MFEGX vs. COSIX

Last updated Aug 1, 2026

MFEGX (MFS Growth Fund Class A) and COSIX (Columbia Strategic Income Fund) are both mutual funds - MFEGX is a Large Cap Growth Equities fund tracking the Russell 1000® Growth Index, while COSIX is a Nontraditional Bonds fund managed by Columbia. Over the past 10 years, MFEGX returned 16.90%/yr vs 3.31%/yr for COSIX. Their 0.16 correlation means their historical movements had little consistent relationship. MFEGX charges 0.83%/yr vs 0.92%/yr for COSIX.

Performance

MFEGX vs. COSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Growth Fund Class A (MFEGX) and Columbia Strategic Income Fund (COSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MFEGX achieves a 0.56% return, which is significantly lower than COSIX's 0.87% return. Over the past 10 years, MFEGX has outperformed COSIX with an annualized return of 16.90%, while COSIX has yielded a comparatively lower 3.31% annualized return.

MFEGX

• 1D: 2.48%
• 1M: -1.80%
• 6M: 1.63%
• YTD: 0.56%
• 1Y: 3.83%
• 3Y*: 22.23%
• 5Y*: 10.92%
• 10Y*: 16.90%
• ALL TIME*: 10.87%

COSIX

• 1D: 0.09%
• 1M: -0.71%
• 6M: 0.68%
• YTD: 0.87%
• 1Y: 2.87%
• 3Y*: 5.73%
• 5Y*: 1.65%
• 10Y*: 3.31%
• ALL TIME*: 5.44%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
COSIX Columbia Strategic Income Fund	$0.00	$0.00	$0.00
MFEGX MFS Growth Fund Class A	$0.00	$0.00	$0.00

MFEGX vs. COSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MFEGX MFS Growth Fund Class A	0.56%	12.06%	51.46%	35.81%	-31.31%	23.28%	36.29%	37.35%	2.04%	30.52%
COSIX Columbia Strategic Income Fund	0.87%	6.98%	4.50%	9.86%	-11.65%	1.34%	7.12%	10.19%	-0.96%	5.48%

Correlation

The correlation between MFEGX and COSIX is 0.41, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.41
Correlation (3Y) Balances recent behavior with more history.	0.25
Correlation (5Y) Shows whether the relationship held over a longer period.	0.28
Correlation (10Y) Provides a long-term view across more market conditions.	0.24
Correlation (All Time) Calculated using the full available price history since Sep 13, 1993	0.16

Over the past year, MFEGX and COSIX have become more correlated (0.41) than their long-term average of 0.16, meaning their price movements have been converging.

Return for Risk

MFEGX vs. COSIX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

MFEGX

MFEGX Risk / Return Rank: 6
MFEGX Sharpe Ratio Rank: 6
MFEGX Sortino Ratio Rank: 6
MFEGX Omega Ratio Rank: 6
MFEGX Calmar Ratio Rank: 6
MFEGX Martin Ratio Rank: 6

COSIX

COSIX Risk / Return Rank: 37
COSIX Sharpe Ratio Rank: 38
COSIX Sortino Ratio Rank: 38
COSIX Omega Ratio Rank: 34
COSIX Calmar Ratio Rank: 35
COSIX Martin Ratio Rank: 38

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

MFEGX vs. COSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Growth Fund Class A (MFEGX) and Columbia Strategic Income Fund (COSIX). 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.

	MFEGX	COSIX	Difference
Sharpe ratio: Return per unit of total volatility	0.12	1.18	-1.06
Sortino ratio: Return per unit of downside risk	0.29	1.73	-1.44
Omega ratio: Gain probability vs. loss probability	1.03	1.21	-0.17
Calmar ratio: Return relative to maximum drawdown	0.12	1.54	-1.42
Martin ratio: Return relative to average drawdown	0.38	5.74	-5.37

MFEGX vs. COSIX - Sharpe Ratio Comparison

The current MFEGX Sharpe Ratio is 0.12, which is lower than the COSIX Sharpe Ratio of 1.18. The chart below compares the historical Sharpe Ratios of MFEGX and COSIX, 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

MFEGX vs. COSIX - Drawdown Comparison

The maximum MFEGX drawdown since its inception was -72.42%, which is greater than COSIX's maximum drawdown of -27.69%. Use the drawdown chart below to compare losses from any high point for MFEGX and COSIX.

Drawdown Indicators

	MFEGX	COSIX	Difference
Max Drawdown Largest peak-to-trough decline	-72.42%	-27.69%	-44.73%
Max Drawdown (1Y) Largest decline over 1 year	-17.39%	-2.21%	-15.18%
Max Drawdown (3Y) Largest decline over 3 years	-23.28%	-3.59%	-19.69%
Max Drawdown (5Y) Largest decline over 5 years	-36.27%	-16.88%	-19.39%
Max Drawdown (10Y) Largest decline over 10 years	-36.27%	-16.88%	-19.39%
Current Drawdown Current decline from peak	-5.62%	-0.94%	-4.68%
Average Drawdown Average peak-to-trough decline	-22.14%	-2.46%	-19.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.60%	0.59%	+5.01%

Volatility

MFEGX vs. COSIX - Volatility Comparison

MFS Growth Fund Class A (MFEGX) has a higher volatility of 5.28% compared to Columbia Strategic Income Fund (COSIX) at 0.75%. This indicates that MFEGX's price experiences larger fluctuations and is considered to be riskier than COSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MFEGX	COSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.28%	0.75%	+4.53%
Volatility (6M) Calculated over the trailing 6-month period	14.10%	2.31%	+11.79%
Volatility (1Y) Calculated over the trailing 1-year period	17.53%	2.89%	+14.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.36%	4.57%	+17.79%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.46%	4.15%	+17.31%

MFEGX vs. COSIX - Expense Ratio Comparison

MFEGX has a 0.83% expense ratio, which is lower than COSIX's 0.92% expense ratio.

Dividends

MFEGX vs. COSIX - Dividend Comparison

MFEGX's dividend yield for the trailing twelve months is around 14.44%, more than COSIX's 5.08% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COSIX Columbia Strategic Income Fund	5.08%	4.94%	5.20%	5.03%	3.56%	3.86%	3.24%	3.71%	4.25%	3.51%	3.09%	4.20%
MFEGX MFS Growth Fund Class A	14.44%	16.88%	28.04%	5.30%	1.14%	2.98%	7.45%	1.68%	3.96%	2.65%	1.68%	3.84%

Frequently Asked Questions

Can I hold both MFEGX and COSIX in my portfolio?

MFEGX and COSIX have a correlation of 0.41, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MFEGX or COSIX?

MFEGX has higher volatility (5.28%) compared to COSIX (0.75%). In terms of maximum drawdown, MFEGX dropped -72.42% vs COSIX's -27.69%.

Which has better risk-adjusted returns?

COSIX currently has the higher Sharpe Ratio (1.18 vs 0.12), 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.