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1W flows -$6.43B
1W flows +$902M
1W flows +$1.74B
1W flows +$1.47B
1W flows +$1.86B
1W flows +$903M
1W flows +$142M
1W flows -$85M
1W flows +$2.22B
1W flows +$3.12B
1W flows +$233M
1W flows -$777M
1W flows +$131M
1W flows +$169M
1W flows -$83M
1W flows +$212M
Last update: Today 5:04 PM
1W flows -$6.43B
1W flows +$902M
1W flows +$1.74B
1W flows +$1.47B
1W flows +$1.86B
1W flows +$903M
1W flows +$142M
1W flows -$85M
1W flows +$2.22B
1W flows +$3.12B
1W flows +$233M
1W flows -$777M
1W flows +$131M
1W flows +$169M
1W flows -$83M
1W flows +$212M
A comprehensive snapshot of U.S. ETF market activity in Week 37 (September 7-11, 2026), spanning flows, performance, sector and thematic trends, geographic exposures, asset classes, and leading funds and issuers.

University endowment ETFs aim to bring the diversified, alternative-heavy investment strategies used by major institutions into a portfolio accessible to everyday investors.

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.
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.
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.


University endowment ETFs aim to bring the diversified, alternative-heavy investment strategies used by major institutions into a portfolio accessible to everyday investors.


Thematic water ETFs could offer another way to invest in the infrastructure constraints emerging from the rapid buildout of AI data centers.


“Boomer candy” ETFs sell a simple promise: more income, less volatility. These two funds show what that looks like in practice.

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.

Learn which are available within a Trump Account and how to build a low-cost, diversified investment portfolio within the program's rules.

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.

For investors, there can be significant disparities in terms of fees, leverage, distributions, and liquidity.

Calamos expands its auto-callable lineup with CAGE, a growth-focused ETF that brings structured product exposure into a more accessible, ETF-based format.

Segments
ETFs
Issuers
| Best performance, 1 week | 1W perf. | YTD perf. |
|---|---|---|
| Energy | +7.40% | +106.54% |
| US Communication Services Sector | +2.63% | +0.06% |
| Multi-Commodity | +2.50% | +43.17% |
| Cybersecurity | +1.71% | +36.29% |
| Volatility | +1.34% | -8.51% |
| Worst performance, 1 week | 1W perf. | YTD perf. |
|---|---|---|
| Niche Commodity | -6.39% | +74.99% |
| Alternative Energy | -5.67% | +1.20% |
| Metal ex-Gold | -5.63% | -10.41% |
| Tomorrow's Treatments | -4.85% | +18.96% |
| US Materials | -4.70% | +12.00% |
| Most inflows, 1 week | 1W flow | YTD flows |
|---|---|---|
| Money Market Bonds | +$4.34B | +$91.68B |
| US Government Bonds | +$3.12B | +$54.37B |
| US Aggregate Bonds | +$2.22B | +$88.89B |
| US All Cap | +$2.05B | +$61.47B |
| Options Strategies | +$1.93B | +$71.00B |
| Most outflows, 1 week | 1W flow | YTD flows |
|---|---|---|
| US Large Cap | -$6.43B | +$246.91B |
| Intl IG Bonds | -$1.01B | +$33.06B |
| US Cons. Discretionary | -$871M | -$3.18B |
| Intl HY Bonds | -$823M | +$459M |
| US Corporate HY Bonds | -$777M | +$5.25B |
Data period: September 7 - 14, 2026
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