Vanguard Inflation-Protected Securities Fund Admiral Shares (VAIPX)

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The chart shows the growth of an initial investment of $10,000 in Vanguard Inflation-Protected Securities Fund Admiral Shares, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.

Vanguard Inflation-Protected Securities Fund Admiral Shares (VAIPX) has returned 0.30% so far this year and 2.94% over the past 12 months. Over the last ten years, VAIPX has returned 2.55% per year, falling short of the S&P 500 Index benchmark, which averaged 12.16% annually.

Based on dividend-adjusted daily data since Jun 10, 2005, VAIPX's average daily return is +0.01%, while the average monthly return is +0.26%. At this rate, your investment would double in approximately 22.2 years.

Historically, 62% of months were positive and 38% were negative. The best month was Mar 2009 with a return of +6.0%, while the worst month was Oct 2008 at -8.8%. The longest winning streak lasted 10 consecutive months, and the longest losing streak was 4 months.

On a daily basis, VAIPX closed higher 50% of trading days. The best single day was Mar 18, 2009 with a return of +3.7%, while the worst single day was Mar 17, 2020 at -3.0%.

Vanguard Inflation-Protected Securities Fund Admiral Shares has an annualized alpha of 3.58%, beta of -0.04, and R² of 0.02 versus S&P 500 Index. Calculated based on daily prices since June 13, 2005.

• This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (11.98%) than losses (3.85%) — typical of diversified or defensive assets.
• Beta of -0.04 may look defensive, but with R² of 0.02 this fund is largely uncorrelated with S&P 500 Index — low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
• R² of 0.02 means this fund moves largely independently of S&P 500 Index — capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

VAIPX has an expense ratio of 0.10%, which is considered low.

VAIPX ranks 38 for risk / return — below 38% of mutual funds on our site. The returns aren't fully compensating for the risk involved. This isn't necessarily a dealbreaker, but factor it into your decision — especially if you're risk-averse.

The table below present risk-adjusted performance metrics for Vanguard Inflation-Protected Securities Fund Admiral Shares (VAIPX) and compare them to a chosen benchmark (S&P 500 Index).

Vanguard Inflation-Protected Securities Fund Admiral Shares provided a 4.46% dividend yield over the last twelve months, with an annual payout of $1.03 per share.

The table displays the monthly dividend distributions for Vanguard Inflation-Protected Securities Fund Admiral Shares. The dividends shown in the table have been adjusted to account for any splits that may have occurred.

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.

The table below displays the maximum drawdowns of the Vanguard Inflation-Protected Securities Fund Admiral Shares. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the Vanguard Inflation-Protected Securities Fund Admiral Shares was 15.04%, occurring on Nov 24, 2008. Recovery took 226 trading sessions.

The current Vanguard Inflation-Protected Securities Fund Admiral Shares drawdown is 1.41%.

The chart below shows the rolling one-month volatility.