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
|
+$158M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$69.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$57.4M |
| 4 |
Citigroup
C
|
+$23.4M |
| 5 |
Goldman Sachs
GS
|
+$23M |
Top Sells
| 1 |
Apple
AAPL
|
+$49.8M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
+$43.2M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$42.2M |
| 4 |
Micron Technology
MU
|
+$26.1M |
| 5 |
Adobe
ADBE
|
+$21M |
Sector Composition
| 1 | Consumer Discretionary | 20.63% |
| 2 | Communication Services | 16.3% |
| 3 | Technology | 12.42% |
| 4 | Industrials | 9.24% |
| 5 | Healthcare | 8.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
251
iShares Russell 2000 Growth ETF
IWO
$12.5B
| $1.17M | ﹤0.01% |
5,427
+316
| +6% | +$68K |
|
252
United States Brent Oil Fund
BNO
$102M
| $1.16M | ﹤0.01% |
+49,763
| New | +$1.16M |
|
253
PagSeguro Digital
PAGS
$2.86B
| $1.14M | ﹤0.01% |
41,201
-16,558
| -29% | -$458K |
|
|
APTI
254
DELISTED
Apptio, Inc. Class A Common Stock
APTI
| $1.14M | ﹤0.01% |
30,844
+9,067
| +42% | +$335K |
|
|
NVTA
255
DELISTED
Invitae Corporation
NVTA
| $1.13M | ﹤0.01% |
+67,514
| New | +$1.13M |
|
|
JBGS
256
JBG SMITH
JBGS
$1.41B
| $1.13M | ﹤0.01% |
30,605
+23,843
| +353% | +$878K |
|
257
PTC Therapeutics
PTCT
$4.57B
| $1.12M | ﹤0.01% |
23,895
+19,734
| +474% | +$927K |
|
258
Baker Hughes
BKR
$45.3B
| $1.11M | ﹤0.01% |
32,952
+11,023
| +50% | +$373K |
|
259
CACI
CACI
$10.4B
| $1.1M | ﹤0.01% |
+5,991
| New | +$1.1M |
|
260
Chefs' Warehouse
CHEF
$2.59B
| $1.1M | ﹤0.01% |
+30,347
| New | +$1.1M |
|
261
Hain Celestial
HAIN
$175M
| $1.09M | ﹤0.01% |
40,095
+17,932
| +81% | +$486K |
|
262
Viking Therapeutics
VKTX
$2.82B
| $1.09M | ﹤0.01% |
62,358
+47,404
| +317% | +$826K |
|
263
Advanced Energy
AEIS
$5.78B
| $1.08M | ﹤0.01% |
+21,005
| New | +$1.08M |
|
264
Funko
FNKO
$186M
| $1.08M | ﹤0.01% |
45,604
+37,188
| +442% | +$881K |
|
265
Incyte
INCY
$16.8B
| $1.07M | ﹤0.01% |
+15,552
| New | +$1.07M |
|
266
Tenet Healthcare
THC
$17B
| $1.07M | ﹤0.01% |
+37,646
| New | +$1.07M |
|
|
GRA
267
DELISTED
W.R. Grace & Co.
GRA
| $1.07M | ﹤0.01% |
14,999
-1,126
| -7% | -$80.4K |
|
268
Vornado Realty Trust
VNO
$7.7B
| $1.07M | ﹤0.01% |
14,664
+12,459
| +565% | +$909K |
|
269
PBF Energy
PBF
$3.54B
| $1.06M | ﹤0.01% |
21,326
-1,087
| -5% | -$54.2K |
|
270
Old Dominion Freight Line
ODFL
$31.3B
| $1.06M | ﹤0.01% |
19,689
+19,482
| +9,412% | +$1.05M |
|
271
Aon
AON
$79.3B
| $1.06M | ﹤0.01% |
+6,872
| New | +$1.06M |
|
272
Digital Realty Trust
DLR
$55.2B
| $1.05M | ﹤0.01% |
+9,340
| New | +$1.05M |
|
|
YRD
273
Yiren Digital
YRD
$494M
| $1.05M | ﹤0.01% |
+57,087
| New | +$1.05M |
|
274
Avis
CAR
$5.56B
| $1.04M | ﹤0.01% |
32,506
+26,268
| +421% | +$844K |
|
275
BlackBerry
BB
$2.28B
| $1.04M | ﹤0.01% |
91,401
+76,371
| +508% | +$869K |
|