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 | |
|---|---|---|---|---|---|---|
|
LOMA
1476
Loma Negra
LOMA
$888M
| $24K | ﹤0.01% |
2,796
-8,825
| -76% | -$75.8K |
|
1477
Mitek Systems
MITK
$467M
| $24K | ﹤0.01% |
3,439
-5,601
| -62% | -$39.1K |
|
|
RAVN
1478
DELISTED
Raven Industries Inc
RAVN
| $24K | ﹤0.01% |
+543
| New | +$24K |
|
|
EMES
1479
DELISTED
Emerge Energy Services LP
EMES
| $24K | ﹤0.01% |
6,144
+84
| +1% | +$328 |
|
|
COWN
1480
DELISTED
Cowen Inc. Class A Common Stock
COWN
| $24K | ﹤0.01% |
1,492
+1,306
| +702% | +$21K |
|
|
HR
1481
DELISTED
Healthcare Realty Trust Incorporated
HR
| $24K | ﹤0.01% |
+826
| New | +$24K |
|
|
BTCM
1482
BIT Mining
BTCM
$53.2M
| $23K | ﹤0.01% |
+210
| New | +$23K |
|
1483
Crown Holdings
CCK
$11.2B
| $23K | ﹤0.01% |
486
-11,462
| -96% | -$542K |
|
1484
Karyopharm Therapeutics
KPTI
$55.9M
| $23K | ﹤0.01% |
+92
| New | +$23K |
|
1485
Eli Lilly
LLY
$677B
| $23K | ﹤0.01% |
+218
| New | +$23K |
|
1486
Matrix Service
MTRX
$353M
| $23K | ﹤0.01% |
+952
| New | +$23K |
|
1487
Natural Resource Partners
NRP
$1.34B
| $23K | ﹤0.01% |
749
-1,188
| -61% | -$36.5K |
|
1488
Option Care Health
OPCH
$4.62B
| $23K | ﹤0.01% |
1,934
+1,042
| +117% | +$12.4K |
|
1489
Teleflex
TFX
$5.76B
| $23K | ﹤0.01% |
90
+7
| +8% | +$1.79K |
|
1490
Vanguard Russell 2000 ETF
VTWO
$12.8B
| $23K | ﹤0.01% |
348
+78
| +29% | +$5.16K |
|
1491
Vanguard Large-Cap ETF
VV
$45.3B
| $23K | ﹤0.01% |
+177
| New | +$23K |
|
1492
Westamerica Bancorp
WABC
$1.24B
| $23K | ﹤0.01% |
397
-848
| -68% | -$49.1K |
|
|
EQC
1493
DELISTED
Equity Commonwealth
EQC
| $23K | ﹤0.01% |
721
-244
| -25% | -$7.78K |
|
|
VNE
1494
DELISTED
Veoneer, Inc.
VNE
| $23K | ﹤0.01% |
+424
| New | +$23K |
|
1495
Aegon
AEG
$12.2B
| $22K | ﹤0.01% |
4,008
+3,367
| +525% | +$18.5K |
|
1496
Alamos Gold
AGI
$13.9B
| $22K | ﹤0.01% |
4,973
-46,211
| -90% | -$204K |
|
1497
Santander
BSBR
$40.1B
| $22K | ﹤0.01% |
2,687
-666
| -20% | -$5.45K |
|
1498
iShares MSCI Indonesia ETF
EIDO
$337M
| $22K | ﹤0.01% |
+1,000
| New | +$22K |
|
1499
Forte Biosciences
FBRX
$131M
| $22K | ﹤0.01% |
+4
| New | +$22K |
|
1500
Kopin
KOPN
$412M
| $22K | ﹤0.01% |
9,150
+3,700
| +68% | +$8.9K |
|