The Better Buy? Why IGSB and SMB Serve Different Purposes

iShares 1-5 Year Investment Grade Corporate Bond ETF (NASDAQ:IGSB) and VanEck Short Muni ETF (NYSEMKT:SMB) both target short-duration debt, but they differ significantly in tax treatment, credit exposure, and yield.

Short-term bond funds offer a place to preserve cash while minimizing interest rate risk. While IGSB focuses on high-quality corporate debt to maximize income, SMB targets municipal bonds that offer tax-exempt income, making this comparison a choice between raw yield and tax efficiency.

Snapshot (cost & size)

Beta measures price volatility relative to the S&P 500; beta is calculated from monthly returns over the available fund history (up to five years). The 1-year return represents total return over the trailing 12 months. Dividend yield is the trailing-12-month distribution yield.

The iShares fund is more affordable, featuring an expense ratio of 0.04%. It also provides a higher trailing distribution yield of 4.7%, representing a 1.82 percentage-point advantage over the VanEck ETF's yield.

Performance & risk comparison

What's inside

The iShares 1-5 Year Investment Grade Corporate Bond ETF tracks an index of high-quality, U.S. dollar-denominated corporate debt with maturities between one and five years. Its portfolio is broad, holding 4,757 securities to mitigate individual credit risk. The fund is highly diversified, and its largest positions are in corporate issues, with no single position exceeding 0.29% of the total portfolio. It was launched in 2007. iShares 1-5 Year Investment Grade Corporate Bond ETF has paid $2.41 per share over the trailing 12 months, which, on its recent ~$51.37 share price, works out to a 4.7% yield.

The VanEck Short Muni ETF tracks the ICE Short AMT-Free Broad National Municipal Index, focusing on short-duration, tax-exempt municipal bonds. It holds 335 positions and applies an ESG screen to its selection process. It was launched in 2008. VanEck Short Muni ETF has paid $0.48 per share over the trailing 12 months, which, on its recent ~$17.18 share price, works out to a 2.9% yield.

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Which looks like the better buy

When comparing the iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB) and the VanEck Short Muni ETF (SMB), investors should consider several key factors. Let's see what they tell us about each fund.

First, we should examine each fund's strategy. IGSB, for its part, is a fund focused on the corporate bond market. In particular, it focuses on bonds with a one- to five-year maturity. SMB, on the other hand, targets the municipal bond market. Municipal bonds are preferred by some investors given their special tax status under federal law.

Two other important factors are historical performance and income potential. Over the last five years, IGSB has generated a total return of 14%, equating to a compound annual growth rate (CAGR) of 2.6%. SMB, meanwhile, has delivered a total return of 7%, with a 1.4% CAGR. As for income potential, IGSB has a forward dividend yield of around 4.7%, while SMB's is 3.5%.

One final factor to weigh is cost. While both funds are quite affordable, IGSB has a slight edge. It has an expense ratio of 0.04%, while SMB's is 0.07%. To put that in context, if someone were to invest $10,000 in each fund, they should expect to pay $4 in annual fees for their IGSB shares and $7 in annual fees for their SMB shares.

In summary, IGSB and SMB are both bond ETFs, however, they serve differing purposes. IGSB will be favored by many income-oriented investors for its notable yield and superior returns over the last five years. Yet SMB may be favored by those seeking yield while also craving its unique tax benefits.

Jake Lerch has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.