WAIIX vs. FFNYX

Last updated Jun 3, 2026

WAIIX (Western Asset Inflation Indexed Plus Bond Fund) and FFNYX (Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund) are both Inflation-Protected Bonds funds. A 0.65 correlation means they provide meaningful diversification when combined. WAIIX charges 0.54%/yr vs 0.05%/yr for FFNYX.

Performance

WAIIX vs. FFNYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Western Asset Inflation Indexed Plus Bond Fund (WAIIX) 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

WAIIX

• 1D: 0.00%
• 1M: -0.00%
• YTD: 1.43%
• 6M: 1.19%
• 1Y: 4.72%
• 3Y*: 3.39%
• 5Y*: 0.49%
• 10Y*: 2.26%

FFNYX

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

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

WAIIX vs. FFNYX - Yearly Performance Comparison

	2026 (YTD)
WAIIX Western Asset Inflation Indexed Plus Bond Fund	0.69%
FFNYX Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund	0.93%

Correlation

The correlation between WAIIX and FFNYX is 0.65, 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 17, 2026	0.65

Return for Risk

WAIIX vs. FFNYX — Risk / Return Rank

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

WAIIX

WAIIX Risk / Return Rank: 25
WAIIX Sharpe Ratio Rank: 19
WAIIX Sortino Ratio Rank: 20
WAIIX Omega Ratio Rank: 19
WAIIX Calmar Ratio Rank: 34
WAIIX Martin Ratio Rank: 32

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.

WAIIX vs. FFNYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Western Asset Inflation Indexed Plus Bond Fund (WAIIX) 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.

	WAIIX	FFNYX	Difference
Sharpe ratio Return per unit of total volatility	1.27	—	—
Sortino ratio Return per unit of downside risk	1.90	—	—
Omega ratio Gain probability vs. loss probability	1.23	—	—
Calmar ratio Return relative to maximum drawdown	2.22	—	—
Martin ratio Return relative to average drawdown	7.45	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	WAIIX	FFNYX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.27	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.08	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.40	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.64	2.39	-1.75

Drawdowns

WAIIX vs. FFNYX - Drawdown Comparison

The maximum WAIIX drawdown since its inception was -16.55%, which is greater than FFNYX's maximum drawdown of -0.69%. Use the drawdown chart below to compare losses from any high point for WAIIX and FFNYX.

Drawdown Indicators

	WAIIX	FFNYX	Difference
Max Drawdown Largest peak-to-trough decline	-16.55%	-0.69%	-15.86%
Max Drawdown (1Y) Largest decline over 1 year	-2.18%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-5.85%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-15.99%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-15.99%	—	—
Current Drawdown Current decline from peak	-2.10%	-0.10%	-2.00%
Average Drawdown Average peak-to-trough decline	-3.83%	-0.18%	-3.65%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.65%	—	—

Volatility

Volatility by Period

	WAIIX	FFNYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.96%	—	—
Volatility (6M) Calculated over the trailing 6-month period	2.40%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	3.48%	1.90%	+1.58%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.39%	1.90%	+4.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.66%	1.90%	+3.76%

WAIIX vs. FFNYX - Expense Ratio Comparison

WAIIX has a 0.54% expense ratio, which is higher than FFNYX's 0.05% expense ratio.

Dividends

WAIIX vs. FFNYX - Dividend Comparison

WAIIX's dividend yield for the trailing twelve months is around 3.45%, 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%
WAIIX Western Asset Inflation Indexed Plus Bond Fund	3.45%	4.12%	3.44%	2.80%	6.69%	12.25%	1.38%	2.18%	2.82%	2.03%	1.30%	0.37%

Frequently Asked Questions

Can I hold both WAIIX and FFNYX in my portfolio?

WAIIX and FFNYX have a correlation of 0.65, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.