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
|
+$216M |
| 2 |
Apple
AAPL
|
+$159M |
| 3 |
Broadcom
AVGO
|
+$128M |
| 4 |
Booking.com
BKNG
|
+$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
+$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$141M |
| 2 |
Amazon
AMZN
|
+$53.1M |
| 3 |
TSMC
TSM
|
+$45.7M |
| 4 |
Netflix
NFLX
|
+$45.3M |
| 5 |
Pfizer
PFE
|
+$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1076
American Century US Quality Growth ETF
QGRO
$1.97B
| $134K | ﹤0.01% |
+1,236
| New | +$134K |
|
1077
Sprott Junior Uranium Miners ETF
URNJ
$352M
| $134K | ﹤0.01% |
+6,384
| New | +$134K |
|
1078
Vestis
VSTS
$575M
| $134K | ﹤0.01% |
+23,428
| New | +$134K |
|
1079
Direxion Daily 7-10 Year Treasury Bull 3X Shares
TYD
$52.1M
| $133K | ﹤0.01% |
5,279
+2,320
| +78% | +$58.5K |
|
1080
Chord Energy
CHRD
$6B
| $132K | ﹤0.01% |
1,363
-1,550
| -53% | -$150K |
|
1081
RF Industries
RFIL
$91.1M
| $132K | ﹤0.01% |
+20,514
| New | +$132K |
|
1082
Atomera
ATOM
$103M
| $130K | ﹤0.01% |
25,941
-16,059
| -38% | -$80.5K |
|
1083
Krispy Kreme
DNUT
$539M
| $130K | ﹤0.01% |
44,981
+10,684
| +31% | +$30.9K |
|
1084
First Trust Natural Gas ETF
FCG
$332M
| $130K | ﹤0.01% |
5,655
-16,896
| -75% | -$388K |
|
1085
National Health Investors
NHI
$3.76B
| $130K | ﹤0.01% |
+1,854
| New | +$130K |
|
1086
Heron Therapeutics
HRTX
$196M
| $129K | ﹤0.01% |
+62,460
| New | +$129K |
|
|
PBT
1087
Permian Basin Royalty Trust
PBT
$840M
| $129K | ﹤0.01% |
10,384
-53,295
| -84% | -$662K |
|
1088
Cracker Barrel
CBRL
$1.16B
| $128K | ﹤0.01% |
2,105
-14,773
| -88% | -$898K |
|
1089
Cricut
CRCT
$1.38B
| $128K | ﹤0.01% |
18,995
+13,095
| +222% | +$88.2K |
|
1090
StoneX
SNEX
$5.14B
| $128K | ﹤0.01% |
1,415
+793
| +127% | +$71.7K |
|
1091
ICL Group
ICL
$7.99B
| $127K | ﹤0.01% |
18,519
-9,265
| -33% | -$63.5K |
|
1092
E.W. Scripps
SSP
$257M
| $127K | ﹤0.01% |
43,529
+30,769
| +241% | +$89.8K |
|
1093
Dyne Therapeutics
DYN
$1.88B
| $126K | ﹤0.01% |
13,247
+4,452
| +51% | +$42.3K |
|
|
MTA
1094
Metalla Royalty & Streaming
MTA
$540M
| $126K | ﹤0.01% |
32,824
+19,401
| +145% | +$74.5K |
|
1095
Neuronetics
STIM
$229M
| $126K | ﹤0.01% |
36,193
-680
| -2% | -$2.37K |
|
1096
Cincinnati Financial
CINF
$24.5B
| $125K | ﹤0.01% |
845
-84
| -9% | -$12.4K |
|
1097
Fidelity National Financial
FNF
$16.5B
| $125K | ﹤0.01% |
+2,244
| New | +$125K |
|
1098
Direxion Daily Retail Bull 3X Shares
RETL
$40.9M
| $125K | ﹤0.01% |
16,566
+15,096
| +1,027% | +$114K |
|
1099
American Battery Technology Co
ABAT
$221M
| $124K | ﹤0.01% |
+76,800
| New | +$124K |
|
1100
Conduent
CNDT
$458M
| $124K | ﹤0.01% |
47,137
-13,164
| -22% | -$34.6K |
|