FFNYX vs. ACITX

Last updated Apr 2, 2026

Compare and contrast key facts about Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund (FFNYX) and American Century Inflation-Adjusted Bond Fund (ACITX).

FFNYX is a passively managed fund by Fidelity that tracks the performance of the Bloomberg US Treasury 0-5 Year TIPS Index. It was launched on Nov 4, 2025. ACITX is managed by American Century. It was launched on Feb 9, 1997.

Performance

FFNYX vs. ACITX - Performance Comparison

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

FFNYX vs. ACITX - Yearly Performance Comparison

	2026 (YTD)
FFNYX Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund	-0.10%
ACITX American Century Inflation-Adjusted Bond Fund	-0.56%

Returns By Period

FFNYX

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

ACITX

• 1D: 0.00%
• 1M: -1.12%
• YTD: 0.28%
• 6M: 0.01%
• 1Y: 2.71%
• 3Y*: 2.70%
• 5Y*: 1.10%
• 10Y*: 2.56%

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

FFNYX vs. ACITX - Expense Ratio Comparison

FFNYX has a 0.05% expense ratio, which is lower than ACITX's 0.46% expense ratio.

ACITX

American Century Inflation-Adjusted Bond Fund

FFNYX

Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund

Return for Risk

FFNYX vs. ACITX — Risk / Return Rank

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

ACITX

ACITX Risk / Return Rank: 24
ACITX Sharpe Ratio Rank: 24
ACITX Sortino Ratio Rank: 20
ACITX Omega Ratio Rank: 18
ACITX Calmar Ratio Rank: 33
ACITX Martin Ratio Rank: 27

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.

FFNYX vs. ACITX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund (FFNYX) and American Century Inflation-Adjusted Bond Fund (ACITX). 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.

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

Sharpe Ratios by Period

	FFNYX	ACITX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	0.67	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.18	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.47	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.99	0.75	-1.74

Correlation

The correlation between FFNYX and ACITX is 0.85, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

FFNYX vs. ACITX - Dividend Comparison

FFNYX has not paid dividends to shareholders, while ACITX's dividend yield for the trailing twelve months is around 4.29%.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FFNYX Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
ACITX American Century Inflation-Adjusted Bond Fund	4.29%	4.30%	2.19%	4.44%	7.34%	4.47%	1.16%	2.45%	4.31%	3.47%	2.27%	0.99%

Drawdowns

FFNYX vs. ACITX - Drawdown Comparison

The maximum FFNYX drawdown since its inception was -0.69%, smaller than the maximum ACITX drawdown of -15.50%. Use the drawdown chart below to compare losses from any high point for FFNYX and ACITX.

Drawdown Indicators

	FFNYX	ACITX	Difference
Max Drawdown Largest peak-to-trough decline	-0.69%	-15.50%	+14.81%
Max Drawdown (1Y) Largest decline over 1 year	—	-3.05%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-15.50%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-15.50%	—
Current Drawdown Current decline from peak	-0.30%	-2.27%	+1.97%
Average Drawdown Average peak-to-trough decline	-0.39%	-3.25%	+2.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.95%	—

Volatility

Volatility by Period

	FFNYX	ACITX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	1.38%	—
Volatility (6M) Calculated over the trailing 6-month period	—	2.22%	—
Volatility (1Y) Calculated over the trailing 1-year period	2.38%	4.07%	-1.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.38%	6.15%	-3.77%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.38%	5.52%	-3.14%