Not all ETF costs are created equal
Vanguard Perspective
|March 11, 2024
Vanguard Perspective
|March 11, 2024
Two decades ago, expense ratios among ETFs in a given category frequently differed by 10 to 20 basis points (bps).1 Today, these differences are often as low as 1 to 2 bps. As the range of expense ratios has narrowed, other ETF cost factors have become increasingly important.
In Understanding the total cost of ETF ownership, we explore each of these costs and assess their relative importance depending on an investor’s time frame, portfolio construction goals, trade size, and other factors.
Many investors are familiar with the two factors that make up the bulk of an ETF’s total cost—the expense ratio and bid/ask spread.
The expense ratio is an explicit, ongoing cost that reflects an ETF’s annualized operating expenses and is factored into its net asset value (NAV). The bid/ask spread—the difference between the highest price a buyer is willing to pay and the lowest price a seller is willing to accept—is another explicit cost that’s realized when buying or selling an ETF.
What ETF investors don’t always consider are the implicit costs they may incur. These are the costs associated with premium/discount volatility, tracking error, and market impact costs.
Which ETF cost factor matters more often depends on the answers to two questions: “What’s my holding period?” and “How large is my trade?”
As a proven driver of long-term performance, low expense ratios become more important as the ETF holding period lengthens. Conversely, bid/ask spreads and premium/discount volatility are generally more important for shorter holding periods. Tracking error tends to be equally important across all time horizons and trade sizes, while market impact costs typically come into play only for larger trades.
It’s unlikely that any one ETF will be the lowest cost across all five cost factors when comparing similar products. Ultimately, the relative importance of each cost factor depends on the investor’s goals and the nuances of the trade.
For help navigating these costs, download our guide, Understanding the total cost of ETF ownership, or reach out to Vanguard’s ETF Capital Markets Desk.
Brochure detailing the various costs of owning ETFs that highlights Vanguard’s commitment to low costs.
1 A basis point is one-hundredth of a percentage point.
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Notes:
For more information about Vanguard funds and ETFs, visit vanguard.com to obtain a prospectus or, if available, a summary prospectus. Investment objectives, risks, charges, expenses, and other important information about a fund are contained in the prospectus; read and consider it carefully before investing.
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