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 | |
|---|---|---|---|---|---|---|
901
Hudbay
HBM
$5.37B
| $158K | ﹤0.01% |
33,052
+5,910
| +22% | +$28.3K |
|
902
Lufax Holding
LU
$2.62B
| $158K | ﹤0.01% |
+27,753
| New | +$158K |
|
903
American Axle
AXL
$718M
| $156K | ﹤0.01% |
18,948
-3,233
| -15% | -$26.6K |
|
904
Evercore
EVR
$13.3B
| $156K | ﹤0.01% |
1,269
+754
| +146% | +$92.7K |
|
905
Solid Power
SLDP
$667M
| $155K | ﹤0.01% |
61,191
-79,037
| -56% | -$200K |
|
906
Herc Holdings
HRI
$4.29B
| $154K | ﹤0.01% |
1,126
-1,809
| -62% | -$247K |
|
907
Sealed Air
SEE
$4.99B
| $154K | ﹤0.01% |
+3,858
| New | +$154K |
|
908
Cerence
CRNC
$426M
| $153K | ﹤0.01% |
5,250
-2,153
| -29% | -$62.7K |
|
909
Sundial Growers
SNDL
$615M
| $153K | ﹤0.01% |
111,988
+22,904
| +26% | +$31.3K |
|
|
ITOS
910
DELISTED
iTeos Therapeutics
ITOS
| $152K | ﹤0.01% |
11,503
+9,463
| +464% | +$125K |
|
911
Madison Square Garden
MSGE
$2.06B
| $151K | ﹤0.01% |
+4,494
| New | +$151K |
|
912
Sportradar
SRAD
$8.88B
| $151K | ﹤0.01% |
11,719
+9,239
| +373% | +$119K |
|
|
SP
913
DELISTED
SP Plus Corporation
SP
| $151K | ﹤0.01% |
3,878
-638
| -14% | -$24.8K |
|
914
Cellebrite
CLBT
$4.2B
| $150K | ﹤0.01% |
20,960
-9,985
| -32% | -$71.5K |
|
915
PureCycle Technologies
PCT
$2.4B
| $149K | ﹤0.01% |
13,966
-162,664
| -92% | -$1.74M |
|
916
Yum China
YUMC
$16.5B
| $149K | ﹤0.01% |
+2,643
| New | +$149K |
|
917
International Seaways
INSW
$2.32B
| $148K | ﹤0.01% |
3,893
+2,106
| +118% | +$80.1K |
|
918
Simon Property Group
SPG
$60B
| $148K | ﹤0.01% |
+1,289
| New | +$148K |
|
|
FRC
919
DELISTED
First Republic Bank
FRC
| $148K | ﹤0.01% |
270,600
+268,700
| +14,142% | +$147K |
|
920
MannKind Corp
MNKD
$1.66B
| $147K | ﹤0.01% |
+36,211
| New | +$147K |
|
921
Warby Parker
WRBY
$3.36B
| $147K | ﹤0.01% |
12,594
-882
| -7% | -$10.3K |
|
922
Jack Henry & Associates
JKHY
$11.8B
| $146K | ﹤0.01% |
+875
| New | +$146K |
|
923
UFP Industries
UFPI
$6B
| $145K | ﹤0.01% |
1,500
+410
| +38% | +$39.6K |
|
924
Noble Corp
NE
$4.85B
| $144K | ﹤0.01% |
+3,505
| New | +$144K |
|
925
TORM
TRMD
$2.16B
| $144K | ﹤0.01% |
5,972
-4,229
| -41% | -$102K |
|