CDSRX vs. VSDM
CDSRX (Calvert Short Duration Income Fund Class R6) and VSDM (Vanguard Short Duration Tax-Exempt Bond ETF) are both funds - CDSRX is a Short-Term Bond fund managed by Calvert, while VSDM is a Municipal Bonds fund actively managed by Vanguard. Over the past year, CDSRX returned 3.01% vs 2.98% for VSDM. Their 0.51 correlation means they have sometimes moved together and sometimes differently. CDSRX charges 0.45%/yr vs 0.12%/yr for VSDM.
Performance
CDSRX vs. VSDM - Performance Comparison
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Returns By Period
In the year-to-date period, CDSRX achieves a 0.69% return, which is significantly lower than VSDM's 0.99% return.
CDSRX
- 1D
- 0.06%
- 1M
- -0.38%
- 6M
- 0.24%
- YTD
- 0.69%
- 1Y
- 3.01%
- 3Y*
- 5.45%
- 5Y*
- 2.74%
- 10Y*
- —
- ALL TIME*
- 3.34%
VSDM
- 1D
- -0.03%
- 1M
- -0.56%
- 6M
- 0.25%
- YTD
- 0.99%
- 1Y
- 2.98%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- 3.70%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $8.89M | $8.72M | $8.51M |
CDSRX vs. VSDM - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
CDSRX Calvert Short Duration Income Fund Class R6 | 0.69% | 6.35% | 0.95% |
VSDM Vanguard Short Duration Tax-Exempt Bond ETF | 0.99% | 5.39% | -0.10% |
Correlation
The correlation between CDSRX and VSDM is 0.51, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.51 |
Correlation (All Time) Calculated using the full available price history since Nov 21, 2024 | 0.51 |
The correlation between CDSRX and VSDM has been stable across timeframes, ranging from 0.51 to 0.51 - a consistent structural relationship.
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Return for Risk
CDSRX vs. VSDM — Risk / Return Rank
CDSRX
VSDM
CDSRX vs. VSDM - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Calvert Short Duration Income Fund Class R6 (CDSRX) and Vanguard Short Duration Tax-Exempt Bond ETF (VSDM). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| CDSRX | VSDM | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.53 | ||
| Sortino ratioReturn per unit of downside risk | -0.01 | ||
| Omega ratioGain probability vs. loss probability | 1.40 | 1.55 | -0.15 |
| Calmar ratioReturn relative to maximum drawdown | 2.49 | 2.27 | +0.22 |
| Martin ratioReturn relative to average drawdown | 9.47 | 7.63 | +1.84 |
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Drawdowns
CDSRX vs. VSDM - Drawdown Comparison
The maximum CDSRX drawdown since its inception was -9.96%, which is greater than VSDM's maximum drawdown of -1.81%. Use the drawdown chart below to compare losses from any high point for CDSRX and VSDM.
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Drawdown Indicators
| CDSRX | VSDM | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -9.96% | -1.81% | -8.15% |
Max Drawdown (1Y)Largest decline over 1 year | -1.56% | -1.46% | -0.10% |
Max Drawdown (3Y)Largest decline over 3 years | -1.56% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -7.91% | — | — |
Current DrawdownCurrent decline from peak | -0.44% | -0.60% | +0.16% |
Average DrawdownAverage peak-to-trough decline | -1.35% | -0.31% | -1.04% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.41% | 0.43% | -0.02% |
Volatility
CDSRX vs. VSDM - Volatility Comparison
Calvert Short Duration Income Fund Class R6 (CDSRX) has a higher volatility of 0.46% compared to Vanguard Short Duration Tax-Exempt Bond ETF (VSDM) at 0.41%. This indicates that CDSRX's price experiences larger fluctuations and is considered to be riskier than VSDM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CDSRX | VSDM | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.46% | 0.41% | +0.05% |
Volatility (6M)Calculated over the trailing 6-month period | 1.64% | 1.11% | +0.53% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.11% | 1.40% | +0.71% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.44% | 1.89% | +0.55% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.64% | 1.89% | +0.75% |
CDSRX vs. VSDM - Expense Ratio Comparison
CDSRX has a 0.45% expense ratio, which is higher than VSDM's 0.12% expense ratio.
Dividends
CDSRX vs. VSDM - Dividend Comparison
CDSRX's dividend yield for the trailing twelve months is around 4.27%, more than VSDM's 3.12% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
CDSRX Calvert Short Duration Income Fund Class R6 | 4.27% | 4.55% | 4.98% | 3.52% | 2.21% | 2.56% | 2.88% | 2.75% |
VSDM Vanguard Short Duration Tax-Exempt Bond ETF | 2.87% | 3.06% | 0.35% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
CDSRX and VSDM have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CDSRX has higher volatility (0.46%) compared to VSDM (0.41%). In terms of maximum drawdown, CDSRX dropped -9.96% vs VSDM's -1.81%.
VSDM currently has the higher Sharpe Ratio (2.38 vs 1.85), 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.
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