MVCKX vs. FRNKX

Last updated Jun 23, 2026

MVCKX (MFS Mid Cap Value Fund Class R6) and FRNKX (Frank Value Fund) are both Mid Cap Value Equities funds. Over the past 10 years, MVCKX returned 9.67%/yr vs 7.92%/yr for FRNKX. A 0.70 correlation means they provide meaningful diversification when combined. MVCKX charges 0.62%/yr vs 1.37%/yr for FRNKX.

Performance

MVCKX vs. FRNKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Mid Cap Value Fund Class R6 (MVCKX) and Frank Value Fund (FRNKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MVCKX achieves a 10.40% return, which is significantly lower than FRNKX's 11.52% return. Over the past 10 years, MVCKX has outperformed FRNKX with an annualized return of 9.67%, while FRNKX has yielded a comparatively lower 7.92% annualized return.

MVCKX

• 1D: 0.67%
• 1M: 2.53%
• YTD: 10.40%
• 6M: 8.87%
• 1Y: 19.42%
• 3Y*: 10.67%
• 5Y*: 7.92%
• 10Y*: 9.67%

FRNKX

• 1D: 0.85%
• 1M: 3.67%
• YTD: 11.52%
• 6M: 10.62%
• 1Y: 18.78%
• 3Y*: 17.25%
• 5Y*: 12.26%
• 10Y*: 7.92%

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

MVCKX vs. FRNKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MVCKX MFS Mid Cap Value Fund Class R6	10.40%	6.47%	6.80%	12.92%	-8.62%	30.93%	4.40%	31.11%	-11.35%	13.83%
FRNKX Frank Value Fund	11.52%	12.05%	19.31%	14.88%	4.23%	6.46%	12.84%	4.15%	-2.24%	-2.81%

Correlation

The correlation between MVCKX and FRNKX is 0.71, 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	0.71
Correlation (3Y) Calculated over the trailing 3-year period	0.76
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (10Y) Calculated over the trailing 10-year period	0.68
Correlation (All Time) Calculated using the full available price history since Jan 2, 2014	0.70

The correlation between MVCKX and FRNKX shifts across timeframes, from 0.68 (10 years) to 0.79 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

MVCKX vs. FRNKX — Risk / Return Rank

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

MVCKX

MVCKX Risk / Return Rank: 31
MVCKX Sharpe Ratio Rank: 29
MVCKX Sortino Ratio Rank: 32
MVCKX Omega Ratio Rank: 27
MVCKX Calmar Ratio Rank: 34
MVCKX Martin Ratio Rank: 34

FRNKX

FRNKX Risk / Return Rank: 30
FRNKX Sharpe Ratio Rank: 22
FRNKX Sortino Ratio Rank: 22
FRNKX Omega Ratio Rank: 20
FRNKX Calmar Ratio Rank: 54
FRNKX Martin Ratio Rank: 32

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.

MVCKX vs. FRNKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Mid Cap Value Fund Class R6 (MVCKX) and Frank Value Fund (FRNKX). 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.

	MVCKX	FRNKX	Difference
Sharpe ratio: Return per unit of total volatility	1.45	1.25	+0.20
Sortino ratio: Return per unit of downside risk	2.16	1.83	+0.34
Omega ratio: Gain probability vs. loss probability	1.26	1.22	+0.03
Calmar ratio: Return relative to maximum drawdown	2.10	2.67	-0.57
Martin ratio: Return relative to average drawdown	7.23	6.85	+0.38

MVCKX vs. FRNKX - Sharpe Ratio Comparison

The current MVCKX Sharpe Ratio is 1.45, which is comparable to the FRNKX Sharpe Ratio of 1.25. The chart below compares the historical Sharpe Ratios of MVCKX and FRNKX, 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

MVCKX vs. FRNKX - Drawdown Comparison

The maximum MVCKX drawdown since its inception was -42.75%, smaller than the maximum FRNKX drawdown of -97.09%. Use the drawdown chart below to compare losses from any high point for MVCKX and FRNKX.

Drawdown Indicators

	MVCKX	FRNKX	Difference
Max Drawdown Largest peak-to-trough decline	-42.75%	-97.09%	+54.34%
Max Drawdown (1Y) Largest decline over 1 year	-9.36%	-6.95%	-2.41%
Max Drawdown (3Y) Largest decline over 3 years	-25.96%	-97.09%	+71.13%
Max Drawdown (5Y) Largest decline over 5 years	-25.96%	-97.09%	+71.13%
Max Drawdown (10Y) Largest decline over 10 years	-42.75%	-97.09%	+54.34%
Current Drawdown Current decline from peak	-1.06%	-95.82%	+94.76%
Average Drawdown Average peak-to-trough decline	-5.25%	-12.20%	+6.95%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.72%	2.71%	+0.01%

Volatility

MVCKX vs. FRNKX - Volatility Comparison

MFS Mid Cap Value Fund Class R6 (MVCKX) has a higher volatility of 3.92% compared to Frank Value Fund (FRNKX) at 3.48%. This indicates that MVCKX's price experiences larger fluctuations and is considered to be riskier than FRNKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MVCKX	FRNKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.92%	3.48%	+0.44%
Volatility (6M) Calculated over the trailing 6-month period	9.89%	10.67%	-0.78%
Volatility (1Y) Calculated over the trailing 1-year period	13.58%	14.83%	-1.25%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.55%	1,805.05%	-1,787.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.41%	1,276.09%	-1,256.68%

MVCKX vs. FRNKX - Expense Ratio Comparison

MVCKX has a 0.62% expense ratio, which is lower than FRNKX's 1.37% expense ratio.

Dividends

MVCKX vs. FRNKX - Dividend Comparison

MVCKX's dividend yield for the trailing twelve months is around 7.49%, less than FRNKX's 10.74% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FRNKX Frank Value Fund	10.74%	11.98%	4.63%	10.14%	8.10%	4.93%	0.00%	0.23%	3.23%	0.00%	3.00%	7.64%
MVCKX MFS Mid Cap Value Fund Class R6	7.49%	8.27%	3.87%	3.00%	5.44%	5.88%	1.12%	2.32%	6.65%	3.68%	0.06%	4.87%

Frequently Asked Questions

Can I hold both MVCKX and FRNKX in my portfolio?

MVCKX and FRNKX have a correlation of 0.71, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MVCKX or FRNKX?

MVCKX has higher volatility (3.92%) compared to FRNKX (3.48%). In terms of maximum drawdown, MVCKX dropped -42.75% vs FRNKX's -97.09%.

Which has better risk-adjusted returns?

MVCKX currently has the higher Sharpe Ratio (1.45 vs 1.25), 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.