Simplex Trading Portfolio holdings
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.
Top Buys
| 1 |
Tesla
TSLA
|
$27.1M |
| 2 |
Netflix
NFLX
|
$24.7M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$20.1M |
| 4 |
TWX
Time Warner Inc
TWX
|
$18.3M |
| 5 |
Alibaba
BABA
|
$14.8M |
Top Sells
| 1 |
Amazon
AMZN
|
$71.9M |
| 2 |
Micron Technology
MU
|
$47.7M |
| 3 |
Alphabet (Google) Class C
GOOG
|
$26.3M |
| 4 |
Boeing
BA
|
$21M |
| 5 |
Citigroup
C
|
$19.6M |
Sector Composition
| 1 | Consumer Discretionary | 15.64% |
| 2 | Communication Services | 14.16% |
| 3 | Technology | 12.46% |
| 4 | Financials | 10.94% |
| 5 | Healthcare | 10.33% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
WUBA
226
DELISTED
58.COM INC
WUBA
| $921K | 0.04% |
11,542
-19,788
| -63% | -$1.58M |
|
227
CRISPR Therapeutics
CRSP
$4.99B
| $914K | 0.04% |
20,015
+17,247
| +623% | +$788K |
|
|
CLVS
228
DELISTED
Clovis Oncology, Inc.
CLVS
| $902K | 0.04% |
17,102
-25,650
| -60% | -$1.35M |
|
|
DATA
229
DELISTED
Tableau Software, Inc.
DATA
| $891K | 0.04% |
11,027
-14,437
| -57% | -$1.17M |
|
|
DISH
230
DELISTED
DISH Network Corp.
DISH
| $885K | 0.04% |
23,375
-3,863
| -14% | -$146K |
|
|
MZOR
231
DELISTED
Mazor Robotics Ltd.
MZOR
| $878K | 0.04% |
14,313
+8,255
| +136% | +$506K |
|
232
Energy Transfer Partners
ET
$59.7B
| $872K | 0.04% |
+61,379
| New | +$872K |
|
233
Xerox
XRX
$493M
| $869K | 0.04% |
30,203
+15,507
| +106% | +$446K |
|
|
LLL
234
DELISTED
L3 Technologies, Inc.
LLL
| $868K | 0.04% |
+4,177
| New | +$868K |
|
|
JNPR
235
DELISTED
Juniper Networks
JNPR
| $865K | 0.04% |
+35,580
| New | +$865K |
|
|
BPL
236
DELISTED
Buckeye Partners, L.P.
BPL
| $863K | 0.04% |
23,092
+8,016
| +53% | +$300K |
|
|
SHLX
237
DELISTED
Shell Midstream Partners, L.P.
SHLX
| $861K | 0.04% |
40,918
-1,987
| -5% | -$41.8K |
|
238
Planet Fitness
PLNT
$8.77B
| $844K | 0.04% |
+22,348
| New | +$844K |
|
239
uniQure
QURE
$985M
| $844K | 0.04% |
35,933
+15,612
| +77% | +$367K |
|
240
Invesco S&P 500 Low Volatility ETF
SPLV
$7.99B
| $844K | 0.04% |
17,977
+17,213
| +2,253% | +$808K |
|
241
Spectrum Brands
SPB
$1.38B
| $842K | 0.04% |
8,125
-5,014
| -38% | -$520K |
|
242
iShares Core MSCI Emerging Markets ETF
IEMG
$103B
| $839K | 0.04% |
14,367
+11,295
| +368% | +$660K |
|
243
Darden Restaurants
DRI
$24.5B
| $838K | 0.04% |
+9,830
| New | +$838K |
|
244
Enterprise Products Partners
EPD
$68.6B
| $836K | 0.04% |
+34,162
| New | +$836K |
|
245
iShares Semiconductor ETF
SOXX
$13.7B
| $835K | 0.04% |
+13,929
| New | +$835K |
|
246
Howmet Aerospace
HWM
$71.8B
| $834K | 0.04% |
+47,254
| New | +$834K |
|
247
AB InBev
BUD
$118B
| $825K | 0.04% |
7,513
+4,173
| +125% | +$458K |
|
248
ON Semiconductor
ON
$20.1B
| $824K | 0.04% |
+33,727
| New | +$824K |
|
249
Old Dominion Freight Line
ODFL
$31.7B
| $822K | 0.04% |
16,794
+5,616
| +50% | +$275K |
|
250
Herbalife
HLF
$1.02B
| $815K | 0.04% |
+16,742
| New | +$815K |
|