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 |
Microsoft
MSFT
|
+$101M |
| 2 |
NVIDIA
NVDA
|
+$66M |
| 3 |
Citigroup
C
|
+$51.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$42.7M |
| 5 |
SPDR Gold Trust
GLD
|
+$39.4M |
Top Sells
| 1 |
Apple
AAPL
|
+$411M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$64M |
| 3 |
Meta Platforms (Facebook)
META
|
+$39.8M |
| 4 |
iShares Core S&P 500 ETF
IVV
|
+$34.3M |
| 5 |
PayPal
PYPL
|
+$32.9M |
Sector Composition
| 1 | Technology | 17.4% |
| 2 | Financials | 12.04% |
| 3 | Consumer Discretionary | 10.17% |
| 4 | Healthcare | 8.63% |
| 5 | Industrials | 6.03% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1576
PROG Holdings
PRG
$1.41B
| $32K | ﹤0.01% |
2,180
+2,130
| +4,260% | +$31.3K |
|
1577
United Parcel Service
UPS
$71.3B
| $32K | ﹤0.01% |
200
| – | – |
|
1578
Visteon
VC
$3.39B
| $32K | ﹤0.01% |
+310
| New | +$32K |
|
|
VCNX
1579
DELISTED
Vaccinex, Inc. Common Stock
VCNX
| $32K | ﹤0.01% |
317
+104
| +49% | +$10.5K |
|
|
SCU
1580
DELISTED
Sculptor Capital Management, Inc. Class A Common Stock
SCU
| $32K | ﹤0.01% |
3,700
-9,598
| -72% | -$83K |
|
|
MACK
1581
DELISTED
Merrimack Pharmaceuticals, Inc.
MACK
| $32K | ﹤0.01% |
8,692
-27,776
| -76% | -$102K |
|
1582
Banco Bilbao Vizcaya Argentaria
BBVA
$111B
| $31K | ﹤0.01% |
7,127
-27,161
| -79% | -$118K |
|
1583
BRF SA
BRFS
$6.18B
| $31K | ﹤0.01% |
13,398
+2,875
| +27% | +$6.65K |
|
1584
Salesforce
CRM
$232B
| $31K | ﹤0.01% |
216
+200
| +1,250% | +$28.7K |
|
1585
Essential Properties Realty Trust
EPRT
$5.92B
| $31K | ﹤0.01% |
1,633
-589
| -27% | -$11.2K |
|
1586
Forge Global Holdings
FRGE
$240M
| $31K | ﹤0.01% |
+1,199
| New | +$31K |
|
1587
Gladstone Capital
GLAD
$523M
| $31K | ﹤0.01% |
+1,845
| New | +$31K |
|
|
JMIA
1588
Jumia Technologies
JMIA
$1.46B
| $31K | ﹤0.01% |
5,499
-19,722
| -78% | -$111K |
|
1589
Karyopharm Therapeutics
KPTI
$48.8M
| $31K | ﹤0.01% |
388
-70
| -15% | -$5.59K |
|
|
OLO
1590
DELISTED
Olo Inc
OLO
| $31K | ﹤0.01% |
+3,986
| New | +$31K |
|
1591
Regenxbio
RGNX
$459M
| $31K | ﹤0.01% |
+1,186
| New | +$31K |
|
1592
Invesco S&P 500 Equal Weight Materials ETF
RSPM
$163M
| $31K | ﹤0.01% |
1,095
| – | – |
|
1593
Ryvyl
RVYL
$8.98M
| $31K | ﹤0.01% |
3,196
-587
| -16% | -$5.69K |
|
1594
Taboola.com
TBLA
$1.04B
| $31K | ﹤0.01% |
17,574
+2,490
| +17% | +$4.39K |
|
1595
UroGen Pharma
URGN
$849M
| $31K | ﹤0.01% |
3,845
+3,725
| +3,104% | +$30K |
|
|
ATIP
1596
DELISTED
ATI Physical Therapy, Inc.
ATIP
| $31K | ﹤0.01% |
621
+501
| +418% | +$25K |
|
1597
Archer Aviation
ACHR
$6.19B
| $30K | ﹤0.01% |
11,614
+168
| +1% | +$434 |
|
1598
American Woodmark
AMWD
$972M
| $30K | ﹤0.01% |
688
-3,021
| -81% | -$132K |
|
1599
Concrete Pumping Holdings
BBCP
$370M
| $30K | ﹤0.01% |
4,740
-10,282
| -68% | -$65.1K |
|
1600
Precision BioSciences
DTIL
$57.5M
| $30K | ﹤0.01% |
792
+252
| +47% | +$9.55K |
|