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 |
Amazon
AMZN
|
$44.9M |
| 2 |
iShares Russell 2000 ETF
IWM
|
$31.7M |
| 3 |
TWX
Time Warner Inc
TWX
|
$26.1M |
| 4 |
Booking.com
BKNG
|
$21.7M |
| 5 |
Alphabet (Google) Class C
GOOG
|
$18.2M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$42.8M |
| 2 |
Amgen
AMGN
|
$32.3M |
| 3 |
Baidu
BIDU
|
$21.9M |
| 4 |
Micron Technology
MU
|
$21.2M |
| 5 |
Alphabet (Google) Class A
GOOGL
|
$17.7M |
Sector Composition
| 1 | Consumer Discretionary | 21.41% |
| 2 | Technology | 19.71% |
| 3 | Communication Services | 17.68% |
| 4 | Healthcare | 6.08% |
| 5 | Financials | 5.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
226
iShares MSCI Hong Kong ETF
EWH
$709M
| $1.03M | 0.04% |
41,532
+39,995
| +2,602% | +$987K |
|
227
Lowe's Companies
LOW
$151B
| $1.02M | 0.04% |
+12,750
| New | +$1.02M |
|
228
iShares MSCI Emerging Markets Min Vol Factor ETF
EEMV
$4.6B
| $1.02M | 0.04% |
17,529
+11,688
| +200% | +$679K |
|
229
Sprouts Farmers Market
SFM
$13.5B
| $1.02M | 0.04% |
54,217
+37,764
| +230% | +$708K |
|
230
Nabors Industries
NBR
$566M
| $1.01M | 0.04% |
2,504
-957
| -28% | -$386K |
|
231
Service Corp International
SCI
$10.8B
| $1.01M | 0.04% |
29,211
-23,504
| -45% | -$810K |
|
|
SPLK
232
DELISTED
Splunk Inc
SPLK
| $1M | 0.04% |
+15,086
| New | +$1M |
|
233
Copa Holdings
CPA
$4.87B
| $1M | 0.04% |
+8,032
| New | +$1M |
|
234
Carnival Corp
CCL
$42.8B
| $996K | 0.04% |
15,429
+15,144
| +5,314% | +$978K |
|
235
YPF
YPF
$12.3B
| $992K | 0.04% |
44,548
-114,555
| -72% | -$2.55M |
|
|
COHR
236
DELISTED
Coherent Inc
COHR
| $976K | 0.04% |
4,152
+452
| +12% | +$106K |
|
|
FINL
237
DELISTED
Finish Line
FINL
| $972K | 0.04% |
80,876
+38,866
| +93% | +$467K |
|
238
National Healthcare
NHC
$1.77B
| $971K | 0.04% |
+15,528
| New | +$971K |
|
|
TSRO
239
DELISTED
TESARO, Inc.
TSRO
| $968K | 0.04% |
7,499
-3,539
| -32% | -$457K |
|
|
BLUE
240
DELISTED
bluebird bio
BLUE
| $967K | 0.04% |
544
-305
| -36% | -$542K |
|
241
Evolent Health
EVH
$1.11B
| $967K | 0.04% |
54,361
+14,987
| +38% | +$267K |
|
|
RGC
242
DELISTED
Regal Entertainment Group
RGC
| $967K | 0.04% |
60,491
+56,759
| +1,521% | +$907K |
|
243
Teradata
TDC
$1.97B
| $966K | 0.04% |
+28,594
| New | +$966K |
|
244
HSBC
HSBC
$227B
| $961K | 0.04% |
21,289
-48,963
| -70% | -$2.21M |
|
245
Jack in the Box
JACK
$380M
| $961K | 0.04% |
9,433
+3,096
| +49% | +$315K |
|
|
STI
246
DELISTED
SunTrust Banks, Inc.
STI
| $958K | 0.04% |
+16,030
| New | +$958K |
|
247
CubeSmart
CUBE
$9.48B
| $930K | 0.04% |
35,833
+35,289
| +6,487% | +$916K |
|
248
Teradyne
TER
$19.1B
| $918K | 0.04% |
24,624
+15,870
| +181% | +$592K |
|
249
Louisiana-Pacific
LPX
$6.95B
| $917K | 0.04% |
33,876
+23,287
| +220% | +$630K |
|
|
MRTX
250
DELISTED
Mirati Therapeutics, Inc. Common Stock
MRTX
| $911K | 0.04% |
77,903
+77,580
| +24,019% | +$907K |
|