SHAG vs. SDSI

Last updated Jun 5, 2026

SHAG (WisdomTree Yield Enhanced U.S. Short-Term Aggregate Bond ETF) and SDSI (American Century Short Duration Strategic Income ETF) are both Short-Term Bond funds - SHAG tracks the Bloomberg U.S. Short Aggregate Enhanced Yield Index while SDSI tracks the Bloomberg U.S. 1-3 Year Government/Credit Bond Index. Both are passively managed. Over the past 3 years, SHAG returned 4.72%/yr vs 5.66%/yr for SDSI. Their correlation of 0.80 suggests significant overlap in exposure. SHAG charges 0.12%/yr vs 0.33%/yr for SDSI.

Performance

SHAG vs. SDSI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in WisdomTree Yield Enhanced U.S. Short-Term Aggregate Bond ETF (SHAG) and American Century Short Duration Strategic Income ETF (SDSI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SHAG achieves a 0.48% return, which is significantly lower than SDSI's 0.90% return.

SHAG

• 1D: 0.07%
• 1M: 0.03%
• YTD: 0.48%
• 6M: 0.81%
• 1Y: 3.73%
• 3Y*: 4.72%
• 5Y*: 1.61%
• 10Y*: —

SDSI

• 1D: -0.32%
• 1M: -0.03%
• YTD: 0.90%
• 6M: 1.36%
• 1Y: 4.64%
• 3Y*: 5.66%
• 5Y*: —
• 10Y*: —

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

SHAG vs. SDSI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
SHAG WisdomTree Yield Enhanced U.S. Short-Term Aggregate Bond ETF	0.48%	6.27%	4.30%	4.61%	1.75%
SDSI American Century Short Duration Strategic Income ETF	0.90%	6.54%	5.63%	5.88%	2.05%

Correlation

The correlation between SHAG and SDSI is 0.69, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.69
Correlation (3Y) Calculated over the trailing 3-year period	0.77
Correlation (All Time) Calculated using the full available price history since Oct 14, 2022	0.80

The correlation between SHAG and SDSI shifts across timeframes, from 0.69 (1 year) to 0.80 (all time), reflecting how their relationship changes across market environments.

Return for Risk

SHAG vs. SDSI — Risk / Return Rank

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

SHAG

SHAG Risk / Return Rank: 63
SHAG Sharpe Ratio Rank: 63
SHAG Sortino Ratio Rank: 72
SHAG Omega Ratio Rank: 67
SHAG Calmar Ratio Rank: 55
SHAG Martin Ratio Rank: 56

SDSI

SDSI Risk / Return Rank: 87
SDSI Sharpe Ratio Rank: 87
SDSI Sortino Ratio Rank: 91
SDSI Omega Ratio Rank: 89
SDSI Calmar Ratio Rank: 79
SDSI Martin Ratio Rank: 88

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.

SHAG vs. SDSI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for WisdomTree Yield Enhanced U.S. Short-Term Aggregate Bond ETF (SHAG) and American Century Short Duration Strategic Income ETF (SDSI). 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.

	SHAG	SDSI	Difference
Sharpe ratio: Return per unit of total volatility	2.05	2.83	-0.78
Sortino ratio: Return per unit of downside risk	3.21	4.22	-1.01
Omega ratio: Gain probability vs. loss probability	1.40	1.56	-0.17
Calmar ratio: Return relative to maximum drawdown	2.72	3.98	-1.26
Martin ratio: Return relative to average drawdown	9.70	18.71	-9.01
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SHAG vs. SDSI - Sharpe Ratio Comparison

The current SHAG Sharpe Ratio is 2.05, which is comparable to the SDSI Sharpe Ratio of 2.83. The chart below compares the historical Sharpe Ratios of SHAG and SDSI, 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

	SHAG	SDSI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.05	2.83	-0.78
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.59	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.84	2.55	-1.71

Drawdowns

SHAG vs. SDSI - Drawdown Comparison

The maximum SHAG drawdown since its inception was -9.62%, which is greater than SDSI's maximum drawdown of -1.29%. Use the drawdown chart below to compare losses from any high point for SHAG and SDSI.

Drawdown Indicators

	SHAG	SDSI	Difference
Max Drawdown Largest peak-to-trough decline	-9.62%	-1.29%	-8.33%
Max Drawdown (1Y) Largest decline over 1 year	-1.38%	-1.17%	-0.21%
Max Drawdown (3Y) Largest decline over 3 years	-1.38%	-1.29%	-0.09%
Max Drawdown (5Y) Largest decline over 5 years	-9.62%	—	—
Current Drawdown Current decline from peak	-0.54%	-0.39%	-0.15%
Average Drawdown Average peak-to-trough decline	-1.87%	-0.24%	-1.63%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.39%	0.25%	+0.14%

Volatility

SHAG vs. SDSI - Volatility Comparison

WisdomTree Yield Enhanced U.S. Short-Term Aggregate Bond ETF (SHAG) has a higher volatility of 0.60% compared to American Century Short Duration Strategic Income ETF (SDSI) at 0.52%. This indicates that SHAG's price experiences larger fluctuations and is considered to be riskier than SDSI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SHAG	SDSI	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.60%	0.52%	+0.08%
Volatility (6M) Calculated over the trailing 6-month period	1.31%	1.18%	+0.13%
Volatility (1Y) Calculated over the trailing 1-year period	1.84%	1.67%	+0.17%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.75%	2.28%	+0.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.58%	2.28%	+0.30%

SHAG vs. SDSI - Expense Ratio Comparison

SHAG has a 0.12% expense ratio, which is lower than SDSI's 0.33% expense ratio.

Dividends

SHAG vs. SDSI - Dividend Comparison

SHAG's dividend yield for the trailing twelve months is around 4.28%, less than SDSI's 4.43% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
SDSI American Century Short Duration Strategic Income ETF	4.43%	4.91%	5.49%	5.37%	0.98%	0.00%	0.00%	0.00%	0.00%	0.00%
SHAG WisdomTree Yield Enhanced U.S. Short-Term Aggregate Bond ETF	4.28%	4.33%	4.49%	3.04%	1.38%	0.92%	2.33%	2.71%	2.56%	0.77%

Frequently Asked Questions

Can I hold both SHAG and SDSI in my portfolio?

SHAG and SDSI have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SHAG or SDSI?

SHAG has higher volatility (0.60%) compared to SDSI (0.52%). In terms of maximum drawdown, SHAG dropped -9.62% vs SDSI's -1.29%.

Which ETF is better, SHAG or SDSI?

On 3-year performance, SDSI leads with 5.66% vs 4.72% for SHAG. On fees, SHAG is cheaper at 0.12% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SHAG or SDSI?

Over the 3-year period, SDSI has performed better with a 5.66% return vs 4.72%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SHAG or SDSI?

SHAG is cheaper with a 0.12% expense ratio, compared with 0.33% for SDSI.

Which ETF pays a higher dividend yield, SHAG or SDSI?

SDSI has the higher dividend yield at 4.43%, compared with 4.28% for SHAG.

What is the main difference between SHAG and SDSI?

SHAG tracks Bloomberg U.S. Short Aggregate Enhanced Yield Index, while SDSI tracks Bloomberg U.S. 1-3 Year Government/Credit Bond Index. They also come from different issuers: WisdomTree and American Century. Their fees differ too: 0.12% for SHAG and 0.33% for SDSI.

Which has better risk-adjusted returns?

SDSI currently has the higher Sharpe Ratio (2.83 vs 2.05), 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.