FSRNX vs. PMZIX

Last updated Jun 4, 2026

FSRNX (Fidelity Real Estate Index Fund) and PMZIX (PIMCO Mortgage Opportunities and Bond Fund) are both mutual funds - FSRNX is a REIT fund tracking the MSCI US IMI Real Estate 25/25 Index, while PMZIX is a Nontraditional Bonds fund managed by PIMCO. Over the past 10 years, FSRNX returned 3.98%/yr vs 3.60%/yr for PMZIX. At a 0.19 correlation, their price movements are largely independent. FSRNX charges 0.07%/yr vs 0.60%/yr for PMZIX.

Performance

FSRNX vs. PMZIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Real Estate Index Fund (FSRNX) and PIMCO Mortgage Opportunities and Bond Fund (PMZIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FSRNX achieves a 7.68% return, which is significantly higher than PMZIX's 1.04% return. Over the past 10 years, FSRNX has outperformed PMZIX with an annualized return of 3.98%, while PMZIX has yielded a comparatively lower 3.60% annualized return.

FSRNX

• 1D: 0.46%
• 1M: -0.80%
• YTD: 7.68%
• 6M: 6.60%
• 1Y: 9.92%
• 3Y*: 9.07%
• 5Y*: 2.15%
• 10Y*: 3.98%

PMZIX

• 1D: 0.00%
• 1M: 0.35%
• YTD: 1.04%
• 6M: 1.42%
• 1Y: 6.34%
• 3Y*: 6.56%
• 5Y*: 2.98%
• 10Y*: 3.60%

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

FSRNX vs. PMZIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSRNX Fidelity Real Estate Index Fund	7.68%	3.03%	4.99%	11.93%	-26.14%	40.66%	-11.31%	23.78%	-4.91%	3.15%
PMZIX PIMCO Mortgage Opportunities and Bond Fund	1.04%	8.50%	5.74%	7.03%	-8.00%	2.42%	5.44%	5.04%	1.55%	5.50%

Correlation

The correlation between FSRNX and PMZIX is 0.37, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.37
Correlation (3Y) Calculated over the trailing 3-year period	0.37
Correlation (5Y) Calculated over the trailing 5-year period	0.29
Correlation (10Y) Calculated over the trailing 10-year period	0.22
Correlation (All Time) Calculated using the full available price history since Jan 3, 2013	0.19

The correlation between FSRNX and PMZIX shifts across timeframes, from 0.19 (all time) to 0.37 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

FSRNX vs. PMZIX — Risk / Return Rank

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

FSRNX

FSRNX Risk / Return Rank: 10
FSRNX Sharpe Ratio Rank: 9
FSRNX Sortino Ratio Rank: 9
FSRNX Omega Ratio Rank: 9
FSRNX Calmar Ratio Rank: 12
FSRNX Martin Ratio Rank: 12

PMZIX

PMZIX Risk / Return Rank: 47
PMZIX Sharpe Ratio Rank: 41
PMZIX Sortino Ratio Rank: 51
PMZIX Omega Ratio Rank: 49
PMZIX Calmar Ratio Rank: 46
PMZIX Martin Ratio Rank: 45

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.

FSRNX vs. PMZIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Real Estate Index Fund (FSRNX) and PIMCO Mortgage Opportunities and Bond Fund (PMZIX). 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.

	FSRNX	PMZIX	Difference
Sharpe ratio: Return per unit of total volatility	0.73	1.87	-1.13
Sortino ratio: Return per unit of downside risk	1.08	3.01	-1.93
Omega ratio: Gain probability vs. loss probability	1.13	1.39	-0.25
Calmar ratio: Return relative to maximum drawdown	1.14	2.59	-1.45
Martin ratio: Return relative to average drawdown	3.63	9.48	-5.85
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FSRNX vs. PMZIX - Sharpe Ratio Comparison

The current FSRNX Sharpe Ratio is 0.73, which is lower than the PMZIX Sharpe Ratio of 1.87. The chart below compares the historical Sharpe Ratios of FSRNX and PMZIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FSRNX	PMZIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.73	1.87	-1.13
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.11	0.78	-0.66
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.19	1.12	-0.93
Sharpe Ratio (All Time) Calculated using the full available price history	0.34	1.24	-0.89

Drawdowns

FSRNX vs. PMZIX - Drawdown Comparison

The maximum FSRNX drawdown since its inception was -44.26%, which is greater than PMZIX's maximum drawdown of -10.44%. Use the drawdown chart below to compare losses from any high point for FSRNX and PMZIX.

Drawdown Indicators

	FSRNX	PMZIX	Difference
Max Drawdown Largest peak-to-trough decline	-44.26%	-10.44%	-33.82%
Max Drawdown (1Y) Largest decline over 1 year	-8.47%	-2.42%	-6.05%
Max Drawdown (3Y) Largest decline over 3 years	-17.49%	-3.53%	-13.96%
Max Drawdown (5Y) Largest decline over 5 years	-34.27%	-10.44%	-23.83%
Max Drawdown (10Y) Largest decline over 10 years	-44.26%	-10.44%	-33.82%
Current Drawdown Current decline from peak	-3.70%	-0.56%	-3.14%
Average Drawdown Average peak-to-trough decline	-9.69%	-1.18%	-8.51%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.67%	0.66%	+2.01%

Volatility

FSRNX vs. PMZIX - Volatility Comparison

Fidelity Real Estate Index Fund (FSRNX) has a higher volatility of 3.79% compared to PIMCO Mortgage Opportunities and Bond Fund (PMZIX) at 1.23%. This indicates that FSRNX's price experiences larger fluctuations and is considered to be riskier than PMZIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSRNX	PMZIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.79%	1.23%	+2.56%
Volatility (6M) Calculated over the trailing 6-month period	9.42%	2.43%	+6.99%
Volatility (1Y) Calculated over the trailing 1-year period	13.22%	3.36%	+9.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.89%	3.85%	+15.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.40%	3.23%	+18.17%

FSRNX vs. PMZIX - Expense Ratio Comparison

FSRNX has a 0.07% expense ratio, which is lower than PMZIX's 0.60% expense ratio.

Dividends

FSRNX vs. PMZIX - Dividend Comparison

FSRNX's dividend yield for the trailing twelve months is around 2.58%, less than PMZIX's 5.52% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FSRNX Fidelity Real Estate Index Fund	2.58%	2.77%	2.86%	2.84%	2.66%	1.25%	3.33%	4.52%	3.62%	2.27%	3.40%	2.57%
PMZIX PIMCO Mortgage Opportunities and Bond Fund	5.52%	5.84%	7.59%	6.74%	5.87%	3.99%	3.96%	4.38%	4.34%	3.62%	5.24%	4.08%

Frequently Asked Questions

Can I hold both FSRNX and PMZIX in my portfolio?

FSRNX and PMZIX have a correlation of 0.37, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FSRNX or PMZIX?

FSRNX has higher volatility (3.79%) compared to PMZIX (1.23%). In terms of maximum drawdown, FSRNX dropped -44.26% vs PMZIX's -10.44%.

Which has better risk-adjusted returns?

PMZIX currently has the higher Sharpe Ratio (1.87 vs 0.73), 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.