Vanguard Total Corporate Bond ETF offers a diversified portfolio of high-quality corporate bonds at a rock-bottom price.
The fund tracks the Bloomberg US Corporate Bond Index. It holds investment-grade, fixed-rate, taxable corporate bonds with at least USD 300 million in outstanding par value. It excludes bonds with equity features, contingent capital securities, inflation-linked bonds, and structured notes, among others. The index weights eligible bonds by their market value, which helps control turnover and the associated trading costs.
The exchange-traded fund tends to have a more conservative credit risk profile than many of its peers in the corporate-bond Morningstar Category. It overweights A rated bonds by more than 10% while excluding all high-yield bonds, or those rated below BBB. A typical peer parks 10% of its assets in high-yield bonds. Those differences can provide greater downside protection during credit shocks. However, it has a slightly longer duration than most of its peers, so it should be a little more sensitive to changes in interest rates.
The portfolio captures a majority of the investment-grade corporate-bond market. It holds over 3,700 individual bonds and does a good job diversifying among issuers within their respective industries. Financial institutions issue approximately a third of their holdings. This concentration could be a source of risk, but many of these institutions are systemically important banks with substantial risk controls in place.
The fund tends to outperform peers during widening credit spreads, as seen toward the beginning of 2020. The ETF beat the average of its peers by 1.43% between January and March 2020. Higher credit quality can also hurt performance during times of interest rate stability and economic recoveries. For example, it underperformed the average of its peers over the last nine months of 2020. Likewise, it lagged the category average by 13 basis points over the first eight months of 2025.