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
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1201
Marathon Digital Holdings
MARA
$6.04B
| $77K | ﹤0.01% |
39,456
+36,826
| +1,400% | +$71.9K |
|
1202
PennyMac Financial
PFSI
$6.44B
| $77K | ﹤0.01% |
+1,328
| New | +$77K |
|
1203
AdvisorShares Ranger Equity Bear ETF
HDGE
$50M
| $76K | ﹤0.01% |
1,695
+1,316
| +347% | +$59K |
|
1204
Harmony Gold Mining
HMY
$9.34B
| $76K | ﹤0.01% |
+14,432
| New | +$76K |
|
1205
Renaissance IPO ETF
IPO
$182M
| $76K | ﹤0.01% |
1,468
+665
| +83% | +$34.4K |
|
1206
Portland General Electric
POR
$4.66B
| $76K | ﹤0.01% |
2,141
-82
| -4% | -$2.91K |
|
1207
ProPetro Holding
PUMP
$484M
| $76K | ﹤0.01% |
+18,918
| New | +$76K |
|
1208
Rigel Pharmaceuticals
RIGL
$681M
| $76K | ﹤0.01% |
+3,199
| New | +$76K |
|
1209
Starwood Property Trust
STWD
$7.52B
| $76K | ﹤0.01% |
5,051
-32,558
| -87% | -$490K |
|
|
ZEPP
1210
Zepp Health
ZEPP
$727M
| $76K | ﹤0.01% |
+1,490
| New | +$76K |
|
|
NBEV
1211
DELISTED
NewAge, Inc. Common Stock (Delaware)
NBEV
| $76K | ﹤0.01% |
44,334
+19,939
| +82% | +$34.2K |
|
1212
ING
ING
$74.7B
| $75K | ﹤0.01% |
+10,697
| New | +$75K |
|
|
CCMP
1213
DELISTED
CMC Materials, Inc. Common Stock
CCMP
| $75K | ﹤0.01% |
528
+32
| +6% | +$4.55K |
|
|
CHX
1214
DELISTED
ChampionX
CHX
| $74K | ﹤0.01% |
+9,279
| New | +$74K |
|
1215
JFrog
FROG
$5.83B
| $74K | ﹤0.01% |
+878
| New | +$74K |
|
1216
Grifois
GRFS
$6.72B
| $74K | ﹤0.01% |
4,266
+3,670
| +616% | +$63.7K |
|
1217
Mistras Group
MG
$299M
| $74K | ﹤0.01% |
+18,977
| New | +$74K |
|
1218
Weis Markets
WMK
$1.75B
| $74K | ﹤0.01% |
1,543
-4,147
| -73% | -$199K |
|
|
HMSY
1219
DELISTED
HMS Holdings Corp.
HMSY
| $74K | ﹤0.01% |
+3,129
| New | +$74K |
|
1220
CNO Financial Group
CNO
$3.8B
| $73K | ﹤0.01% |
4,561
+3,165
| +227% | +$50.7K |
|
|
ALEX
1221
Alexander & Baldwin
ALEX
$1.34B
| $72K | ﹤0.01% |
6,479
+3,258
| +101% | +$36.2K |
|
1222
Alpha and Omega Semiconductor
AOSL
$853M
| $72K | ﹤0.01% |
5,630
-8,919
| -61% | -$114K |
|
1223
Arlo Technologies
ARLO
$1.82B
| $72K | ﹤0.01% |
13,712
-2,473
| -15% | -$13K |
|
|
WSR
1224
Whitestone REIT
WSR
$664M
| $72K | ﹤0.01% |
12,089
+10,868
| +890% | +$64.7K |
|
|
NKLA
1225
DELISTED
Nikola Corporation Common Stock
NKLA
| $72K | ﹤0.01% |
118
+101
| +594% | +$61.6K |
|