CDSRX vs. QS

Last updated Aug 1, 2026

CDSRX (Calvert Short Duration Income Fund Class R6) is Short-Term Bond fund managed by Calvert, while QS (QuantumScape Corporation) is a stock. Over the past 5 years, CDSRX returned 2.74%/yr vs -25.61%/yr for QS. Their 0.15 correlation means their historical movements had little consistent relationship.

Performance

CDSRX vs. QS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calvert Short Duration Income Fund Class R6 (CDSRX) and QuantumScape Corporation (QS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CDSRX achieves a 0.69% return, which is significantly higher than QS's -49.90% 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%

QS

• 1D: -0.19%
• 1M: -26.17%
• 6M: -41.02%
• YTD: -49.90%
• 1Y: -36.80%
• 3Y*: -25.29%
• 5Y*: -25.61%
• 10Y*: —
• ALL TIME*: -24.02%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
CDSRX Calvert Short Duration Income Fund Class R6	$0.00	$0.00	$0.00
QS QuantumScape Corporation	$177.64M	$171.31M	$186.89M

CDSRX vs. QS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
CDSRX Calvert Short Duration Income Fund Class R6	0.69%	6.35%	5.74%	6.87%	-5.07%	1.20%	0.96%
QS QuantumScape Corporation	-49.90%	100.77%	-25.32%	22.57%	-74.45%	-73.72%	240.52%

Correlation

The correlation between CDSRX and QS is 0.18, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.18
Correlation (3Y) Balances recent behavior with more history.	0.11
Correlation (5Y) Shows whether the relationship held over a longer period.	0.17
Correlation (All Time) Calculated using the full available price history since Nov 27, 2020	0.15

Return for Risk

CDSRX vs. QS — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

CDSRX

CDSRX Risk / Return Rank: 80
CDSRX Sharpe Ratio Rank: 77
CDSRX Sortino Ratio Rank: 89
CDSRX Omega Ratio Rank: 83
CDSRX Calmar Ratio Rank: 75
CDSRX Martin Ratio Rank: 77

QS

QS Risk / Return Rank: 26
QS Sharpe Ratio Rank: 23
QS Sortino Ratio Rank: 27
QS Omega Ratio Rank: 28
QS Calmar Ratio Rank: 25
QS Martin Ratio Rank: 27

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

CDSRX vs. QS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calvert Short Duration Income Fund Class R6 (CDSRX) and QuantumScape Corporation (QS). 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	QS	Difference
Sharpe ratio: Return per unit of total volatility	1.85	-0.46	+2.31
Sortino ratio: Return per unit of downside risk	3.32	-0.26	+3.58
Omega ratio: Gain probability vs. loss probability	1.40	0.97	+0.43
Calmar ratio: Return relative to maximum drawdown	2.49	-0.54	+3.03
Martin ratio: Return relative to average drawdown	9.47	-0.84	+10.30

CDSRX vs. QS - Sharpe Ratio Comparison

The current CDSRX Sharpe Ratio is 1.85, which is higher than the QS Sharpe Ratio of -0.46. The chart below compares the historical Sharpe Ratios of CDSRX and QS, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

CDSRX vs. QS - Drawdown Comparison

The maximum CDSRX drawdown since its inception was -9.96%, smaller than the maximum QS drawdown of -97.36%. Use the drawdown chart below to compare losses from any high point for CDSRX and QS.

Drawdown Indicators

	CDSRX	QS	Difference
Max Drawdown Largest peak-to-trough decline	-9.96%	-97.36%	+87.40%
Max Drawdown (1Y) Largest decline over 1 year	-1.56%	-73.51%	+71.95%
Max Drawdown (3Y) Largest decline over 3 years	-1.56%	-73.51%	+71.95%
Max Drawdown (5Y) Largest decline over 5 years	-7.91%	-91.45%	+83.54%
Current Drawdown Current decline from peak	-0.44%	-96.04%	+95.60%
Average Drawdown Average peak-to-trough decline	-1.35%	-88.92%	+87.57%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.41%	47.08%	-46.67%

Volatility

CDSRX vs. QS - Volatility Comparison

The current volatility for Calvert Short Duration Income Fund Class R6 (CDSRX) is 0.46%, while QuantumScape Corporation (QS) has a volatility of 22.61%. This indicates that CDSRX experiences smaller price fluctuations and is considered to be less risky than QS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CDSRX	QS	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.46%	22.61%	-22.15%
Volatility (6M) Calculated over the trailing 6-month period	1.64%	53.79%	-52.15%
Volatility (1Y) Calculated over the trailing 1-year period	2.11%	85.67%	-83.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.44%	86.23%	-83.79%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.64%	97.93%	-95.29%

Dividends

CDSRX vs. QS - Dividend Comparison

CDSRX's dividend yield for the trailing twelve months is around 4.27%, while QS has not paid dividends to shareholders.

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%
QS QuantumScape Corporation	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both CDSRX and QS in my portfolio?

CDSRX and QS have a correlation of 0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CDSRX or QS?

QS has higher volatility (22.61%) compared to CDSRX (0.46%). In terms of maximum drawdown, CDSRX dropped -9.96% vs QS's -97.36%.

Which has better risk-adjusted returns?

CDSRX currently has the higher Sharpe Ratio (1.85 vs -0.46), 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.