VPKIX vs. VTIAX

Last updated Jun 24, 2026

VPKIX (Vanguard Pacific Stock Index Fund Institutional Shares) and VTIAX (Vanguard Total International Stock Index Fund Admiral Shares) are both mutual funds - VPKIX is a Asia Pacific Equities fund managed by Vanguard, while VTIAX is a Foreign Large Cap Equities fund tracking the FTSE Global All Cap ex US Index. Over the past 10 years, VPKIX returned 11.38%/yr vs 10.47%/yr for VTIAX. Their correlation of 0.90 suggests significant overlap in exposure. VPKIX charges 0.08%/yr vs 0.09%/yr for VTIAX.

Performance

VPKIX vs. VTIAX - Performance Comparison

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

Returns By Period

In the year-to-date period, VPKIX achieves a 32.71% return, which is significantly higher than VTIAX's 15.81% return. Over the past 10 years, VPKIX has outperformed VTIAX with an annualized return of 11.38%, while VTIAX has yielded a comparatively lower 10.47% annualized return.

VPKIX

• 1D: 0.04%
• 1M: 7.11%
• YTD: 32.71%
• 6M: 32.94%
• 1Y: 56.42%
• 3Y*: 24.35%
• 5Y*: 11.29%
• 10Y*: 11.38%

VTIAX

• 1D: 0.17%
• 1M: 3.27%
• YTD: 15.81%
• 6M: 15.70%
• 1Y: 33.45%
• 3Y*: 20.02%
• 5Y*: 9.14%
• 10Y*: 10.47%

*Multi-year figures are annualized to reflect compound growth (CAGR)

VPKIX vs. VTIAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VPKIX Vanguard Pacific Stock Index Fund Institutional Shares	32.71%	33.12%	1.29%	15.58%	-15.20%	1.47%	16.54%	17.61%	-13.87%	28.55%
VTIAX Vanguard Total International Stock Index Fund Admiral Shares	15.81%	32.18%	5.34%	15.28%	-16.02%	8.59%	11.27%	21.52%	-14.46%	27.54%

Correlation

The correlation between VPKIX and VTIAX is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.89
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (10Y) Calculated over the trailing 10-year period	0.90
Correlation (All Time) Calculated using the full available price history since Nov 29, 2010	0.90

The correlation between VPKIX and VTIAX has been stable across timeframes, ranging from 0.89 to 0.90 - a consistent structural relationship.

Return for Risk

VPKIX vs. VTIAX — Risk / Return Rank

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

VPKIX

VPKIX Risk / Return Rank: 87
VPKIX Sharpe Ratio Rank: 91
VPKIX Sortino Ratio Rank: 80
VPKIX Omega Ratio Rank: 84
VPKIX Calmar Ratio Rank: 89
VPKIX Martin Ratio Rank: 89

VTIAX

VTIAX Risk / Return Rank: 68
VTIAX Sharpe Ratio Rank: 73
VTIAX Sortino Ratio Rank: 65
VTIAX Omega Ratio Rank: 71
VTIAX Calmar Ratio Rank: 69
VTIAX Martin Ratio Rank: 64

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.

VPKIX vs. VTIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Pacific Stock Index Fund Institutional Shares (VPKIX) 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	VPKIX	VTIAX	Difference
Sharpe ratio: Return per unit of total volatility	2.81	2.28	+0.53
Sortino ratio: Return per unit of downside risk	3.50	3.07	+0.44
Omega ratio: Gain probability vs. loss probability	1.52	1.43	+0.09
Calmar ratio: Return relative to maximum drawdown	4.29	3.05	+1.24
Martin ratio: Return relative to average drawdown	15.98	11.84	+4.14

VPKIX vs. VTIAX - Sharpe Ratio Comparison

The current VPKIX Sharpe Ratio is 2.81, which is comparable to the VTIAX Sharpe Ratio of 2.28. The chart below compares the historical Sharpe Ratios of VPKIX 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.

Drawdowns

VPKIX vs. VTIAX - Drawdown Comparison

The maximum VPKIX drawdown since its inception was -55.26%, which is greater than VTIAX's maximum drawdown of -35.83%. Use the drawdown chart below to compare losses from any high point for VPKIX and VTIAX.

Drawdown Indicators

	VPKIX	VTIAX	Difference
Max Drawdown Largest peak-to-trough decline	-55.26%	-35.83%	-19.43%
Max Drawdown (1Y) Largest decline over 1 year	-13.40%	-11.28%	-2.12%
Max Drawdown (3Y) Largest decline over 3 years	-16.38%	-13.13%	-3.25%
Max Drawdown (5Y) Largest decline over 5 years	-31.12%	-29.52%	-1.60%
Max Drawdown (10Y) Largest decline over 10 years	-33.62%	-35.83%	+2.21%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-15.41%	-8.06%	-7.35%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.59%	2.90%	+0.69%

Volatility

VPKIX vs. VTIAX - Volatility Comparison

Vanguard Pacific Stock Index Fund Institutional Shares (VPKIX) has a higher volatility of 10.05% compared to Vanguard Total International Stock Index Fund Admiral Shares (VTIAX) at 6.02%. This indicates that VPKIX's price experiences larger fluctuations and is considered to be riskier than VTIAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VPKIX	VTIAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.05%	6.02%	+4.03%
Volatility (6M) Calculated over the trailing 6-month period	17.55%	13.03%	+4.52%
Volatility (1Y) Calculated over the trailing 1-year period	20.46%	15.10%	+5.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.93%	15.21%	+1.72%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.46%	15.95%	+0.51%

VPKIX vs. VTIAX - Expense Ratio Comparison

VPKIX has a 0.08% 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

VPKIX vs. VTIAX - Dividend Comparison

VPKIX's dividend yield for the trailing twelve months is around 2.52%, more than VTIAX's 2.48% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VPKIX Vanguard Pacific Stock Index Fund Institutional Shares	2.52%	4.00%	3.15%	3.11%	2.74%	3.17%	1.81%	2.85%	3.05%	2.60%	2.67%	2.45%
VTIAX Vanguard Total International Stock Index Fund Admiral Shares	2.48%	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

Can I hold both VPKIX and VTIAX in my portfolio?

VPKIX and VTIAX have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VPKIX or VTIAX?

VPKIX has higher volatility (10.05%) compared to VTIAX (6.02%). In terms of maximum drawdown, VPKIX dropped -55.26% vs VTIAX's -35.83%.

Which has better risk-adjusted returns?

VPKIX currently has the higher Sharpe Ratio (2.81 vs 2.28), 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.