MGF vs. FUAMX
MGF (MFS Government Markets Income Trust) and FUAMX (Fidelity Intermediate Treasury Bond Index Fund) are both Government Bonds funds. Over the past 5 years, MGF returned -1.39%/yr vs -0.99%/yr for FUAMX. Their 0.29 correlation means their historical movements had little consistent relationship. MGF charges 0.02%/yr vs 0.03%/yr for FUAMX.
Performance
MGF vs. FUAMX - Performance Comparison
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Returns By Period
In the year-to-date period, MGF achieves a -2.79% return, which is significantly lower than FUAMX's -1.10% return.
MGF
- 1D
- 0.00%
- 1M
- -1.39%
- 6M
- -3.88%
- YTD
- -2.79%
- 1Y
- -1.49%
- 3Y*
- 3.13%
- 5Y*
- -1.39%
- 10Y*
- 1.11%
- ALL TIME*
- 2.22%
FUAMX
- 1D
- 0.10%
- 1M
- -1.03%
- 6M
- -0.99%
- YTD
- -1.10%
- 1Y
- 0.87%
- 3Y*
- 3.28%
- 5Y*
- -0.99%
- 10Y*
- —
- ALL TIME*
- 1.16%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $174.87K | $200.97K | $288.87K |
MGF vs. FUAMX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MGF MFS Government Markets Income Trust | -2.79% | 6.24% | 4.17% | 3.78% | -15.81% | -0.22% | 7.80% | 10.32% | 1.33% | -1.59% |
FUAMX Fidelity Intermediate Treasury Bond Index Fund | -1.10% | 8.00% | 0.40% | 4.07% | -13.06% | -3.19% | 8.86% | 7.25% | 1.25% | -0.35% |
Correlation
The correlation between MGF and FUAMX is 0.30, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.30 |
Correlation (3Y) Balances recent behavior with more history. | 0.36 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.36 |
Correlation (All Time) Calculated using the full available price history since Oct 19, 2017 | 0.29 |
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Return for Risk
MGF vs. FUAMX — Risk / Return Rank
MGF
FUAMX
MGF vs. FUAMX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MFS Government Markets Income Trust (MGF) and Fidelity Intermediate Treasury Bond Index Fund (FUAMX). 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.
| MGF | FUAMX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.66 | ||
| Sortino ratioReturn per unit of downside risk | -0.92 | ||
| Omega ratioGain probability vs. loss probability | 0.99 | 1.10 | -0.11 |
| Calmar ratioReturn relative to maximum drawdown | -0.19 | 0.62 | -0.81 |
| Martin ratioReturn relative to average drawdown | -0.36 | 1.43 | -1.79 |
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Drawdowns
MGF vs. FUAMX - Drawdown Comparison
The maximum MGF drawdown since its inception was -35.74%, which is greater than FUAMX's maximum drawdown of -20.25%. Use the drawdown chart below to compare losses from any high point for MGF and FUAMX.
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Drawdown Indicators
| MGF | FUAMX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -35.74% | -20.25% | -15.49% |
Max Drawdown (1Y)Largest decline over 1 year | -6.13% | -3.72% | -2.41% |
Max Drawdown (3Y)Largest decline over 3 years | -8.69% | -5.83% | -2.86% |
Max Drawdown (5Y)Largest decline over 5 years | -22.88% | -18.27% | -4.61% |
Max Drawdown (10Y)Largest decline over 10 years | -22.88% | — | — |
Current DrawdownCurrent decline from peak | -7.49% | -7.47% | -0.02% |
Average DrawdownAverage peak-to-trough decline | -10.86% | -7.31% | -3.55% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.26% | 1.62% | +1.64% |
Volatility
MGF vs. FUAMX - Volatility Comparison
MFS Government Markets Income Trust (MGF) has a higher volatility of 2.50% compared to Fidelity Intermediate Treasury Bond Index Fund (FUAMX) at 1.04%. This indicates that MGF's price experiences larger fluctuations and is considered to be riskier than FUAMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MGF | FUAMX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.50% | 1.04% | +1.46% |
Volatility (6M)Calculated over the trailing 6-month period | 8.39% | 3.30% | +5.09% |
Volatility (1Y)Calculated over the trailing 1-year period | 10.48% | 4.22% | +6.26% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 11.40% | 6.63% | +4.77% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 10.23% | 5.82% | +4.41% |
MGF vs. FUAMX - Expense Ratio Comparison
MGF has a 0.02% expense ratio, which is lower than FUAMX's 0.03% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
MGF vs. FUAMX - Dividend Comparison
MGF's dividend yield for the trailing twelve months is around 8.17%, more than FUAMX's 3.53% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FUAMX Fidelity Intermediate Treasury Bond Index Fund | 3.53% | 3.52% | 3.58% | 2.19% | 1.24% | 1.76% | 2.90% | 2.16% | 2.23% | 0.49% | 0.00% | 0.00% |
MGF MFS Government Markets Income Trust | 8.17% | 7.65% | 7.81% | 7.82% | 8.45% | 7.71% | 7.58% | 7.50% | 7.81% | 7.92% | 8.09% | 8.05% |
Frequently Asked Questions
MGF and FUAMX have a correlation of 0.30, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
MGF has higher volatility (2.50%) compared to FUAMX (1.04%). In terms of maximum drawdown, MGF dropped -35.74% vs FUAMX's -20.25%.
FUAMX currently has the higher Sharpe Ratio (0.55 vs -0.11), 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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