MPSAX vs. FFNYX

Last updated Jun 23, 2026

MPSAX (MassMutual Inflation-Protected and Income Fund) and FFNYX (Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund) are both Inflation-Protected Bonds funds. A 0.73 correlation means they provide meaningful diversification when combined. MPSAX charges 1.02%/yr vs 0.05%/yr for FFNYX.

Performance

MPSAX vs. FFNYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MassMutual Inflation-Protected and Income Fund (MPSAX) and Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund (FFNYX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

MPSAX

• 1D: 0.11%
• 1M: 0.32%
• YTD: 0.82%
• 6M: 1.21%
• 1Y: 2.77%
• 3Y*: 2.93%
• 5Y*: 2.72%
• 10Y*: 3.37%

FFNYX

• 1D: 0.00%
• 1M: -0.10%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MPSAX vs. FFNYX - Yearly Performance Comparison

	2026 (YTD)
MPSAX MassMutual Inflation-Protected and Income Fund	0.39%
FFNYX Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund	0.34%

Correlation

The correlation between MPSAX and FFNYX is 0.73, 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 Mar 16, 2026	0.73

Return for Risk

MPSAX vs. FFNYX — Risk / Return Rank

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

MPSAX

MPSAX Risk / Return Rank: 13
MPSAX Sharpe Ratio Rank: 11
MPSAX Sortino Ratio Rank: 11
MPSAX Omega Ratio Rank: 10
MPSAX Calmar Ratio Rank: 18
MPSAX Martin Ratio Rank: 13

FFNYX

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.

MPSAX vs. FFNYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MassMutual Inflation-Protected and Income Fund (MPSAX) and Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund (FFNYX). 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.

	MPSAX	FFNYX	Difference
Sharpe ratio: Return per unit of total volatility	0.85	—	—
Sortino ratio: Return per unit of downside risk	1.27	—	—
Omega ratio: Gain probability vs. loss probability	1.15	—	—
Calmar ratio: Return relative to maximum drawdown	1.42	—	—
Martin ratio: Return relative to average drawdown	3.38	—	—

Drawdowns

MPSAX vs. FFNYX - Drawdown Comparison

The maximum MPSAX drawdown since its inception was -19.35%, which is greater than FFNYX's maximum drawdown of -0.69%. Use the drawdown chart below to compare losses from any high point for MPSAX and FFNYX.

Drawdown Indicators

	MPSAX	FFNYX	Difference
Max Drawdown Largest peak-to-trough decline	-19.35%	-0.69%	-18.66%
Max Drawdown (1Y) Largest decline over 1 year	-2.04%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-4.01%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-19.35%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-19.35%	—	—
Current Drawdown Current decline from peak	-8.65%	-0.69%	-7.96%
Average Drawdown Average peak-to-trough decline	-6.19%	-0.21%	-5.98%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.86%	—	—

Volatility

Volatility by Period

	MPSAX	FFNYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.18%	—	—
Volatility (6M) Calculated over the trailing 6-month period	2.44%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	3.42%	2.00%	+1.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.76%	2.00%	+9.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	8.97%	2.00%	+6.97%

MPSAX vs. FFNYX - Expense Ratio Comparison

MPSAX has a 1.02% expense ratio, which is higher than FFNYX's 0.05% expense ratio.

Dividends

MPSAX vs. FFNYX - Dividend Comparison

MPSAX's dividend yield for the trailing twelve months is around 3.43%, more than FFNYX's 0.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FFNYX Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund	0.04%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
MPSAX MassMutual Inflation-Protected and Income Fund	3.43%	3.51%	1.44%	2.47%	3.34%	18.54%	5.13%	1.59%	2.68%	2.34%	2.23%	0.61%

Frequently Asked Questions

Can I hold both MPSAX and FFNYX in my portfolio?

MPSAX and FFNYX have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.