SWSBX vs. TSDLX

Last updated Apr 2, 2026

Compare and contrast key facts about Schwab Short-Term Bond Index Fund (SWSBX) and T. Rowe Price Short Duration Income Fund (TSDLX).

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. TSDLX is managed by T. Rowe Price. It was launched on Dec 7, 2020.

Performance

SWSBX vs. TSDLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Schwab Short-Term Bond Index Fund (SWSBX) and T. Rowe Price Short Duration Income Fund (TSDLX). The values are adjusted to include any dividend payments, if applicable.

SWSBX vs. TSDLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
SWSBX Schwab Short-Term Bond Index Fund	-0.16%	6.06%	3.42%	3.95%	-5.89%	-1.28%	0.18%
TSDLX T. Rowe Price Short Duration Income Fund	0.08%	10.34%	6.30%	6.07%	-5.69%	0.77%	0.10%

Returns By Period

In the year-to-date period, SWSBX achieves a -0.16% return, which is significantly lower than TSDLX's 0.08% return.

SWSBX

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

TSDLX

• 1D: 0.11%
• 1M: -0.84%
• YTD: 0.08%
• 6M: 2.61%
• 1Y: 8.51%
• 3Y*: 6.94%
• 5Y*: 3.31%
• 10Y*: —

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

SWSBX vs. TSDLX - Expense Ratio Comparison

SWSBX has a 0.06% expense ratio, which is lower than TSDLX's 0.40% expense ratio.

TSDLX

T. Rowe Price Short Duration Income Fund

SWSBX

Schwab Short-Term Bond Index Fund

Return for Risk

SWSBX vs. TSDLX — Risk / Return Rank

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

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

TSDLX

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

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.

SWSBX vs. TSDLX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Schwab Short-Term Bond Index Fund (SWSBX) and T. Rowe Price Short Duration Income Fund (TSDLX). 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.

	SWSBX	TSDLX	Difference
Sharpe ratio Return per unit of total volatility	1.59	3.76	-2.17
Sortino ratio Return per unit of downside risk	2.60	8.03	-5.42
Omega ratio Gain probability vs. loss probability	1.33	2.14	-0.81
Calmar ratio Return relative to maximum drawdown	2.71	7.19	-4.47
Martin ratio Return relative to average drawdown	9.85	29.03	-19.17
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SWSBX vs. TSDLX - Sharpe Ratio Comparison

The current SWSBX Sharpe Ratio is 1.59, which is lower than the TSDLX Sharpe Ratio of 3.76. The chart below compares the historical Sharpe Ratios of SWSBX and TSDLX, 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

	SWSBX	TSDLX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.59	3.76	-2.17
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.43	1.45	-1.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.76	1.46	-0.70

Correlation

The correlation between SWSBX and TSDLX is 0.79, 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

SWSBX vs. TSDLX - Dividend Comparison

SWSBX's dividend yield for the trailing twelve months is around 3.79%, less than TSDLX's 8.42% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
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%
TSDLX T. Rowe Price Short Duration Income Fund	8.42%	8.51%	5.44%	4.21%	1.82%	1.69%	0.00%	0.00%	0.00%	0.00%

Drawdowns

SWSBX vs. TSDLX - Drawdown Comparison

The maximum SWSBX drawdown since its inception was -9.06%, which is greater than TSDLX's maximum drawdown of -7.86%. Use the drawdown chart below to compare losses from any high point for SWSBX and TSDLX.

Drawdown Indicators

	SWSBX	TSDLX	Difference
Max Drawdown Largest peak-to-trough decline	-9.06%	-7.86%	-1.20%
Max Drawdown (1Y) Largest decline over 1 year	-1.54%	-1.26%	-0.28%
Max Drawdown (5Y) Largest decline over 5 years	-9.06%	-7.86%	-1.20%
Current Drawdown Current decline from peak	-1.13%	-1.05%	-0.08%
Average Drawdown Average peak-to-trough decline	-1.81%	-1.83%	+0.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.42%	0.31%	+0.11%

Volatility

SWSBX vs. TSDLX - Volatility Comparison

Schwab Short-Term Bond Index Fund (SWSBX) has a higher volatility of 0.73% compared to T. Rowe Price Short Duration Income Fund (TSDLX) at 0.52%. This indicates that SWSBX's price experiences larger fluctuations and is considered to be riskier than TSDLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SWSBX	TSDLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.73%	0.52%	+0.21%
Volatility (6M) Calculated over the trailing 6-month period	1.49%	1.52%	-0.03%
Volatility (1Y) Calculated over the trailing 1-year period	2.40%	2.40%	0.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.95%	2.30%	+0.65%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.47%	2.24%	+0.23%