How the Largest Bond ETFs Performed
iShares Core US Aggregate Bond ETF led bond ETF returns in August, while Vanguard Total International Bond Index Fund lagged.

Each month, we check in on the performance of the largest US bond exchange-traded funds.
When evaluating ETFs, investors should focus on long-term returns across multiple years and market cycles. However, short-term returns can provide valuable information about biases within strategies.
Out of the 10 largest US bond ETFs, the top performer last month was the $137.6 billion iShares Core US Aggregate Bond ETF AGG, which gained 0.38%. The bottom performer was the $122.5 billion Vanguard Total International Bond Index Fund BNDX, which lost 0.21%.
Here’s more about the performance of the largest bond ETFs.
Vanguard Total Bond Market Index Fund BND
- : GoldMorningstar Medalist Rating
- : Intermediate Core BondMorningstar Category
The $396.7 billion Vanguard Total Bond Market Index Fund rose 0.38% in August. The gain on the fund beat the 0.33% gain on the average fund in the intermediate core bond category, outperforming 66% of its peers. Over the past year, the Vanguard fund rose 1.82%, while the average fund in its category rose 1.80%. The fund, launched in April 2007, has climbed 4.08% over the past three years annualized and lost 0.30% annualized over the past five years.
iShares Core US Aggregate Bond ETF AGG
- : GoldMorningstar Medalist Rating
- : Intermediate Core BondMorningstar Category
The $137.6 billion iShares Core US Aggregate Bond ETF rose 0.38% in August. The gain on the fund beat the 0.33% gain on the average fund in the intermediate core bond category, outperforming 69% of its peers. Over the past year, the iShares fund rose 1.89%, while the average fund in its category rose 1.80%. The fund, launched in September 2003, has climbed 4.08% over the past three years annualized and lost 0.28% annualized over the past five years.
Vanguard Total International Bond Index Fund BNDX
- : GoldMorningstar Medalist Rating
- : Global Bond-USD HedgedMorningstar Category
The Vanguard Total International Bond Index Fund lost 0.21% in August, underperforming the average fund in the global bond-USD hedged category, which was unchanged. The $122.5 billion fund has gained 0.98% over the past year, while the average fund in its category is up 1.82%. The Vanguard fund, launched in May 2013, has climbed 3.78% over the past three years annualized and lost 0.01% annualized over the past five years.
iShares 0-3 Month Treasury Bond ETF SGOV
- : NeutralMorningstar Medalist Rating
- : Ultrashort BondMorningstar Category
The iShares 0-3 Month Treasury Bond ETF gained 0.29% in August, underperforming the average fund in the ultrashort bond category, which rose 0.33%. The $104.9 billion fund has gained 3.78% over the past year, while the average fund in its category is up 3.98%. The iShares fund, launched in May 2020, has climbed 4.59% over the past three years annualized and gained 3.72% annualized over the past five years.
Vanguard Short-Term Inflation-Protected Securities Index Fund VTIP
- : GoldMorningstar Medalist Rating
- : Short-Term Inflation-Protected BondMorningstar Category
In August, the Vanguard Short-Term Inflation-Protected Securities Index Fund rose 0.04%, while the average short-term inflation-protected bond fund was unchanged. The fund outperformed 66% of its peers. The $71.2 billion fund has climbed 2.20% over the past year, outperforming the average fund in its category, which rose 1.77%. The Vanguard fund, launched in October 2012, has climbed 5.02% over the past three years annualized and gained 3.07% annualized over the past five years.
Vanguard Short-Term Bond Index Fund BSV
- : BronzeMorningstar Medalist Rating
- : Short-Term BondMorningstar Category
The $70.6 billion Vanguard Short-Term Bond Index Fund rose 0.23% in August. The gain on the fund was shy of the 0.32% gain on the average fund in the short-term bond category, underperforming 77% of its peers. Over the past year, the Vanguard fund rose 2.14%, while the average fund in its category rose 2.92%. The fund, launched in April 2007, has climbed 4.50% over the past three years annualized and gained 1.68% annualized over the past five years.
Vanguard Intermediate-Term Corporate Bond Index Fund VCIT
- : GoldMorningstar Medalist Rating
- : Corporate BondMorningstar Category
In August, the Vanguard Intermediate-Term Corporate Bond Index Fund rose 0.22%, while the average corporate bond fund gained 0.40%. The fund underperformed 90% of its peers. The $69.8 billion fund has climbed 1.90% over the past year, performing roughly in line with the average fund in its category, which rose 1.87%. The Vanguard fund, launched in November 2009, has climbed 5.88% over the past three years annualized and gained 0.75% annualized over the past five years.
Vanguard Short-Term Corporate Bond Index Fund VCSH
- : GoldMorningstar Medalist Rating
- : Short-Term BondMorningstar Category
The $52 billion Vanguard Short-Term Corporate Bond Index Fund rose 0.29% in August. The gain on the fund was shy of the 0.32% gain on the average fund in the short-term bond category, underperforming 51% of its peers. Over the past year, the Vanguard fund rose 2.78%, while the average fund in its category rose 2.92%. The fund, launched in November 2009, has climbed 5.47% over the past three years annualized and gained 2.38% annualized over the past five years.
Vanguard Intermediate-Term Bond Index Fund BIV
- : NeutralMorningstar Medalist Rating
- : Intermediate Core BondMorningstar Category
In August, the Vanguard Intermediate-Term Bond Index Fund rose 0.18%, while the average intermediate core bond fund gained 0.33%. The fund underperformed 93% of its peers. The $51.9 billion fund has climbed 1.04% over the past year, underperforming the average fund in its category, which rose 1.80%. The Vanguard fund, launched in April 2007, has climbed 4.47% over the past three years annualized and lost 0.18% annualized over the past five years.
Vanguard Intermediate-Term Treasury Index Fund VGIT
- : GoldMorningstar Medalist Rating
- : Intermediate GovernmentMorningstar Category
In August, the Vanguard Intermediate-Term Treasury Index Fund rose 0.13%, while the average intermediate government fund gained 0.24%. The fund underperformed 67% of its peers. The $50.8 billion fund has climbed 0.71% over the past year, underperforming the average fund in its category, which rose 1.01%. The Vanguard fund, launched in November 2009, has climbed 3.73% over the past three years annualized and lost 0.16% annualized over the past five years.
This article was generated with the help of automation and reviewed by Morningstar editors. Learn more about Morningstar’s use of automation.
The author or authors do not own shares in any securities mentioned in this article. Find out about Morningstar’s editorial policies.
