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
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
PENG
1051
Penguin Solutions, Inc. Ordinary Shares
PENG
$1.36B
| $95K | ﹤0.01% |
6,402
+5,956
| +1,335% | +$88.4K |
|
|
LGF.A
1052
DELISTED
Lions Gate Entertainment Corp. Class A Voting Shares
LGF.A
| $95K | ﹤0.01% |
16,788
-2,807
| -14% | -$15.9K |
|
|
THCX
1053
DELISTED
AXS Cannabis ETF
THCX
| $95K | ﹤0.01% |
3,682
-150
| -4% | -$3.87K |
|
1054
Brookdale Senior Living
BKD
$1.78B
| $94K | ﹤0.01% |
34,745
+4,242
| +14% | +$11.5K |
|
|
CGAU
1055
Centerra Gold
CGAU
$1.88B
| $94K | ﹤0.01% |
18,311
-2,821
| -13% | -$14.5K |
|
1056
Liberty Global Class C
LBTYK
$4.07B
| $94K | ﹤0.01% |
+4,876
| New | +$94K |
|
|
SCU
1057
DELISTED
Sculptor Capital Management, Inc. Class A Common Stock
SCU
| $94K | ﹤0.01% |
10,882
+7,182
| +194% | +$62K |
|
1058
CareDx
CDNA
$720M
| $93K | ﹤0.01% |
8,163
+7,917
| +3,218% | +$90.2K |
|
1059
Enviri
NVRI
$983M
| $93K | ﹤0.01% |
14,937
+41
| +0.3% | +$255 |
|
|
SAFE
1060
Safehold
SAFE
$1.18B
| $93K | ﹤0.01% |
+1,951
| New | +$93K |
|
1061
Clene
CLNN
$57.9M
| $92K | ﹤0.01% |
4,615
-2,006
| -30% | -$40K |
|
1062
Designer Brands
DBI
$225M
| $92K | ﹤0.01% |
9,422
+6,343
| +206% | +$61.9K |
|
1063
Senseonics Holdings
SENS
$375M
| $92K | ﹤0.01% |
90,137
+83,810
| +1,325% | +$85.5K |
|
|
MTA
1064
Metalla Royalty & Streaming
MTA
$527M
| $91K | ﹤0.01% |
18,681
+9,943
| +114% | +$48.4K |
|
1065
iShares MSCI Global Metals & Mining Producers ETF
PICK
$841M
| $91K | ﹤0.01% |
2,234
+325
| +17% | +$13.2K |
|
1066
PolyPid
PYPD
$55.2M
| $91K | ﹤0.01% |
4,358
+1,527
| +54% | +$31.9K |
|
1067
Omeros
OMER
$282M
| $90K | ﹤0.01% |
40,148
+10,276
| +34% | +$23K |
|
1068
Shenandoah Telecom
SHEN
$744M
| $90K | ﹤0.01% |
5,682
+5,172
| +1,014% | +$81.9K |
|
1069
Direxion Daily Dow Jones Internet Bull 3X Shares
WEBL
$156M
| $90K | ﹤0.01% |
15,907
+10,140
| +176% | +$57.4K |
|
1070
APi Group
APG
$14.5B
| $89K | ﹤0.01% |
+7,167
| New | +$89K |
|
1071
BioAtla
BCAB
$45.5M
| $89K | ﹤0.01% |
10,824
+8,565
| +379% | +$70.4K |
|
1072
Capital Southwest
CSWC
$1.27B
| $89K | ﹤0.01% |
+5,222
| New | +$89K |
|
1073
iShares US Regional Banks ETF
IAT
$651M
| $89K | ﹤0.01% |
+1,880
| New | +$89K |
|
1074
InflaRx
IFRX
$85.4M
| $89K | ﹤0.01% |
28,890
+22,437
| +348% | +$69.1K |
|
1075
ProShares Ultra Energy
DIG
$71.4M
| $88K | ﹤0.01% |
2,082
-2,692
| -56% | -$114K |
|