SNSAX vs. SWSBX

Last updated Apr 1, 2026

Compare and contrast key facts about SEI Asset Allocation Trust Defensive Strategy Fund (SNSAX) and Schwab Short-Term Bond Index Fund (SWSBX).

SNSAX is managed by SEI. It was launched on Nov 17, 2003. SWSBX is a passively managed fund by Charles Schwab that tracks the performance of the Bloomberg US Government/Credit 1-5 Year Index. It was launched on Feb 23, 2017.

Performance

SNSAX vs. SWSBX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SEI Asset Allocation Trust Defensive Strategy Fund (SNSAX) and Schwab Short-Term Bond Index Fund (SWSBX). The values are adjusted to include any dividend payments, if applicable.

SNSAX vs. SWSBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SNSAX SEI Asset Allocation Trust Defensive Strategy Fund	0.61%	6.29%	5.12%	4.67%	-3.55%	2.35%	2.72%	6.25%	-0.26%	1.97%
SWSBX Schwab Short-Term Bond Index Fund	-0.16%	6.06%	3.42%	3.95%	-5.89%	-1.28%	4.47%	4.96%	1.34%	0.85%

Returns By Period

In the year-to-date period, SNSAX achieves a 0.61% return, which is significantly higher than SWSBX's -0.16% return.

SNSAX

• 1D: 0.20%
• 1M: -1.21%
• YTD: 0.61%
• 6M: 1.79%
• 1Y: 4.84%
• 3Y*: 5.05%
• 5Y*: 2.96%
• 10Y*: 2.81%

SWSBX

• 1D: 0.10%
• 1M: -0.93%
• YTD: -0.16%
• 6M: 0.78%
• 1Y: 3.74%
• 3Y*: 3.77%
• 5Y*: 1.27%
• 10Y*: —

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

SNSAX vs. SWSBX - Expense Ratio Comparison

SNSAX has a 0.61% expense ratio, which is higher than SWSBX's 0.06% expense ratio.

SNSAX

SEI Asset Allocation Trust Defensive Strategy Fund

SWSBX

Schwab Short-Term Bond Index Fund

Return for Risk

SNSAX vs. SWSBX — Risk / Return Rank

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

SNSAX

SNSAX Risk / Return Rank: 90
SNSAX Sharpe Ratio Rank: 89
SNSAX Sortino Ratio Rank: 85
SNSAX Omega Ratio Rank: 94
SNSAX Calmar Ratio Rank: 90
SNSAX Martin Ratio Rank: 92

SWSBX

SWSBX Risk / Return Rank: 87
SWSBX Sharpe Ratio Rank: 83
SWSBX Sortino Ratio Rank: 90
SWSBX Omega Ratio Rank: 82
SWSBX Calmar Ratio Rank: 91
SWSBX Martin Ratio Rank: 89

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.

SNSAX vs. SWSBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SEI Asset Allocation Trust Defensive Strategy Fund (SNSAX) and Schwab Short-Term Bond Index Fund (SWSBX). 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.

	SNSAX	SWSBX	Difference
Sharpe ratio Return per unit of total volatility	1.83	1.59	+0.24
Sortino ratio Return per unit of downside risk	2.24	2.60	-0.36
Omega ratio Gain probability vs. loss probability	1.50	1.33	+0.17
Calmar ratio Return relative to maximum drawdown	2.58	2.71	-0.14
Martin ratio Return relative to average drawdown	11.02	9.85	+1.17
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SNSAX vs. SWSBX - Sharpe Ratio Comparison

The current SNSAX Sharpe Ratio is 1.83, which is comparable to the SWSBX Sharpe Ratio of 1.59. The chart below compares the historical Sharpe Ratios of SNSAX and SWSBX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SNSAX	SWSBX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.83	1.59	+0.24
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.07	0.43	+0.64
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.10	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.15	0.76	+0.38

Correlation

The correlation between SNSAX and SWSBX is 0.45, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

SNSAX vs. SWSBX - Dividend Comparison

SNSAX's dividend yield for the trailing twelve months is around 3.17%, less than SWSBX's 3.79% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SNSAX SEI Asset Allocation Trust Defensive Strategy Fund	3.17%	3.19%	4.20%	3.08%	3.74%	3.47%	1.88%	2.40%	1.81%	1.85%	1.19%	1.21%
SWSBX Schwab Short-Term Bond Index Fund	3.79%	4.09%	3.66%	2.36%	1.11%	0.97%	1.82%	2.41%	2.12%	1.56%	0.00%	0.00%

Drawdowns

SNSAX vs. SWSBX - Drawdown Comparison

The maximum SNSAX drawdown since its inception was -12.22%, which is greater than SWSBX's maximum drawdown of -9.06%. Use the drawdown chart below to compare losses from any high point for SNSAX and SWSBX.

Drawdown Indicators

	SNSAX	SWSBX	Difference
Max Drawdown Largest peak-to-trough decline	-12.22%	-9.06%	-3.16%
Max Drawdown (1Y) Largest decline over 1 year	-1.96%	-1.54%	-0.42%
Max Drawdown (5Y) Largest decline over 5 years	-6.87%	-9.06%	+2.19%
Max Drawdown (10Y) Largest decline over 10 years	-6.87%	—	—
Current Drawdown Current decline from peak	-1.21%	-1.13%	-0.08%
Average Drawdown Average peak-to-trough decline	-1.84%	-1.81%	-0.03%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.46%	0.42%	+0.04%

Volatility

SNSAX vs. SWSBX - Volatility Comparison

SEI Asset Allocation Trust Defensive Strategy Fund (SNSAX) and Schwab Short-Term Bond Index Fund (SWSBX) have volatilities of 0.76% and 0.73%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SNSAX	SWSBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.76%	0.73%	+0.03%
Volatility (6M) Calculated over the trailing 6-month period	1.28%	1.49%	-0.21%
Volatility (1Y) Calculated over the trailing 1-year period	2.72%	2.40%	+0.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.79%	2.95%	-0.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.57%	2.47%	+0.10%