YEAR vs. NUSB

Last updated Jun 5, 2026

YEAR (AB Ultra Short Income ETF) and NUSB (Nuveen Ultra Short Income ETF) are both Ultrashort Bond funds. Both are actively managed. Over the past year, YEAR returned 3.75% vs 4.30% for NUSB. At a 0.28 correlation, their price movements are largely independent. YEAR charges 0.25%/yr vs 0.17%/yr for NUSB.

Performance

YEAR vs. NUSB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AB Ultra Short Income ETF (YEAR) and Nuveen Ultra Short Income ETF (NUSB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, YEAR achieves a 1.19% return, which is significantly lower than NUSB's 1.54% return.

YEAR

• 1D: 0.06%
• 1M: 0.22%
• YTD: 1.19%
• 6M: 1.49%
• 1Y: 3.75%
• 3Y*: 4.96%
• 5Y*: —
• 10Y*: —

NUSB

• 1D: 0.02%
• 1M: 0.32%
• YTD: 1.54%
• 6M: 1.86%
• 1Y: 4.30%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

YEAR vs. NUSB - Yearly Performance Comparison

	2026 (YTD)	2025	2024
YEAR AB Ultra Short Income ETF	1.19%	4.69%	4.41%
NUSB Nuveen Ultra Short Income ETF	1.54%	4.71%	4.50%

Correlation

The correlation between YEAR and NUSB is 0.29, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.29
Correlation (All Time) Calculated using the full available price history since Mar 7, 2024	0.28

Return for Risk

YEAR vs. NUSB — Risk / Return Rank

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

YEAR

YEAR Risk / Return Rank: 98
YEAR Sharpe Ratio Rank: 97
YEAR Sortino Ratio Rank: 99
YEAR Omega Ratio Rank: 98
YEAR Calmar Ratio Rank: 98
YEAR Martin Ratio Rank: 98

NUSB

NUSB Risk / Return Rank: 100
NUSB Sharpe Ratio Rank: 100
NUSB Sortino Ratio Rank: 100
NUSB Omega Ratio Rank: 100
NUSB Calmar Ratio Rank: 100
NUSB Martin Ratio Rank: 100

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.

YEAR vs. NUSB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AB Ultra Short Income ETF (YEAR) and Nuveen Ultra Short Income ETF (NUSB). 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.

	YEAR	NUSB	Difference
Sharpe ratio: Return per unit of total volatility	4.88	11.76	-6.88
Sortino ratio: Return per unit of downside risk	8.95	32.40	-23.45
Omega ratio: Gain probability vs. loss probability	2.17	9.15	-6.98
Calmar ratio: Return relative to maximum drawdown	16.58	72.63	-56.06
Martin ratio: Return relative to average drawdown	73.60	395.91	-322.32
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

YEAR vs. NUSB - Sharpe Ratio Comparison

The current YEAR Sharpe Ratio is 4.88, which is lower than the NUSB Sharpe Ratio of 11.76. The chart below compares the historical Sharpe Ratios of YEAR and NUSB, 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

	YEAR	NUSB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	4.88	11.76	-6.88
Sharpe Ratio (All Time) Calculated using the full available price history	4.27	12.55	-8.28

Drawdowns

YEAR vs. NUSB - Drawdown Comparison

The maximum YEAR drawdown since its inception was -0.61%, which is greater than NUSB's maximum drawdown of -0.16%. Use the drawdown chart below to compare losses from any high point for YEAR and NUSB.

Drawdown Indicators

	YEAR	NUSB	Difference
Max Drawdown Largest peak-to-trough decline	-0.61%	-0.16%	-0.45%
Max Drawdown (1Y) Largest decline over 1 year	-0.23%	-0.06%	-0.17%
Max Drawdown (3Y) Largest decline over 3 years	-0.43%	—	—
Current Drawdown Current decline from peak	-0.04%	0.00%	-0.04%
Average Drawdown Average peak-to-trough decline	-0.06%	-0.00%	-0.06%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.05%	0.01%	+0.04%

Volatility

YEAR vs. NUSB - Volatility Comparison

AB Ultra Short Income ETF (YEAR) has a higher volatility of 0.19% compared to Nuveen Ultra Short Income ETF (NUSB) at 0.09%. This indicates that YEAR's price experiences larger fluctuations and is considered to be riskier than NUSB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	YEAR	NUSB	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.19%	0.09%	+0.10%
Volatility (6M) Calculated over the trailing 6-month period	0.51%	0.23%	+0.28%
Volatility (1Y) Calculated over the trailing 1-year period	0.78%	0.37%	+0.41%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.15%	0.39%	+0.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.15%	0.39%	+0.76%

YEAR vs. NUSB - Expense Ratio Comparison

YEAR has a 0.25% expense ratio, which is higher than NUSB's 0.17% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

YEAR vs. NUSB - Dividend Comparison

YEAR's dividend yield for the trailing twelve months is around 4.14%, less than NUSB's 4.30% yield.

Position	TTM	2025	2024	2023	2022
NUSB Nuveen Ultra Short Income ETF	4.30%	4.51%	3.61%	0.00%	0.00%
YEAR AB Ultra Short Income ETF	4.14%	4.33%	5.16%	5.00%	1.19%

Frequently Asked Questions

Can I hold both YEAR and NUSB in my portfolio?

YEAR and NUSB have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, YEAR or NUSB?

YEAR has higher volatility (0.19%) compared to NUSB (0.09%). In terms of maximum drawdown, YEAR dropped -0.61% vs NUSB's -0.16%.

Which ETF is better, YEAR or NUSB?

On 1-year performance, NUSB leads with 4.30% vs 3.75% for YEAR. On fees, NUSB is cheaper at 0.17% per year. On volatility, NUSB has been the lower-risk option at 0.09%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, YEAR or NUSB?

Over the 1-year period, NUSB has performed better with a 4.30% return vs 3.75%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, YEAR or NUSB?

NUSB is cheaper with a 0.17% expense ratio, compared with 0.25% for YEAR.

Which ETF pays a higher dividend yield, YEAR or NUSB?

NUSB has the higher dividend yield at 4.30%, compared with 4.14% for YEAR.

What is the main difference between YEAR and NUSB?

They also come from different issuers: AllianceBernstein and Nuveen. Their fees differ too: 0.25% for YEAR and 0.17% for NUSB.

Which has better risk-adjusted returns?

NUSB currently has the higher Sharpe Ratio (11.76 vs 4.88), 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.