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 | |
|---|---|---|---|---|---|---|
|
PRTK
251
DELISTED
Paratek Pharmaceuticals, Inc.
PRTK
| $911K | 0.04% |
36,318
+11,826
| +48% | +$297K |
|
252
ICICI Bank
IBN
$113B
| $903K | 0.04% |
105,592
+23,864
| +29% | +$204K |
|
253
SAP
SAP
$313B
| $901K | 0.04% |
8,225
-13,303
| -62% | -$1.46M |
|
254
Coty
COTY
$3.81B
| $895K | 0.04% |
54,198
-2,231
| -4% | -$36.8K |
|
255
Brighthouse Financial
BHF
$2.48B
| $886K | 0.04% |
+14,573
| New | +$886K |
|
|
EBIX
256
DELISTED
Ebix Inc
EBIX
| $881K | 0.04% |
13,513
+10,677
| +376% | +$696K |
|
257
Investcorp Credit Management BDC
ICMB
$42.4M
| $879K | 0.04% |
94,773
+50,934
| +116% | +$472K |
|
258
Vornado Realty Trust
VNO
$7.93B
| $873K | 0.04% |
11,368
+6,466
| +132% | +$497K |
|
259
Trinity Industries
TRN
$2.31B
| $864K | 0.04% |
37,656
+12,222
| +48% | +$280K |
|
260
Invesco CurrencyShares Swiss Franc Trust
FXF
$377M
| $857K | 0.04% |
8,772
+8,021
| +1,068% | +$784K |
|
261
LendingTree
TREE
$978M
| $849K | 0.03% |
3,477
-1,366
| -28% | -$334K |
|
262
Direxion Daily Emerging Markets Bull 3X Shares
EDC
$86.4M
| $834K | 0.03% |
7,895
+4,017
| +104% | +$424K |
|
263
Altria Group
MO
$112B
| $834K | 0.03% |
+13,159
| New | +$834K |
|
264
iShares Core MSCI Emerging Markets ETF
IEMG
$103B
| $823K | 0.03% |
15,241
+10,510
| +222% | +$568K |
|
265
iShares Expanded Tech-Software Sector ETF
IGV
$9.85B
| $820K | 0.03% |
+28,065
| New | +$820K |
|
266
United Therapeutics
UTHR
$18.1B
| $816K | 0.03% |
6,967
-626
| -8% | -$73.3K |
|
|
TIME
267
DELISTED
Time Inc.
TIME
| $815K | 0.03% |
60,395
+3,988
| +7% | +$53.8K |
|
|
GOLD
268
DELISTED
Randgold Resources Ltd
GOLD
| $815K | 0.03% |
8,354
+8,193
| +5,089% | +$799K |
|
269
Precigen
PGEN
$1.3B
| $812K | 0.03% |
+42,721
| New | +$812K |
|
|
MZOR
270
DELISTED
Mazor Robotics Ltd.
MZOR
| $805K | 0.03% |
16,307
+10,200
| +167% | +$504K |
|
271
Acadia Pharmaceuticals
ACAD
$4.26B
| $799K | 0.03% |
21,226
-49,457
| -70% | -$1.86M |
|
272
National Beverage
FIZZ
$3.75B
| $799K | 0.03% |
12,888
+11,346
| +736% | +$703K |
|
|
BIG
273
DELISTED
Big Lots, Inc.
BIG
| $796K | 0.03% |
+14,867
| New | +$796K |
|
|
RSX
274
DELISTED
VanEck Russia ETF
RSX
| $796K | 0.03% |
35,732
-40,279
| -53% | -$897K |
|
275
Lockheed Martin
LMT
$108B
| $789K | 0.03% |
2,545
-24,899
| -91% | -$7.72M |
|