MVCAX vs. ACMVX
MVCAX (MFS Mid Cap Value Fund) and ACMVX (American Century Mid Cap Value Fund) are both Mid Cap Value Equities funds. Over the past 10 years, MVCAX returned 10.14%/yr vs 9.39%/yr for ACMVX. Their correlation of 0.95 means they have usually moved in the same direction. MVCAX charges 1.02%/yr vs 0.97%/yr for ACMVX.
Performance
MVCAX vs. ACMVX - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with MVCAX having a 15.06% return and ACMVX slightly higher at 15.57%. Over the past 10 years, MVCAX has outperformed ACMVX with an annualized return of 10.14%, while ACMVX has yielded a comparatively lower 9.39% annualized return.
MVCAX
- 1D
- -0.43%
- 1M
- 1.47%
- 6M
- 10.86%
- YTD
- 15.06%
- 1Y
- 21.17%
- 3Y*
- 12.62%
- 5Y*
- 9.16%
- 10Y*
- 10.14%
- ALL TIME*
- 9.25%
ACMVX
- 1D
- -0.70%
- 1M
- 2.29%
- 6M
- 10.85%
- YTD
- 15.57%
- 1Y
- 21.24%
- 3Y*
- 11.29%
- 5Y*
- 8.63%
- 10Y*
- 9.39%
- ALL TIME*
- 10.01%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
MVCAX vs. ACMVX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MVCAX MFS Mid Cap Value Fund | 15.06% | 6.09% | 13.57% | 12.51% | -8.96% | 30.43% | 4.03% | 30.57% | -11.69% | 13.37% |
ACMVX American Century Mid Cap Value Fund | 15.57% | 8.77% | 8.50% | 6.18% | -1.34% | 23.41% | 1.63% | 28.89% | -12.63% | 11.57% |
Correlation
The correlation between MVCAX and ACMVX is 0.91, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.91 |
Correlation (3Y) Balances recent behavior with more history. | 0.93 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.95 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.95 |
Correlation (All Time) Calculated using the full available price history since Apr 1, 2004 | 0.95 |
The correlation between MVCAX and ACMVX has been stable across timeframes, ranging from 0.91 to 0.95 - a consistent structural relationship.
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Return for Risk
MVCAX vs. ACMVX — Risk / Return Rank
MVCAX
ACMVX
MVCAX vs. ACMVX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MFS Mid Cap Value Fund (MVCAX) and American Century Mid Cap Value Fund (ACMVX). 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.
| MVCAX | ACMVX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.24 | ||
| Sortino ratioReturn per unit of downside risk | -0.37 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 1.29 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 2.05 | 2.33 | -0.27 |
| Martin ratioReturn relative to average drawdown | 7.09 | 7.62 | -0.53 |
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Drawdowns
MVCAX vs. ACMVX - Drawdown Comparison
The maximum MVCAX drawdown since its inception was -60.41%, which is greater than ACMVX's maximum drawdown of -51.19%. Use the drawdown chart below to compare losses from any high point for MVCAX and ACMVX.
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Drawdown Indicators
| MVCAX | ACMVX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -60.41% | -51.19% | -9.22% |
Max Drawdown (1Y)Largest decline over 1 year | -9.39% | -8.49% | -0.90% |
Max Drawdown (3Y)Largest decline over 3 years | -21.05% | -14.57% | -6.48% |
Max Drawdown (5Y)Largest decline over 5 years | -21.05% | -17.46% | -3.59% |
Max Drawdown (10Y)Largest decline over 10 years | -42.79% | -39.24% | -3.55% |
Current DrawdownCurrent decline from peak | -1.37% | -1.11% | -0.26% |
Average DrawdownAverage peak-to-trough decline | -8.08% | -5.89% | -2.19% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.72% | 2.59% | +0.13% |
Volatility
MVCAX vs. ACMVX - Volatility Comparison
MFS Mid Cap Value Fund (MVCAX) and American Century Mid Cap Value Fund (ACMVX) have volatilities of 3.37% and 3.44%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MVCAX | ACMVX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.37% | 3.44% | -0.07% |
Volatility (6M)Calculated over the trailing 6-month period | 9.73% | 8.62% | +1.11% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.45% | 11.82% | +1.63% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.15% | 14.57% | +2.58% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.18% | 17.38% | +1.80% |
MVCAX vs. ACMVX - Expense Ratio Comparison
MVCAX has a 1.02% expense ratio, which is higher than ACMVX's 0.97% expense ratio.
Dividends
MVCAX vs. ACMVX - Dividend Comparison
MVCAX's dividend yield for the trailing twelve months is around 7.13%, less than ACMVX's 12.69% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ACMVX American Century Mid Cap Value Fund | 12.69% | 14.46% | 8.76% | 5.24% | 15.00% | 15.95% | 1.83% | 1.46% | 14.51% | 9.49% | 4.05% | 11.06% |
MVCAX MFS Mid Cap Value Fund | 7.13% | 8.21% | 10.99% | 2.73% | 5.22% | 5.70% | 0.80% | 2.03% | 6.36% | 3.36% | 0.07% | 4.59% |
Frequently Asked Questions
With a correlation of 0.91, MVCAX and ACMVX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
ACMVX has higher volatility (3.44%) compared to MVCAX (3.37%). In terms of maximum drawdown, MVCAX dropped -60.41% vs ACMVX's -51.19%.
ACMVX currently has the higher Sharpe Ratio (1.68 vs 1.44), 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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