Funds diversified among hundreds or thousands of stocks with razor-thin expense ratios make great core portfolio holdings that can be bought and held forever. Because of their diverse holdings, they’re built to withstand a wide range of market environments. Funds that target a specific sector or style can remain out of favor for years, even as the broader market rises.
These ETFs aren’t terribly exciting. But when conditions turn rough, as they are right now with the war in Iran, these funds demonstrate their value quickly. They won’t necessarily avoid losses, but they’re likely to mitigate volatility. The global economic outlook is beginning to look shakier and equity markets are selling off. These four ETFs can act as core portfolio holdings without exposing you to concentration risk.
Vanguard Total Stock Market ETF (VTI) is the best example of simply owning the market, currently trading around $314. For core portfolio positions, many investors choose the Vanguard S&P 500 ETF. Owning the total U.S. market means adding smaller companies to a large-cap portfolio.
That diversification hasn’t mattered much over the past few years when mega-cap tech was almost single-handedly driving the major averages higher. But 2026 has been a good reminder that this doesn’t always happen. The Vanguard Total Stock Market ETF allocates about 25% of its assets to mid- and small-cap stocks. That’s enough to provide risk mitigation while capturing additional long-term growth potential.
VTI’s characteristics come from market-cap weighting the entire investable U.S. equity universe. The fund doesn’t make sector bets or style tilts—it simply owns the market in proportion to each company’s size. This passive approach ensures participation in whatever areas of the market are working while avoiding the risk that active decisions underperform.
Invesco Nasdaq 100 ETF (QQQM), along with its sister fund the Invesco QQQ ETF, has been one of the market’s best-performing funds, currently trading around $232. The bull market in tech stocks and the artificial intelligence boom have played big roles. But the technological revolution feels like it’s still in the early innings.
There’s risk to owning a fund so heavily weighted in one sector. But tech is one of the biggest drivers of the U.S. economy. Its ability to generate consistent revenue and earnings growth makes it a sector that can weather different economic environments.
The Nasdaq 100 concentrates exposure in the largest non-financial companies listed on Nasdaq, which means heavy technology weighting but also includes consumer discretionary, communication services, and healthcare. This provides some diversification beyond pure technology while maintaining focus on growth-oriented companies with strong competitive positions.
The AI boom represents a multi-decade transformation rather than a temporary trend. Artificial intelligence is being integrated into enterprise software, consumer applications, data centers, semiconductor design, cloud infrastructure, and countless other areas. Companies positioned to capitalize on AI adoption should see sustained growth extending well beyond current market cycles.
Schwab U.S. Dividend Equity ETF (SCHD) is full of durable, financially healthy companies that generate cash flow, currently trading around $31. The portfolio looks nothing like the S&P 500.
The fund’s selection process targets companies that have paid dividends for years, have balance sheet health to maintain those dividend payments, and pay above-average yields. Its top three sector holdings are energy (20%), consumer staples (19%), and healthcare (16%). These are areas of the market that should have steady demand regardless of economic environment.
This sector composition contrasts sharply with the S&P 500’s heavy technology weighting. SCHD provides diversification away from mega-cap tech names that dominate market-cap weighted indexes. The fund focuses on companies generating cash flow and returning it to shareholders through dividends rather than reinvesting heavily for growth.
The dividend focus creates natural quality screens. Companies cannot pay and grow dividends for decades without consistent profitability, strong balance sheets, and sustainable business models. Energy, consumer staples, and healthcare represent defensive sectors with recession-resistant characteristics.
Vanguard Total World Stock ETF (VT) adds international equity exposure to the total U.S. market, currently trading around $135. Since international economies can often look very different from the U.S., they offer unique perspectives and economic cycles that pair well with the S&P 500.
The Vanguard Total World Stock ETF is roughly 60% U.S. stocks, 30% developed-market stocks, and 10% emerging-market stocks. If that’s too much international exposure, you can use a combination of the Vanguard Total Stock Market ETF and the Vanguard Total International Stock ETF to tailor your own personal asset allocation.
International diversification provides exposure to different economic growth rates, currency movements, monetary policies, and market cycles. The 60/30/10 allocation roughly mirrors global market capitalization weighting. U.S. stocks represent the largest portion because U.S. equity markets are the world’s deepest and most liquid.
VT provides one-fund global equity exposure without needing to rebalance between domestic and international holdings or make tactical calls about which markets look attractive. The fund automatically adjusts weightings as market capitalizations change, maintaining market-weight exposure globally.
Portfolio stability during volatility means different things for each fund. VTI delivers it through comprehensive U.S. market exposure. QQQM achieves it through tech sector growth that persists across cycles. SCHD provides it via dividend quality screens and defensive sector positioning. VT creates it through geographic diversification across global markets.
For investors building core portfolio positions, these funds can work individually or in combination. An investor might hold VTI for U.S. exposure and VT for international, or combine all four for diversification across market caps, styles, sectors, and geographies. The key is understanding that portfolio anchors don’t mean these funds perform identically or even positively in all environments—it means they’re built to withstand various market conditions through diversification.
