AGCVX vs. MVGIX

Last updated Jun 4, 2026

AGCVX (American Century Global Small Cap Fund) and MVGIX (MFS Low Volatility Global Equity Fund) are both Global Equities funds. Over the past 5 years, AGCVX returned 2.99%/yr vs 8.71%/yr for MVGIX. A 0.76 correlation means they provide meaningful diversification when combined. AGCVX charges 1.11%/yr vs 0.74%/yr for MVGIX.

Performance

AGCVX vs. MVGIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Global Small Cap Fund (AGCVX) and MFS Low Volatility Global Equity Fund (MVGIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AGCVX achieves a 12.46% return, which is significantly higher than MVGIX's 2.95% return.

AGCVX

• 1D: 0.52%
• 1M: 2.72%
• YTD: 12.46%
• 6M: 13.09%
• 1Y: 20.12%
• 3Y*: 14.04%
• 5Y*: 2.99%
• 10Y*: —

MVGIX

• 1D: 0.00%
• 1M: 0.28%
• YTD: 2.95%
• 6M: 3.95%
• 1Y: 10.44%
• 3Y*: 13.00%
• 5Y*: 8.71%
• 10Y*: 9.22%

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

AGCVX vs. MVGIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AGCVX American Century Global Small Cap Fund	12.46%	10.96%	12.52%	10.17%	-29.46%	18.44%	46.34%	35.08%	-12.80%	37.97%
MVGIX MFS Low Volatility Global Equity Fund	2.95%	16.30%	12.64%	13.71%	-8.21%	16.84%	5.47%	20.59%	-2.40%	17.98%

Correlation

The correlation between AGCVX and MVGIX is 0.66, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.66
Correlation (3Y) Calculated over the trailing 3-year period	0.71
Correlation (5Y) Calculated over the trailing 5-year period	0.76
Correlation (All Time) Calculated using the full available price history since Jan 4, 2017	0.76

The correlation between AGCVX and MVGIX shifts across timeframes, from 0.66 (1 year) to 0.76 (all time), reflecting how their relationship changes across market environments.

Return for Risk

AGCVX vs. MVGIX — Risk / Return Rank

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

AGCVX

AGCVX Risk / Return Rank: 17
AGCVX Sharpe Ratio Rank: 16
AGCVX Sortino Ratio Rank: 15
AGCVX Omega Ratio Rank: 16
AGCVX Calmar Ratio Rank: 17
AGCVX Martin Ratio Rank: 21

MVGIX

MVGIX Risk / Return Rank: 17
MVGIX Sharpe Ratio Rank: 19
MVGIX Sortino Ratio Rank: 19
MVGIX Omega Ratio Rank: 19
MVGIX Calmar Ratio Rank: 12
MVGIX Martin Ratio Rank: 14

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.

AGCVX vs. MVGIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Global Small Cap Fund (AGCVX) and MFS Low Volatility Global Equity Fund (MVGIX). 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.

	AGCVX	MVGIX	Difference
Sharpe ratio: Return per unit of total volatility	1.13	1.26	-0.13
Sortino ratio: Return per unit of downside risk	1.64	1.82	-0.18
Omega ratio: Gain probability vs. loss probability	1.21	1.23	-0.02
Calmar ratio: Return relative to maximum drawdown	1.49	1.18	+0.31
Martin ratio: Return relative to average drawdown	5.42	3.94	+1.48
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AGCVX vs. MVGIX - Sharpe Ratio Comparison

The current AGCVX Sharpe Ratio is 1.13, which is comparable to the MVGIX Sharpe Ratio of 1.26. The chart below compares the historical Sharpe Ratios of AGCVX and MVGIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	AGCVX	MVGIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.13	1.26	-0.13
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.15	0.83	-0.68
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.75	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.61	0.74	-0.13

Drawdowns

AGCVX vs. MVGIX - Drawdown Comparison

The maximum AGCVX drawdown since its inception was -40.08%, which is greater than MVGIX's maximum drawdown of -30.19%. Use the drawdown chart below to compare losses from any high point for AGCVX and MVGIX.

Drawdown Indicators

	AGCVX	MVGIX	Difference
Max Drawdown Largest peak-to-trough decline	-40.08%	-30.19%	-9.89%
Max Drawdown (1Y) Largest decline over 1 year	-13.82%	-8.65%	-5.17%
Max Drawdown (3Y) Largest decline over 3 years	-23.23%	-8.70%	-14.53%
Max Drawdown (5Y) Largest decline over 5 years	-38.95%	-18.01%	-20.94%
Max Drawdown (10Y) Largest decline over 10 years	—	-30.19%	—
Current Drawdown Current decline from peak	-1.16%	-4.35%	+3.19%
Average Drawdown Average peak-to-trough decline	-12.78%	-2.91%	-9.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.81%	2.59%	+1.22%

Volatility

AGCVX vs. MVGIX - Volatility Comparison

American Century Global Small Cap Fund (AGCVX) has a higher volatility of 6.45% compared to MFS Low Volatility Global Equity Fund (MVGIX) at 2.02%. This indicates that AGCVX's price experiences larger fluctuations and is considered to be riskier than MVGIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AGCVX	MVGIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.45%	2.02%	+4.43%
Volatility (6M) Calculated over the trailing 6-month period	15.02%	6.26%	+8.76%
Volatility (1Y) Calculated over the trailing 1-year period	18.39%	8.14%	+10.25%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.50%	10.54%	+9.96%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.00%	12.39%	+8.61%

AGCVX vs. MVGIX - Expense Ratio Comparison

AGCVX has a 1.11% expense ratio, which is higher than MVGIX's 0.74% expense ratio.

Dividends

AGCVX vs. MVGIX - Dividend Comparison

AGCVX's dividend yield for the trailing twelve months is around 0.64%, less than MVGIX's 10.63% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AGCVX American Century Global Small Cap Fund	0.64%	0.71%	2.19%	0.22%	0.00%	17.80%	4.84%	4.97%	2.27%	5.04%	0.00%	0.00%
MVGIX MFS Low Volatility Global Equity Fund	10.63%	10.94%	7.84%	1.88%	3.98%	9.43%	1.55%	2.79%	4.98%	1.95%	1.60%	1.94%

Frequently Asked Questions

Can I hold both AGCVX and MVGIX in my portfolio?

AGCVX and MVGIX have a correlation of 0.66, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AGCVX or MVGIX?

AGCVX has higher volatility (6.45%) compared to MVGIX (2.02%). In terms of maximum drawdown, AGCVX dropped -40.08% vs MVGIX's -30.19%.

Which has better risk-adjusted returns?

MVGIX currently has the higher Sharpe Ratio (1.26 vs 1.13), 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.