LTTIX vs. FIRMX

Last updated Jul 11, 2026

LTTIX (MFS Lifetime 2025 Fund) and FIRMX (Fidelity Managed Retirement Income Fund) are both Target Retirement Date funds. Their correlation of 0.89 suggests significant overlap in exposure. LTTIX charges 0.00%/yr vs 0.45%/yr for FIRMX.

Performance

LTTIX vs. FIRMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Lifetime 2025 Fund (LTTIX) and Fidelity Managed Retirement Income Fund (FIRMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

LTTIX

• 1D: —
• 1M: —
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

FIRMX

• 1D: 0.00%
• 1M: 0.00%
• 6M: 2.74%
• YTD: 3.60%
• 1Y: 8.29%
• 3Y*: 7.18%
• 5Y*: 2.79%
• 10Y*: 4.21%

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

LTTIX vs. FIRMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
LTTIX MFS Lifetime 2025 Fund	2.74%	9.29%	6.73%	10.36%	-12.36%	8.61%	10.61%	17.82%	-3.97%	13.16%
FIRMX Fidelity Managed Retirement Income Fund	3.60%	9.95%	4.29%	8.07%	-11.66%	2.77%	8.57%	10.57%	-1.80%	7.08%

Correlation

The correlation between LTTIX and FIRMX is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.91
Correlation (5Y) Calculated over the trailing 5-year period	0.89
Correlation (10Y) Calculated over the trailing 10-year period	0.86
Correlation (All Time) Calculated using the full available price history since Jan 2, 2013	0.89

The correlation between LTTIX and FIRMX has been stable across timeframes, ranging from 0.86 to 0.91 - a consistent structural relationship.

Return for Risk

LTTIX vs. FIRMX — Risk / Return Rank

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

LTTIX

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

FIRMX

FIRMX Risk / Return Rank: 82
FIRMX Sharpe Ratio Rank: 84
FIRMX Sortino Ratio Rank: 83
FIRMX Omega Ratio Rank: 84
FIRMX Calmar Ratio Rank: 77
FIRMX Martin Ratio Rank: 82

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.

LTTIX vs. FIRMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Lifetime 2025 Fund (LTTIX) and Fidelity Managed Retirement Income Fund (FIRMX). 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.

	LTTIX	FIRMX	Difference
Sharpe ratio: Return per unit of total volatility	—	2.19	—
Sortino ratio: Return per unit of downside risk	—	3.17	—
Omega ratio: Gain probability vs. loss probability	—	1.44	—
Calmar ratio: Return relative to maximum drawdown	—	2.77	—
Martin ratio: Return relative to average drawdown	—	11.63	—

Drawdowns

Drawdown Indicators

	LTTIX	FIRMX	Difference
Max Drawdown Largest peak-to-trough decline	—	-33.73%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-3.44%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-4.96%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-16.11%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-16.11%	—
Current Drawdown Current decline from peak	—	-0.42%	—
Average Drawdown Average peak-to-trough decline	—	-3.70%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.82%	—

Volatility

Volatility by Period

	LTTIX	FIRMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	2.02%	—
Volatility (6M) Calculated over the trailing 6-month period	—	3.70%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	4.36%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	5.32%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	4.54%	—

LTTIX vs. FIRMX - Expense Ratio Comparison

LTTIX has a 0.00% expense ratio, which is lower than FIRMX's 0.45% expense ratio.

Dividends

LTTIX vs. FIRMX - Dividend Comparison

LTTIX's dividend yield for the trailing twelve months is around 11.54%, more than FIRMX's 3.25% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FIRMX Fidelity Managed Retirement Income Fund	3.12%	3.13%	3.02%	2.81%	4.54%	3.56%	2.48%	2.59%	4.65%	8.57%	1.67%	1.68%
LTTIX MFS Lifetime 2025 Fund	11.54%	8.13%	7.07%	3.30%	5.88%	7.35%	2.83%	3.68%	4.32%	3.51%	4.03%	1.82%

Frequently Asked Questions

Can I hold both LTTIX and FIRMX in my portfolio?

With a correlation of 0.91, LTTIX and FIRMX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.