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 |
Apple
AAPL
|
+$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$82.5M |
| 3 |
Intel
INTC
|
+$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
+$39.4M |
| 5 |
Uber
UBER
|
+$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$130M |
| 2 |
Pinduoduo
PDD
|
+$95.7M |
| 3 |
Boeing
BA
|
+$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$40.7M |
| 5 |
Microsoft
MSFT
|
+$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
SW
1001
Smurfit Westrock plc
SW
$23.6B
| $175K | ﹤0.01% |
3,261
+827
| +34% | +$44.4K |
|
1002
Schrodinger
SDGR
$1.34B
| $174K | ﹤0.01% |
9,068
+2,150
| +31% | +$41.3K |
|
1003
US Bancorp
USB
$76.6B
| $174K | ﹤0.01% |
+3,646
| New | +$174K |
|
1004
Global X Cybersecurity ETF
BUG
$1.12B
| $173K | ﹤0.01% |
5,415
-13,818
| -72% | -$441K |
|
1005
Tredegar Corp
TG
$271M
| $173K | ﹤0.01% |
22,615
-29,649
| -57% | -$227K |
|
|
LGF.B
1006
DELISTED
Lions Gate Entertainment Corp. Class B Non-Voting Shares
LGF.B
| $173K | ﹤0.01% |
23,021
+1,818
| +9% | +$13.7K |
|
|
SRTA
1007
Strata Critical Medical, Inc. Class A Common Stock
SRTA
$326M
| $172K | ﹤0.01% |
40,565
+13,611
| +50% | +$57.7K |
|
1008
Guidewire Software
GWRE
$21.3B
| $172K | ﹤0.01% |
+1,026
| New | +$172K |
|
|
SLSR
1009
Solaris Resources
SLSR
$872M
| $172K | ﹤0.01% |
55,571
+40,611
| +271% | +$126K |
|
1010
Ondas Holdings
ONDS
$1.55B
| $171K | ﹤0.01% |
67,070
+66,402
| +9,940% | +$169K |
|
1011
Televisa
TV
$1.48B
| $170K | ﹤0.01% |
+101,517
| New | +$170K |
|
1012
Babcock & Wilcox
BW
$266M
| $169K | ﹤0.01% |
103,076
+75,391
| +272% | +$124K |
|
1013
Cooper Companies
COO
$13.5B
| $169K | ﹤0.01% |
1,846
-683
| -27% | -$62.5K |
|
1014
American Coastal Insurance
ACIC
$526M
| $168K | ﹤0.01% |
12,536
-4,508
| -26% | -$60.4K |
|
1015
Euronet Worldwide
EEFT
$3.57B
| $168K | ﹤0.01% |
1,643
+1,116
| +212% | +$114K |
|
1016
Trinity Capital
TRIN
$1.13B
| $168K | ﹤0.01% |
+11,646
| New | +$168K |
|
1017
Ares Management
ARES
$39.3B
| $167K | ﹤0.01% |
+946
| New | +$167K |
|
|
LAR
1018
Lithium Argentina AG
LAR
$513M
| $167K | ﹤0.01% |
64,055
+42,355
| +195% | +$110K |
|
1019
European Wax Center
EWCZ
$161M
| $166K | ﹤0.01% |
+24,901
| New | +$166K |
|
|
HIVE
1020
HIVE Digital Technologies
HIVE
$716M
| $166K | ﹤0.01% |
58,589
-54,626
| -48% | -$155K |
|
1021
Morgan Stanley Direct Lending Fund
MSDL
$1.54B
| $166K | ﹤0.01% |
8,064
+3,112
| +63% | +$64.1K |
|
1022
Perion Network
PERI
$415M
| $166K | ﹤0.01% |
+19,608
| New | +$166K |
|
|
ALLK
1023
DELISTED
Allakos
ALLK
| $165K | ﹤0.01% |
136,848
+41,175
| +43% | +$49.6K |
|
1024
Goldman Sachs BDC
GSBD
$1.29B
| $165K | ﹤0.01% |
+13,680
| New | +$165K |
|
|
LSEA
1025
DELISTED
Landsea Homes
LSEA
| $165K | ﹤0.01% |
+19,545
| New | +$165K |
|