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 |
NVIDIA
NVDA
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
826
Playboy, Inc. Common Stock
PLBY
$189M
| $198K | ﹤0.01% |
118,443
+35,673
| +43% | +$59.6K |
|
827
Costamare
CMRE
$1.46B
| $197K | ﹤0.01% |
20,416
-21,940
| -52% | -$212K |
|
828
Direxion Daily Junior Gold Miners Index Bull 2X Shares
JNUG
$515M
| $197K | ﹤0.01% |
6,041
-10,623
| -64% | -$346K |
|
829
Arteris
AIP
$378M
| $196K | ﹤0.01% |
28,883
+28,754
| +22,290% | +$195K |
|
830
iShares US Technology ETF
IYW
$23.9B
| $194K | ﹤0.01% |
+1,785
| New | +$194K |
|
831
Cognyte Software
CGNT
$630M
| $193K | ﹤0.01% |
31,800
-253,351
| -89% | -$1.54M |
|
832
CureVac
CVAC
$1.21B
| $193K | ﹤0.01% |
18,618
+13,543
| +267% | +$140K |
|
833
FuelCell Energy
FCEL
$199M
| $193K | ﹤0.01% |
+2,990
| New | +$193K |
|
834
Wolverine World Wide
WWW
$2.53B
| $193K | ﹤0.01% |
+13,185
| New | +$193K |
|
835
Selective Insurance
SIGI
$4.79B
| $192K | ﹤0.01% |
2,006
+178
| +10% | +$17K |
|
|
CIO
836
City Office REIT
CIO
$280M
| $191K | ﹤0.01% |
34,391
+32,284
| +1,532% | +$179K |
|
837
Direxion Daily FTSE China Bear 3X Shares
YANG
$161M
| $191K | ﹤0.01% |
873
-4,504
| -84% | -$985K |
|
838
BRC Inc
BRCC
$190M
| $190K | ﹤0.01% |
+37,014
| New | +$190K |
|
|
PBT
839
Permian Basin Royalty Trust
PBT
$843M
| $189K | ﹤0.01% |
7,584
-16,890
| -69% | -$421K |
|
840
WisdomTree Artificial Intelligence and Innovation Fund
WTAI
$298M
| $189K | ﹤0.01% |
9,953
+9,918
| +28,337% | +$188K |
|
841
MicroSectors FANG+ ETNs due Jan 8 2038
FNGS
$520M
| $188K | ﹤0.01% |
5,597
+4,959
| +777% | +$167K |
|
|
SJT
842
San Juan Basin Royalty Trust
SJT
$271M
| $188K | ﹤0.01% |
+25,413
| New | +$188K |
|
|
SWN
843
DELISTED
Southwestern Energy Company
SWN
| $188K | ﹤0.01% |
+31,289
| New | +$188K |
|
|
DICE
844
DELISTED
DICE Therapeutics, Inc. Common Stock
DICE
| $188K | ﹤0.01% |
4,062
-3,915
| -49% | -$181K |
|
845
American Resources Corp
AREC
$176M
| $187K | ﹤0.01% |
95,790
-95,948
| -50% | -$187K |
|
846
Murphy Oil
MUR
$3.67B
| $187K | ﹤0.01% |
+4,905
| New | +$187K |
|
847
Magna International
MGA
$13.2B
| $186K | ﹤0.01% |
3,298
-8,674
| -72% | -$489K |
|
|
MTLS
848
Materialise
MTLS
$304M
| $186K | ﹤0.01% |
21,584
-8,247
| -28% | -$71.1K |
|
849
Nabors Industries
NBR
$620M
| $186K | ﹤0.01% |
2,010
-700
| -26% | -$64.8K |
|
|
CUTR
850
DELISTED
Cutera, Inc.
CUTR
| $186K | ﹤0.01% |
12,346
-37,148
| -75% | -$560K |
|