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 |
Alphabet (Google) Class C
GOOG
|
$54.1M |
| 2 |
Apple
AAPL
|
$28.6M |
| 3 |
Meta Platforms (Facebook)
META
|
$16.5M |
| 4 |
IBM
IBM
|
$13.4M |
| 5 |
Baidu
BIDU
|
$10.3M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$9.89M |
| 2 |
McDonald's
MCD
|
$8.52M |
| 3 |
Ralph Lauren
RL
|
$5.22M |
| 4 |
Intel
INTC
|
$4.74M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
$4.67M |
Sector Composition
| 1 | Communication Services | 22.01% |
| 2 | Technology | 15.83% |
| 3 | Healthcare | 11.95% |
| 4 | Consumer Discretionary | 9.73% |
| 5 | Financials | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
ICPT
151
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $929K | 0.08% |
3,849
-4,080
| -51% | -$985K |
|
152
iShares TIPS Bond ETF
TIP
$13.6B
| $923K | 0.08% |
+8,244
| New | +$923K |
|
153
Rio Tinto
RIO
$103B
| $920K | 0.08% |
22,333
+9,205
| +70% | +$379K |
|
|
RSX
154
DELISTED
VanEck Russia ETF
RSX
| $917K | 0.08% |
50,179
+7,232
| +17% | +$132K |
|
155
iShares Silver Trust
SLV
$20.1B
| $916K | 0.08% |
60,965
+26,257
| +76% | +$395K |
|
156
SPDR S&P Homebuilders ETF
XHB
$2B
| $911K | 0.08% |
24,886
+2,843
| +13% | +$104K |
|
|
CEMP
157
DELISTED
Cempra, Inc.
CEMP
| $902K | 0.08% |
26,273
+19,298
| +277% | +$663K |
|
158
APA Corp
APA
$8.12B
| $901K | 0.08% |
15,646
+14,355
| +1,112% | +$827K |
|
159
Exxon Mobil
XOM
$470B
| $899K | 0.08% |
+10,816
| New | +$899K |
|
160
Illumina
ILMN
$15.5B
| $885K | 0.07% |
4,171
-15,638
| -79% | -$3.32M |
|
|
XEC
161
DELISTED
CIMAREX ENERGY CO
XEC
| $878K | 0.07% |
+7,967
| New | +$878K |
|
162
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.78B
| $866K | 0.07% |
+28,140
| New | +$866K |
|
163
Intuitive Surgical
ISRG
$167B
| $864K | 0.07% |
+16,056
| New | +$864K |
|
|
PLL
164
DELISTED
PALL CORP
PLL
| $842K | 0.07% |
+6,773
| New | +$842K |
|
165
Eastman Chemical
EMN
$7.87B
| $822K | 0.07% |
10,058
+9,954
| +9,571% | +$814K |
|
|
LNKD
166
DELISTED
LinkedIn Corporation
LNKD
| $811K | 0.07% |
3,929
-8,726
| -69% | -$1.8M |
|
167
Johnson & Johnson
JNJ
$432B
| $801K | 0.07% |
8,223
+1,041
| +14% | +$101K |
|
|
YOKU
168
DELISTED
YOUKU TUDOU INC.(CAYMAN ISLS)
YOKU
| $799K | 0.07% |
32,587
+22,005
| +208% | +$540K |
|
169
Infosys
INFY
$68B
| $795K | 0.07% |
+100,436
| New | +$795K |
|
|
OCR
170
DELISTED
OMNICARE INC
OCR
| $780K | 0.07% |
+8,284
| New | +$780K |
|
171
Fiserv
FI
$73.6B
| $778K | 0.07% |
+18,790
| New | +$778K |
|
|
PCP
172
DELISTED
PRECISION CASTPARTS CORP
PCP
| $771K | 0.06% |
3,860
-627
| -14% | -$125K |
|
173
Pfizer
PFE
$140B
| $768K | 0.06% |
+24,163
| New | +$768K |
|
174
Colgate-Palmolive
CL
$69.2B
| $763K | 0.06% |
11,678
+3,284
| +39% | +$215K |
|
|
MJN
175
DELISTED
Mead Johnson Nutrition Company
MJN
| $753K | 0.06% |
8,354
+7,655
| +1,095% | +$690K |
|