VTABX vs. VTMGX

Last updated Jun 16, 2026

VTABX (Vanguard Total International Bond Index Fund Admiral Shares) and VTMGX (Vanguard Developed Markets Index Fund Admiral Shares) are both mutual funds - VTABX is a Global Bonds fund tracking the Bloomberg Global Aggregate ex-USD Float Adjusted RIC Capped Index Hedged, while VTMGX is a Foreign Large Cap Equities fund tracking the FTSE Developed All Cap ex US Index. Both are passively managed. Over the past 10 years, VTABX returned 1.78%/yr vs 10.68%/yr for VTMGX. At a 0.02 correlation, their price movements are largely independent. VTABX charges 0.10%/yr vs 0.07%/yr for VTMGX.

Performance

VTABX vs. VTMGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Total International Bond Index Fund Admiral Shares (VTABX) and Vanguard Developed Markets Index Fund Admiral Shares (VTMGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VTABX achieves a 0.72% return, which is significantly lower than VTMGX's 14.64% return. Over the past 10 years, VTABX has underperformed VTMGX with an annualized return of 1.78%, while VTMGX has yielded a comparatively higher 10.68% annualized return.

VTABX

• 1D: 0.16%
• 1M: 1.50%
• YTD: 0.72%
• 6M: 0.96%
• 1Y: 2.21%
• 3Y*: 4.34%
• 5Y*: 0.33%
• 10Y*: 1.78%

VTMGX

• 1D: 0.66%
• 1M: 3.56%
• YTD: 14.64%
• 6M: 16.00%
• 1Y: 31.41%
• 3Y*: 19.04%
• 5Y*: 9.49%
• 10Y*: 10.68%

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

VTABX vs. VTMGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VTABX Vanguard Total International Bond Index Fund Admiral Shares	0.72%	2.96%	3.92%	8.77%	-12.92%	-2.22%	4.54%	8.83%	2.97%	2.39%
VTMGX Vanguard Developed Markets Index Fund Admiral Shares	14.64%	35.17%	3.03%	17.65%	-15.33%	11.39%	10.25%	22.04%	-14.48%	26.39%

Correlation

The correlation between VTABX and VTMGX is 0.41, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.41
Correlation (3Y) Calculated over the trailing 3-year period	0.26
Correlation (5Y) Calculated over the trailing 5-year period	0.19
Correlation (10Y) Calculated over the trailing 10-year period	0.06
Correlation (All Time) Calculated using the full available price history since Jun 4, 2013	0.02

Over the past year, VTABX and VTMGX have become more correlated (0.41) than their long-term average of 0.02, meaning their price movements have been converging.

Return for Risk

VTABX vs. VTMGX — Risk / Return Rank

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

VTABX

VTABX Risk / Return Rank: 9
VTABX Sharpe Ratio Rank: 9
VTABX Sortino Ratio Rank: 9
VTABX Omega Ratio Rank: 9
VTABX Calmar Ratio Rank: 9
VTABX Martin Ratio Rank: 8

VTMGX

VTMGX Risk / Return Rank: 54
VTMGX Sharpe Ratio Rank: 55
VTMGX Sortino Ratio Rank: 51
VTMGX Omega Ratio Rank: 54
VTMGX Calmar Ratio Rank: 56
VTMGX Martin Ratio Rank: 55

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.

VTABX vs. VTMGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Total International Bond Index Fund Admiral Shares (VTABX) and Vanguard Developed Markets Index Fund Admiral Shares (VTMGX). 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.

	VTABX	VTMGX	Difference
Sharpe ratio: Return per unit of total volatility	0.62	1.86	-1.24
Sortino ratio: Return per unit of downside risk	0.90	2.54	-1.64
Omega ratio: Gain probability vs. loss probability	1.11	1.34	-0.23
Calmar ratio: Return relative to maximum drawdown	0.66	2.55	-1.89
Martin ratio: Return relative to average drawdown	1.79	9.75	-7.96

VTABX vs. VTMGX - Sharpe Ratio Comparison

The current VTABX Sharpe Ratio is 0.62, which is lower than the VTMGX Sharpe Ratio of 1.86. The chart below compares the historical Sharpe Ratios of VTABX and VTMGX, 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

VTABX vs. VTMGX - Drawdown Comparison

The maximum VTABX drawdown since its inception was -16.16%, smaller than the maximum VTMGX drawdown of -60.58%. Use the drawdown chart below to compare losses from any high point for VTABX and VTMGX.

Drawdown Indicators

	VTABX	VTMGX	Difference
Max Drawdown Largest peak-to-trough decline	-16.16%	-60.58%	+44.42%
Max Drawdown (1Y) Largest decline over 1 year	-2.90%	-11.67%	+8.77%
Max Drawdown (3Y) Largest decline over 3 years	-2.90%	-13.18%	+10.28%
Max Drawdown (5Y) Largest decline over 5 years	-15.81%	-29.71%	+13.90%
Max Drawdown (10Y) Largest decline over 10 years	-16.16%	-35.68%	+19.52%
Current Drawdown Current decline from peak	-1.15%	-1.08%	-0.07%
Average Drawdown Average peak-to-trough decline	-3.04%	-14.64%	+11.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.06%	3.05%	-1.99%

Volatility

VTABX vs. VTMGX - Volatility Comparison

The current volatility for Vanguard Total International Bond Index Fund Admiral Shares (VTABX) is 1.27%, while Vanguard Developed Markets Index Fund Admiral Shares (VTMGX) has a volatility of 6.62%. This indicates that VTABX experiences smaller price fluctuations and is considered to be less risky than VTMGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VTABX	VTMGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.27%	6.62%	-5.35%
Volatility (6M) Calculated over the trailing 6-month period	2.61%	13.59%	-10.98%
Volatility (1Y) Calculated over the trailing 1-year period	3.08%	16.00%	-12.92%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.45%	16.04%	-11.59%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.62%	16.58%	-12.96%

VTABX vs. VTMGX - Expense Ratio Comparison

VTABX has a 0.10% expense ratio, which is higher than VTMGX's 0.07% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

VTABX vs. VTMGX - Dividend Comparison

VTABX's dividend yield for the trailing twelve months is around 4.45%, more than VTMGX's 2.61% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VTABX Vanguard Total International Bond Index Fund Admiral Shares	4.45%	4.36%	4.33%	4.39%	1.48%	3.70%	1.08%	4.28%	3.00%	2.23%	1.80%	1.64%
VTMGX Vanguard Developed Markets Index Fund Admiral Shares	2.61%	3.20%	3.34%	3.14%	2.88%	3.14%	2.02%	3.03%	3.33%	2.77%	3.06%	2.91%

Frequently Asked Questions

Can I hold both VTABX and VTMGX in my portfolio?

VTABX and VTMGX have a correlation of 0.41, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VTABX or VTMGX?

VTMGX has higher volatility (6.62%) compared to VTABX (1.27%). In terms of maximum drawdown, VTABX dropped -16.16% vs VTMGX's -60.58%.

Which has better risk-adjusted returns?

VTMGX currently has the higher Sharpe Ratio (1.86 vs 0.62), 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.