MMID vs. VXF

Last updated Jun 4, 2026

MMID (MFS Active Mid Cap ETF) and VXF (Vanguard Extended Market ETF) are both Mid Cap Blend Equities funds. MMID is actively managed, while VXF is passively managed. A 0.77 correlation means they provide meaningful diversification when combined. MMID charges 0.59%/yr vs 0.05%/yr for VXF.

Performance

MMID vs. VXF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Active Mid Cap ETF (MMID) and Vanguard Extended Market ETF (VXF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MMID achieves a 2.28% return, which is significantly lower than VXF's 13.78% return.

MMID

• 1D: -0.41%
• 1M: 0.95%
• YTD: 2.28%
• 6M: 2.54%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

VXF

• 1D: -1.02%
• 1M: 4.75%
• YTD: 13.78%
• 6M: 12.61%
• 1Y: 28.88%
• 3Y*: 19.75%
• 5Y*: 6.53%
• 10Y*: 12.08%

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

MMID vs. VXF - Yearly Performance Comparison

	2026 (YTD)	2025
MMID MFS Active Mid Cap ETF	2.28%	1.49%
VXF Vanguard Extended Market ETF	13.78%	0.27%

Correlation

The correlation between MMID and VXF is 0.77, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (All Time) Calculated using the full available price history since Sep 25, 2025	0.77

Return for Risk

MMID vs. VXF — Risk / Return Rank

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

VXF

VXF Risk / Return Rank: 50
VXF Sharpe Ratio Rank: 48
VXF Sortino Ratio Rank: 47
VXF Omega Ratio Rank: 44
VXF Calmar Ratio Rank: 56
VXF Martin Ratio Rank: 57

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.

MMID vs. VXF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Active Mid Cap ETF (MMID) and Vanguard Extended Market ETF (VXF). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	MMID	VXF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	1.69	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.29	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.54	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.41	0.46	-0.04

Drawdowns

MMID vs. VXF - Drawdown Comparison

The maximum MMID drawdown since its inception was -7.93%, smaller than the maximum VXF drawdown of -58.03%. Use the drawdown chart below to compare losses from any high point for MMID and VXF.

Drawdown Indicators

	MMID	VXF	Difference
Max Drawdown Largest peak-to-trough decline	-7.93%	-58.03%	+50.10%
Max Drawdown (1Y) Largest decline over 1 year	—	-10.21%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-26.92%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-36.39%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-41.72%	—
Current Drawdown Current decline from peak	-2.31%	-1.02%	-1.29%
Average Drawdown Average peak-to-trough decline	-2.14%	-9.55%	+7.41%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	2.87%	—

Volatility

Volatility by Period

	MMID	VXF	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	4.87%	—
Volatility (6M) Calculated over the trailing 6-month period	—	12.44%	—
Volatility (1Y) Calculated over the trailing 1-year period	13.57%	17.22%	-3.65%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.57%	22.33%	-8.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.57%	22.29%	-8.72%

MMID vs. VXF - Expense Ratio Comparison

MMID has a 0.59% expense ratio, which is higher than VXF's 0.05% expense ratio.

Dividends

MMID vs. VXF - Dividend Comparison

MMID's dividend yield for the trailing twelve months is around 0.49%, less than VXF's 1.02% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MMID MFS Active Mid Cap ETF	0.49%	0.28%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VXF Vanguard Extended Market ETF	1.02%	1.14%	1.09%	1.27%	1.15%	1.13%	1.07%	1.30%	1.66%	1.25%	1.43%	1.35%

Frequently Asked Questions

Can I hold both MMID and VXF in my portfolio?

MMID and VXF have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, MMID or VXF?

On fees, VXF is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, MMID or VXF?

VXF is cheaper with a 0.05% expense ratio, compared with 0.59% for MMID.

Which ETF pays a higher dividend yield, MMID or VXF?

VXF has the higher dividend yield at 1.02%, compared with 0.49% for MMID.

What is the main difference between MMID and VXF?

They also come from different issuers: MFS and Vanguard. Their fees differ too: 0.59% for MMID and 0.05% for VXF.