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1W flows -$6.00B
1W flows +$3.01B
1W flows -$1.23B
1W flows +$1.40B
1W flows +$1.52B
1W flows +$305M
1W flows -$86M
1W flows -$258M
1W flows +$3.13B
1W flows +$1.89B
1W flows +$1.28B
1W flows -$747M
1W flows +$1.83B
1W flows +$148M
1W flows +$9M
1W flows +$241M
Last update: Today 5:15 PM
1W flows -$6.00B
1W flows +$3.01B
1W flows -$1.23B
1W flows +$1.40B
1W flows +$1.52B
1W flows +$305M
1W flows -$86M
1W flows -$258M
1W flows +$3.13B
1W flows +$1.89B
1W flows +$1.28B
1W flows -$747M
1W flows +$1.83B
1W flows +$148M
1W flows +$9M
1W flows +$241M
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With the 10-year Treasury yield reaching 5%, these bond ETFs offer investors direct exposure to intermediate-term U.S. government debt.
The Weekly ETF Market Monitor (September 14-18, 2026)
A comprehensive snapshot of U.S. ETF market activity in Week 38 (September 14-18, 2026), spanning flows, performance, sector and thematic trends, geographic exposures, asset classes, and leading funds and issuers.
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Four-Pillar Portfolio
The Four Pillar Strategy is a passive investment model designed to capture global market returns efficiently and at minimal cost. By focusing on four distinct, non-correlated asset classes, this portfolio provides a framework for long-term capital appreciation and inflation protection. The strategy rests on four pillars: Total US Equities, International Stocks, Total Bond Market, and Real Estate Investment Trusts (REITs). The addition of REITs offers an additional layer of diversification.
by ETF CentralBalanced 60/40 Portfolio
Built on the foundational principles of diversification, this model allocates 60% of capital to equities for long-term growth and 40% to fixed-income securities to provide a defensive cushion and steady income. Investors have utilized the 60/40 investment strategy to navigate diverse market cycles. The equity portion captures the upside of economic expansion and corporate earnings. Conversely, the bond component acts as a stabalizer. This synergy aims to optimize risk-adjusted returns.
by ETF CentralEndowment Model
The Yale Endowment Model, pioneered by David Swensen, moves beyond the traditional 60/40 portfolio by emphasizing a diversification into other asset classes, designed to generate equity-like returns with reduced systemic risk. This model prioritizes broad-market exposure while allocating a significant portion to Real Estate (REITs) and inflation-sensitive assets. The fixed-income component is strategically split between Intermediate Treasuries and Treasury Inflation-Protected Securities (TIPS).
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Dave O'Donohue of Calamos Investments discusses how CHDG brings the firm's decades of dynamic hedging experience into an actively managed ETF built for a changing market environment.
Kenneth Wong, CIO and Co-Founder of xETFs, discusses the firm's approach to ETF innovation and how the xETFs Korea AI Semiconductor ETF (KSMH) targets the broader ecosystem behind the AI-driven memory upcycle.
Kristof Gleich explains why AI is moving beyond a technology theme and emerging as a new framework for investing across the ecosystems reshaping the global economy.
With the 10-year Treasury yield reaching 5%, these bond ETFs offer investors direct exposure to intermediate-term U.S. government debt.
Today’s ETF comparison pits two of the most popular S&P 500 option income ETFs head-to-head.
University endowment ETFs aim to bring the diversified, alternative-heavy investment strategies used by major institutions into a portfolio accessible to everyday investors.
More topics
See all topicsWhy the Time of Day Matters When Trading an ETF
An ETF may trade from 9:30 a.m. to 4:00 p.m., but that doesn’t mean every minute of the trading day is created equal.
Trump Accounts: Here's Which ETFs You Can Invest In
Learn which are available within a Trump Account and how to build a low-cost, diversified investment portfolio within the program's rules.
The ETF Underdogs, Part 9: Wide Moats and Competitive Advantages
New ETF issuers are bringing active approaches to the timeless concept of economic moats, offering investors another way to target businesses with durable competitive advantages.
ETFs Versus CEFs: What’s the Difference?
For investors, there can be significant disparities in terms of fees, leverage, distributions, and liquidity.
Calamos Autocallable Growth ETF (CAGE): The Next Evolution of Structured Products
Calamos expands its auto-callable lineup with CAGE, a growth-focused ETF that brings structured product exposure into a more accessible, ETF-based format.
Movers & Shakers
Segments
ETFs
Issuers
| Best performance, 1 week | 1W perf. | YTD perf. |
|---|---|---|
| Cryptocurrency | +11.65% | -0.58% |
| BioTech & Genomics | +11.37% | +65.25% |
| Cybersecurity | +7.64% | +43.19% |
| Next Generation Internet | +5.76% | +14.67% |
| Multiple Trends | +4.94% | +25.63% |
| Worst performance, 1 week | 1W perf. | YTD perf. |
|---|---|---|
| US Energy | -3.86% | +42.56% |
| US Utilities | -3.32% | -2.82% |
| US Materials | -2.59% | +10.84% |
| Energy | -2.33% | +99.17% |
| Natural Resources | -2.26% | +14.19% |
| Most inflows, 1 week | 1W flow | YTD flows |
|---|---|---|
| Money Market Bonds | +$4.11B | +$95.12B |
| Municipal Bonds | +$4.07B | +$48.98B |
| US All Cap | +$3.24B | +$64.57B |
| US Aggregate Bonds | +$3.13B | +$91.92B |
| US Mid Cap | +$3.01B | +$23.26B |
| Most outflows, 1 week | 1W flow | YTD flows |
|---|---|---|
| US Large Cap | -$6.00B | +$243.47B |
| US Financials | -$2.53B | -$4.76B |
| EM Large & Mid Cap | -$1.43B | +$21.36B |
| US Small Cap | -$1.23B | -$4.29B |
| US Corporate HY Bonds | -$747M | +$4.61B |
Data period: September 14 - 21, 2026
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Advantages of ETFs over Mutual Funds1/6
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