A Simple Method To Compare ETF Yields

December 22, 2014

This article is part of a regular series of thought leadership pieces from some of the more influential ETF strategists in the money management industry. Today's article is by Corey Hoffstein, co-founder and chief investment strategist for Boston-based Newfound Research LLC.

 

Yield is a perennial investment theme: As investors age, their objectives shift from one of accumulation to one of distribution. To make this transition, investors have historically tilted their portfolios toward fixed-income holdings, which offer stable income with less volatility.

However, with suppressed current interest rates and the risk of rising rates in the future, many investors have looked toward alternative income-generating asset classes for their yield needs—especially now that they are easily available in ETF packaging.

As investors evaluate the yield of these alternative income-generating opportunities, a subtle problem arises: Yield, as it is frequently reported, has a variety of definitions. So how can we compare yield in one asset class to another?

First, let’s review the standard measures that are often quoted.

12-Month Trailing Yield

This is the income yield investors would have received if they held the fund over the prior 12 months based on current net asset value (NAV). To calculate the metric, the prior 12 months’ income distributions are divided by the sum of the present NAV and any capital gain distributions over the same period.

This practice, in effect, discounts the yield figure for capital that’s no longer invested.

The potential problem here is twofold.

First, we have to qualify whether the capital gains distributions are likely to be consistent going forward. Given that these distributions usually happen once a year, we’re effectively extrapolating from a single data point—a generally frowned-upon practice.

Second, we purchase an ETF at its market price, not at its NAV. This may seem like a minor difference, but consider that many higher-yielding asset classes tend to have less liquid underlying securities—such as high yield, bank loans, emerging market bonds, etc.—that can cause price and NAV to deviate considerably.

As an example, in January 2009, the iShares JPMorgan USD Emerging Market Bond ETF (EMB | B-58) traded at a 4.29 percent premium to NAV, and the SPDR Barclays High Yield Bond ETF (JNK | B-68) was priced at a 3.98 percent premium to NAV.

Distribution Yield

Distribution yield takes the most recent distribution—whether that’s income, capital gains or some other special event—annualizes it and divides by the current NAV. The big difference is that distribution yield cares not for how the distribution was generated, just that it was generated.

Depending on how distribution yield is calculated, however, it may be highly sensitive to special or lumpy distributions, painting an inaccurate picture of the actual annualized yield we should expect.

Weighted Average Yield-To-Maturity

Relevant to funds holding fixed-income securities, weighted average yield-to-maturity looks under the hood to the underlying fund holdings to take into account bond pricing dynamics.

Yield-to-maturity is the anticipated rate of return for a bond if it is held to maturity, which will take into account appreciation or depreciation that may occur when a bond is purchased below or above its face value. For callable bonds, yield-to-worst is used instead; yield-to-worst is the lesser of yield-to-call—which assumes a bond bought at a premium will be called—and yield-to-maturity.

Unfortunately, while yield-to-maturity may give a very accurate value for bond funds, it fails to be usable across other asset classes. Furthermore, the fund structure of many bond ETFs means that bonds are rarely held until maturity.

30-Day SEC Yield

This yield metric was developed by the Securities and Exchange Commission in an effort to provide a fairer comparison across bond funds. The figure approximates the yield an investor would receive assuming that bonds within the portfolio are held until maturity. The measure also assumes the reinvestment of all income, and accounting for fees and expenses of the fund.

The formula is vague enough, however, that it could be applied to dividend equity funds. Still, while iShares calculates this figure for its dividend equity funds, few other fund families do.

30-day SEC yield may be a very effective tool for placing bond funds on even ground for analysis, but it is not widely reported across other income-generating asset classes. Furthermore, due to its short-term nature, it may be highly sensitive to lumpy distributions that may occur.

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