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 |
Broadcom
AVGO
|
$38.5M |
| 2 |
SPDR Gold Trust
GLD
|
$18.5M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
$15.8M |
| 4 |
SPDR S&P MidCap 400 ETF Trust
MDY
|
$12.9M |
| 5 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
$8.72M |
Top Sells
| 1 |
Apple
AAPL
|
$36.1M |
| 2 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
$17.9M |
| 3 |
Chipotle Mexican Grill
CMG
|
$14.9M |
| 4 |
Walt Disney
DIS
|
$14.5M |
| 5 |
Alibaba
BABA
|
$13.3M |
Sector Composition
| 1 | Technology | 15.08% |
| 2 | Communication Services | 13.51% |
| 3 | Consumer Discretionary | 9.68% |
| 4 | Healthcare | 8.98% |
| 5 | Financials | 8.3% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
CBPO
176
DELISTED
China Biologic Products Holdings, Inc.
CBPO
| $695K | 0.06% |
6,071
+3,626
| +148% | +$415K |
|
|
ETP
177
DELISTED
Energy Transfer Partners L.p.
ETP
| $693K | 0.06% |
21,441
-33,710
| -61% | -$1.09M |
|
178
GSK
GSK
$80.6B
| $688K | 0.05% |
13,580
-3,160
| -19% | -$160K |
|
179
LPL Financial
LPLA
$27.2B
| $688K | 0.05% |
+27,744
| New | +$688K |
|
180
Quad
QUAD
$338M
| $688K | 0.05% |
+53,177
| New | +$688K |
|
|
ZEN
181
DELISTED
ZENDESK INC
ZEN
| $669K | 0.05% |
31,988
+29,471
| +1,171% | +$616K |
|
182
Goodyear
GT
$2.46B
| $662K | 0.05% |
+20,087
| New | +$662K |
|
|
EGN
183
DELISTED
Energen
EGN
| $661K | 0.05% |
18,071
+17,883
| +9,512% | +$654K |
|
184
Synaptics
SYNA
$2.73B
| $660K | 0.05% |
8,286
+4,007
| +94% | +$319K |
|
185
ProShares Ultra Energy
DIG
$69.2M
| $659K | 0.05% |
17,066
+13,878
| +435% | +$536K |
|
186
Direxion Daily Junior Gold Miners Index Bull 2X Shares
JNUG
$495M
| $648K | 0.05% |
441
+283
| +179% | +$416K |
|
187
Baxter International
BAX
$12.4B
| $646K | 0.05% |
15,731
+6,931
| +79% | +$285K |
|
188
iShares S&P 500 Value ETF
IVE
$40.9B
| $635K | 0.05% |
7,069
+7,039
| +23,463% | +$632K |
|
189
ATI
ATI
$10.7B
| $620K | 0.05% |
38,097
+13,853
| +57% | +$225K |
|
|
AKRX
190
DELISTED
Akorn, Inc.
AKRX
| $618K | 0.05% |
+26,305
| New | +$618K |
|
|
CPGX
191
DELISTED
COLUMBIA PIPELINE GROUP IN COM STK (DE)
CPGX
| $617K | 0.05% |
24,604
+7,905
| +47% | +$198K |
|
192
Golar LNG
GLNG
$4.22B
| $616K | 0.05% |
+34,289
| New | +$616K |
|
193
Southwest Airlines
LUV
$16.7B
| $616K | 0.05% |
13,759
-4,324
| -24% | -$194K |
|
194
Direxion Daily Real Estate Bull 3X Shares
DRN
$64.1M
| $615K | 0.05% |
28,160
+24,804
| +739% | +$542K |
|
|
NTI
195
DELISTED
NORTHERN TIER ENERGY LP CLASS A
NTI
| $614K | 0.05% |
26,085
-979
| -4% | -$23K |
|
196
ProShares UltraPro Russell2000
URTY
$399M
| $613K | 0.05% |
+18,100
| New | +$613K |
|
197
iShares US Real Estate ETF
IYR
$3.74B
| $612K | 0.05% |
+7,873
| New | +$612K |
|
|
KANG
198
DELISTED
iKang Healthcare Group, Inc.
KANG
| $610K | 0.05% |
27,910
+16,277
| +140% | +$356K |
|
199
Novartis
NVS
$249B
| $609K | 0.05% |
9,384
+6,018
| +179% | +$391K |
|
200
United States Natural Gas Fund
UNG
$626M
| $608K | 0.05% |
5,710
+2,548
| +81% | +$271K |
|