1273
Philips
PHG
$25.3B
$133K 0.01%
7,239
-17,125
-70% -$331K
USAC icon
1274
USA Compression Partners
USAC
$3.9B
$133K 0.01%
9,138
-218
-2% -$3.07K
GRN
1275
CALL
DELISTED
iPath Global Carbon ETN
GRN
$133K 0.01%
399
+262
+191% +$1.77K
49 50
51
52 53

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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.