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 |
Gilead Sciences
GILD
|
$16.8M |
| 2 |
Apple
AAPL
|
$16.2M |
| 3 |
Booking.com
BKNG
|
$15.6M |
| 4 |
Alphabet (Google) Class A
GOOGL
|
$15.3M |
| 5 |
Wells Fargo
WFC
|
$11.9M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
$38M |
| 2 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
$30.7M |
| 3 |
LNKD
LinkedIn Corporation
LNKD
|
$15.2M |
| 4 |
CELG
Celgene Corp
CELG
|
$11.5M |
| 5 |
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
|
$10.5M |
Sector Composition
| 1 | Communication Services | 15.83% |
| 2 | Healthcare | 15.63% |
| 3 | Consumer Discretionary | 12.92% |
| 4 | Technology | 11.44% |
| 5 | Financials | 8.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
151
Altria Group
MO
$112B
| $1.03M | 0.07% |
+16,355
| New | +$1.03M |
|
152
Home Depot
HD
$410B
| $1.03M | 0.07% |
8,005
-12,061
| -60% | -$1.55M |
|
|
KANG
153
DELISTED
iKang Healthcare Group, Inc.
KANG
| $1.03M | 0.07% |
56,993
+17,058
| +43% | +$308K |
|
154
Mohawk Industries
MHK
$8.41B
| $1.02M | 0.07% |
5,112
+603
| +13% | +$121K |
|
155
Kennametal
KMT
$1.66B
| $1.02M | 0.07% |
+35,060
| New | +$1.02M |
|
|
MXIM
156
DELISTED
Maxim Integrated Products
MXIM
| $1.02M | 0.07% |
+25,423
| New | +$1.02M |
|
157
Bunge Global
BG
$16.2B
| $1.01M | 0.07% |
+17,133
| New | +$1.01M |
|
158
PBF Energy
PBF
$3.27B
| $1.01M | 0.07% |
44,751
+17,546
| +64% | +$397K |
|
159
Restaurant Brands International
QSR
$20.4B
| $1.01M | 0.07% |
+22,665
| New | +$1.01M |
|
160
iShares MSCI Mexico ETF
EWW
$1.82B
| $1.01M | 0.07% |
+20,829
| New | +$1.01M |
|
161
ON Semiconductor
ON
$19.7B
| $998K | 0.07% |
+81,070
| New | +$998K |
|
|
SOHU
162
Sohu.com
SOHU
$487M
| $996K | 0.07% |
22,517
+906
| +4% | +$40.1K |
|
|
AGU
163
DELISTED
Agrium
AGU
| $991K | 0.07% |
+10,936
| New | +$991K |
|
164
Alkermes
ALKS
$4.77B
| $989K | 0.07% |
21,033
+18,712
| +806% | +$880K |
|
|
AVG
165
DELISTED
AVG Technologies N.V.
AVG
| $984K | 0.07% |
39,383
+35,787
| +995% | +$894K |
|
166
Direxion Daily Emerging Markets Bull 3X Shares
EDC
$83.2M
| $975K | 0.07% |
15,052
+3,303
| +28% | +$214K |
|
167
Western Digital
WDC
$31.4B
| $974K | 0.07% |
22,060
-93,902
| -81% | -$4.15M |
|
|
TSRO
168
DELISTED
TESARO, Inc.
TSRO
| $963K | 0.07% |
+9,616
| New | +$963K |
|
169
Philips
PHG
$26.4B
| $958K | 0.06% |
42,196
+35,216
| +505% | +$800K |
|
|
FINL
170
DELISTED
Finish Line
FINL
| $957K | 0.06% |
41,471
+33,175
| +400% | +$766K |
|
171
Mid-America Apartment Communities
MAA
$16.9B
| $949K | 0.06% |
+10,105
| New | +$949K |
|
172
LCI Industries
LCII
$2.56B
| $948K | 0.06% |
9,675
+9,304
| +2,508% | +$912K |
|
173
ProShares Ultra Russell2000
UWM
$365M
| $925K | 0.06% |
39,044
-14,144
| -27% | -$335K |
|
|
WNR
174
DELISTED
Western Refining Inc
WNR
| $918K | 0.06% |
34,727
+7,800
| +29% | +$206K |
|
175
Diamondback Energy
FANG
$41.3B
| $917K | 0.06% |
+9,507
| New | +$917K |
|