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VIPIX vs. VTIAX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

Performance

VIPIX vs. VTIAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Inflation-Protected Securities Fund Institutional Shares (VIPIX) and Vanguard Total International Stock Index Fund Admiral Shares (VTIAX). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, VIPIX achieves a 1.59% return, which is significantly lower than VTIAX's 15.40% return. Over the past 10 years, VIPIX has underperformed VTIAX with an annualized return of 2.67%, while VTIAX has yielded a comparatively higher 9.85% annualized return.


VIPIX

1D
-0.11%
1M
0.11%
YTD
1.59%
6M
1.20%
1Y
5.29%
3Y*
4.06%
5Y*
1.18%
10Y*
2.67%

VTIAX

1D
0.60%
1M
5.53%
YTD
15.40%
6M
18.19%
1Y
33.34%
3Y*
19.78%
5Y*
8.81%
10Y*
9.85%
*Multi-year figures are annualized to reflect compound growth (CAGR)

VIPIX vs. VTIAX - Yearly Performance Comparison


2026 (YTD)202520242023202220212020201920182017
VIPIX
Vanguard Inflation-Protected Securities Fund Institutional Shares
1.59%6.98%1.85%3.85%-11.93%5.73%11.05%8.18%-1.40%2.97%
VTIAX
Vanguard Total International Stock Index Fund Admiral Shares
15.40%32.18%5.34%15.28%-16.02%8.59%11.27%21.52%-14.46%27.54%

Correlation

The correlation between VIPIX and VTIAX is 0.25, which is low. Their price movements are largely independent, making them effective diversification partners.


Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.25

Correlation (3Y)
Calculated over the trailing 3-year period

0.26

Correlation (5Y)
Calculated over the trailing 5-year period

0.20

Correlation (10Y)
Calculated over the trailing 10-year period

0.11

Correlation (All Time)
Calculated using the full available price history since Nov 30, 2010

-0.01

The correlation between VIPIX and VTIAX shifts across timeframes, from -0.01 (all time) to 0.26 (3 years), reflecting how their relationship changes across market environments.

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Return for Risk

VIPIX vs. VTIAX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

VIPIX
VIPIX Risk / Return Rank: 3333
Overall Rank
VIPIX Sharpe Ratio Rank: 2828
Sharpe Ratio Rank
VIPIX Sortino Ratio Rank: 3131
Sortino Ratio Rank
VIPIX Omega Ratio Rank: 2626
Omega Ratio Rank
VIPIX Calmar Ratio Rank: 4747
Calmar Ratio Rank
VIPIX Martin Ratio Rank: 3535
Martin Ratio Rank

VTIAX
VTIAX Risk / Return Rank: 5858
Overall Rank
VTIAX Sharpe Ratio Rank: 6262
Sharpe Ratio Rank
VTIAX Sortino Ratio Rank: 5656
Sortino Ratio Rank
VTIAX Omega Ratio Rank: 5959
Omega Ratio Rank
VTIAX Calmar Ratio Rank: 5757
Calmar Ratio Rank
VTIAX Martin Ratio Rank: 5757
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

VIPIX vs. VTIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Inflation-Protected Securities Fund Institutional Shares (VIPIX) and Vanguard Total International Stock Index Fund Admiral Shares (VTIAX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.


VIPIXVTIAXDifference
Sharpe ratioReturn per unit of total volatility

-0.82

Sortino ratioReturn per unit of downside risk

-0.85

Omega ratioGain probability vs. loss probability

1.27

1.43

-0.16

Calmar ratioReturn relative to maximum drawdown

2.60

2.91

-0.31

Martin ratioReturn relative to average drawdown

7.88

11.49

-3.62

VIPIX vs. VTIAX - Sharpe Ratio Comparison

The current VIPIX Sharpe Ratio is 1.49, which is lower than the VTIAX Sharpe Ratio of 2.31. The chart below compares the historical Sharpe Ratios of VIPIX and VTIAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.


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Sharpe Ratios by Period


VIPIXVTIAXDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.49

2.31

-0.82

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.20

0.59

-0.39

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.50

0.62

-0.12

Sharpe Ratio (All Time)

Calculated using the full available price history

0.62

0.44

+0.18

Drawdowns

VIPIX vs. VTIAX - Drawdown Comparison

The maximum VIPIX drawdown since its inception was -15.04%, smaller than the maximum VTIAX drawdown of -35.83%. Use the drawdown chart below to compare losses from any high point for VIPIX and VTIAX.


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Drawdown Indicators


VIPIXVTIAXDifference

Max Drawdown

Largest peak-to-trough decline

-15.04%

-35.83%

+20.79%

Max Drawdown (1Y)

Largest decline over 1 year

-2.00%

-11.28%

+9.28%

Max Drawdown (3Y)

Largest decline over 3 years

-4.46%

-13.13%

+8.67%

Max Drawdown (5Y)

Largest decline over 5 years

-14.33%

-29.56%

+15.23%

Max Drawdown (10Y)

Largest decline over 10 years

-14.33%

-35.83%

+21.50%

Current Drawdown

Current decline from peak

-0.12%

0.00%

-0.12%

Average Drawdown

Average peak-to-trough decline

-3.35%

-8.08%

+4.73%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.66%

2.85%

-2.19%

Volatility

VIPIX vs. VTIAX - Volatility Comparison

The current volatility for Vanguard Inflation-Protected Securities Fund Institutional Shares (VIPIX) is 1.03%, while Vanguard Total International Stock Index Fund Admiral Shares (VTIAX) has a volatility of 4.80%. This indicates that VIPIX experiences smaller price fluctuations and is considered to be less risky than VTIAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


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Volatility by Period


VIPIXVTIAXDifference

Volatility (1M)

Calculated over the trailing 1-month period

1.03%

4.80%

-3.77%

Volatility (6M)

Calculated over the trailing 6-month period

2.42%

11.90%

-9.48%

Volatility (1Y)

Calculated over the trailing 1-year period

3.49%

14.22%

-10.73%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

6.03%

15.04%

-9.01%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

5.37%

15.93%

-10.56%

VIPIX vs. VTIAX - Expense Ratio Comparison

VIPIX has a 0.07% expense ratio, which is lower than VTIAX's 0.09% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.


Dividends

VIPIX vs. VTIAX - Dividend Comparison

VIPIX's dividend yield for the trailing twelve months is around 4.52%, more than VTIAX's 2.60% yield.


PositionTTM20252024202320222021202020192018201720162015
VIPIX
Vanguard Inflation-Protected Securities Fund Institutional Shares
4.52%4.77%4.20%4.34%8.49%5.16%1.41%2.32%3.15%2.45%3.50%0.91%
VTIAX
Vanguard Total International Stock Index Fund Admiral Shares
2.60%3.15%3.33%3.22%3.04%3.05%2.10%3.04%3.16%2.73%2.93%2.84%

Frequently Asked Questions


VIPIX and VTIAX have a correlation of 0.25, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

VTIAX has higher volatility (4.80%) compared to VIPIX (1.03%). In terms of maximum drawdown, VIPIX dropped -15.04% vs VTIAX's -35.83%.

VTIAX currently has the higher Sharpe Ratio (2.31 vs 1.49), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.

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