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 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$16.3M |
| 3 |
Walt Disney
DIS
|
+$13.9M |
| 4 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.4M |
| 5 |
Gilead Sciences
GILD
|
+$10.4M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
+$95.3M |
| 2 |
Apple
AAPL
|
+$21.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$20M |
| 4 |
IBM
IBM
|
+$13.4M |
| 5 |
Baidu
BIDU
|
+$12.1M |
Sector Composition
| 1 | Healthcare | 13.63% |
| 2 | Communication Services | 9.81% |
| 3 | Consumer Discretionary | 9.7% |
| 4 | Technology | 9.67% |
| 5 | Financials | 9.48% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1701
Harmony Gold Mining
HMY
$9.38B
| $1K | ﹤0.01% |
2,388
+1,102
| +86% | +$461 |
|
1702
HealthEquity
HQY
$8.04B
| $1K | ﹤0.01% |
+35
| New | +$1K |
|
1703
Healthcare Realty
HR
$6.37B
| $1K | ﹤0.01% |
+59
| New | +$1K |
|
1704
Heartland Express
HTLD
$657M
| $1K | ﹤0.01% |
61
-1,845
| -97% | -$30.2K |
|
1705
Integra LifeSciences
IART
$1.15B
| $1K | ﹤0.01% |
+40
| New | +$1K |
|
1706
Itron
ITRI
$5.47B
| $1K | ﹤0.01% |
+43
| New | +$1K |
|
1707
KBR
KBR
$6.31B
| $1K | ﹤0.01% |
+72
| New | +$1K |
|
1708
KVH Industries
KVHI
$122M
| $1K | ﹤0.01% |
100
| – | – |
|
1709
LSB Industries
LXU
$596M
| $1K | ﹤0.01% |
121
+14
| +13% | +$116 |
|
1710
Mercer International
MERC
$206M
| $1K | ﹤0.01% |
+155
| New | +$1K |
|
1711
Magnite
MGNI
$3.34B
| $1K | ﹤0.01% |
+81
| New | +$1K |
|
1712
Quanex
NX
$694M
| $1K | ﹤0.01% |
83
-5,340
| -98% | -$64.3K |
|
1713
Orion Energy Systems
OESX
$32.2M
| $1K | ﹤0.01% |
110
-284
| -72% | -$2.58K |
|
1714
ON Semiconductor
ON
$19.5B
| $1K | ﹤0.01% |
+191
| New | +$1K |
|
1715
OraSure Technologies
OSUR
$239M
| $1K | ﹤0.01% |
436
-2,496
| -85% | -$5.73K |
|
1716
Palisade Bio
PALI
$5.54M
| – | – |
0
| – | -$17K |
|
1717
Pure Cycle
PCYO
$269M
| $1K | ﹤0.01% |
+300
| New | +$1K |
|
1718
PetMed Express
PETS
$58.9M
| $1K | ﹤0.01% |
+67
| New | +$1K |
|
1719
Progress Software
PRGS
$1.8B
| $1K | ﹤0.01% |
+63
| New | +$1K |
|
1720
Primerica
PRI
$8.83B
| $1K | ﹤0.01% |
+44
| New | +$1K |
|
1721
Performance Shipping
PSHG
$24M
| – | – |
0
| – | -$3K |
|
1722
Rollins
ROL
$27.4B
| $1K | ﹤0.01% |
108
-117
| -52% | -$1.08K |
|
1723
Global X Social Media ETF
SOCL
$158M
| $1K | ﹤0.01% |
+67
| New | +$1K |
|
|
SOL
1724
Emeren Group
SOL
$97.5M
| $1K | ﹤0.01% |
339
-2,171
| -86% | -$6.4K |
|
1725
STAG Industrial
STAG
$6.72B
| $1K | ﹤0.01% |
+77
| New | +$1K |
|