MFSG vs. MMID

Last updated Jun 23, 2026

MFSG (MFS Active Growth ETF) and MMID (MFS Active Mid Cap ETF) are both exchange-traded funds - MFSG is a Large Cap Growth Equities fund actively managed by MFS, while MMID is a Mid Cap Blend Equities fund actively managed by MFS. Both are actively managed. A 0.51 correlation means they provide meaningful diversification when combined. MFSG charges 0.49%/yr vs 0.59%/yr for MMID.

Performance

MFSG vs. MMID - Performance Comparison

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

Returns By Period

In the year-to-date period, MFSG achieves a 6.80% return, which is significantly higher than MMID's 3.61% return.

MFSG

• 1D: -1.37%
• 1M: 0.70%
• YTD: 6.80%
• 6M: 6.76%
• 1Y: 20.82%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MMID

• 1D: -0.19%
• 1M: 2.39%
• YTD: 3.61%
• 6M: 2.71%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MFSG vs. MMID - Yearly Performance Comparison

	2026 (YTD)	2025
MFSG MFS Active Growth ETF	6.80%	0.76%
MMID MFS Active Mid Cap ETF	3.61%	0.62%

Correlation

The correlation between MFSG and MMID is 0.51, 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 24, 2025	0.51

Return for Risk

MFSG vs. MMID — Risk / Return Rank

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

MFSG

MFSG Risk / Return Rank: 32
MFSG Sharpe Ratio Rank: 36
MFSG Sortino Ratio Rank: 34
MFSG Omega Ratio Rank: 34
MFSG Calmar Ratio Rank: 27
MFSG Martin Ratio Rank: 32

MMID

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

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.

MFSG vs. MMID - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Active Growth ETF (MFSG) and MFS Active Mid Cap ETF (MMID). 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.

	MFSG	MMID	Difference
Sharpe ratio: Return per unit of total volatility	1.23	—	—
Sortino ratio: Return per unit of downside risk	1.74	—	—
Omega ratio: Gain probability vs. loss probability	1.22	—	—
Calmar ratio: Return relative to maximum drawdown	1.30	—	—
Martin ratio: Return relative to average drawdown	4.46	—	—

Drawdowns

MFSG vs. MMID - Drawdown Comparison

The maximum MFSG drawdown since its inception was -23.24%, which is greater than MMID's maximum drawdown of -7.93%. Use the drawdown chart below to compare losses from any high point for MFSG and MMID.

Drawdown Indicators

	MFSG	MMID	Difference
Max Drawdown Largest peak-to-trough decline	-23.24%	-7.93%	-15.31%
Max Drawdown (1Y) Largest decline over 1 year	-16.15%	—	—
Current Drawdown Current decline from peak	-1.69%	-1.04%	-0.65%
Average Drawdown Average peak-to-trough decline	-4.60%	-2.10%	-2.50%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.68%	—	—

Volatility

Volatility by Period

	MFSG	MMID	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.70%	—	—
Volatility (6M) Calculated over the trailing 6-month period	13.64%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	17.05%	13.58%	+3.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.93%	13.58%	+8.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.93%	13.58%	+8.35%

MFSG vs. MMID - Expense Ratio Comparison

MFSG has a 0.49% expense ratio, which is lower than MMID's 0.59% expense ratio.

Dividends

MFSG vs. MMID - Dividend Comparison

MFSG's dividend yield for the trailing twelve months is around 0.07%, less than MMID's 0.49% yield.

Position	TTM	2025
MFSG MFS Active Growth ETF	0.07%	0.08%
MMID MFS Active Mid Cap ETF	0.49%	0.28%

Frequently Asked Questions

Can I hold both MFSG and MMID in my portfolio?

MFSG and MMID have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, MFSG or MMID?

On fees, MFSG is cheaper at 0.49% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, MFSG or MMID?

MFSG is cheaper with a 0.49% expense ratio, compared with 0.59% for MMID.

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

MMID has the higher dividend yield at 0.49%, compared with 0.07% for MFSG.

What is the main difference between MFSG and MMID?

MFSG is categorized as Large Cap Growth Equities, while MMID is Mid Cap Blend Equities. Their fees differ too: 0.49% for MFSG and 0.59% for MMID.