CSIBX vs. SSASX

Last updated Jun 23, 2026

CSIBX (Calvert Bond Fund) and SSASX (State Street Income Fund) are both Intermediate Core-Plus Bond funds. Over the past 5 years, CSIBX returned 0.58%/yr vs -0.82%/yr for SSASX. With a 0.96 correlation, they move nearly in lockstep. CSIBX charges 0.73%/yr vs 0.20%/yr for SSASX.

Performance

CSIBX vs. SSASX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calvert Bond Fund (CSIBX) and State Street Income Fund (SSASX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

CSIBX

• 1D: 0.21%
• 1M: 0.97%
• YTD: 0.16%
• 6M: 0.59%
• 1Y: 4.87%
• 3Y*: 4.67%
• 5Y*: 0.58%
• 10Y*: 2.18%

SSASX

• 1D: 0.20%
• 1M: 0.97%
• YTD: -0.00%
• 6M: 0.42%
• 1Y: 4.47%
• 3Y*: 2.98%
• 5Y*: -0.82%
• 10Y*: —

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

CSIBX vs. SSASX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
CSIBX Calvert Bond Fund	0.16%	7.93%	2.45%	6.55%	-12.85%	1.08%
SSASX State Street Income Fund	-0.00%	7.49%	-0.95%	4.83%	-13.74%	0.59%

Correlation

The correlation between CSIBX and SSASX is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (All Time) Calculated using the full available price history since May 24, 2021	0.96

The correlation between CSIBX and SSASX has been stable across timeframes, ranging from 0.96 to 0.96 - a consistent structural relationship.

Return for Risk

CSIBX vs. SSASX — Risk / Return Rank

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

CSIBX

CSIBX Risk / Return Rank: 21
CSIBX Sharpe Ratio Rank: 23
CSIBX Sortino Ratio Rank: 23
CSIBX Omega Ratio Rank: 21
CSIBX Calmar Ratio Rank: 21
CSIBX Martin Ratio Rank: 19

SSASX

SSASX Risk / Return Rank: 17
SSASX Sharpe Ratio Rank: 18
SSASX Sortino Ratio Rank: 18
SSASX Omega Ratio Rank: 16
SSASX Calmar Ratio Rank: 16
SSASX Martin Ratio Rank: 14

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.

CSIBX vs. SSASX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calvert Bond Fund (CSIBX) and State Street Income Fund (SSASX). 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.

	CSIBX	SSASX	Difference
Sharpe ratio: Return per unit of total volatility	1.27	1.11	+0.16
Sortino ratio: Return per unit of downside risk	1.89	1.67	+0.22
Omega ratio: Gain probability vs. loss probability	1.22	1.20	+0.03
Calmar ratio: Return relative to maximum drawdown	1.58	1.34	+0.24
Martin ratio: Return relative to average drawdown	4.51	3.76	+0.76

CSIBX vs. SSASX - Sharpe Ratio Comparison

The current CSIBX Sharpe Ratio is 1.27, which is comparable to the SSASX Sharpe Ratio of 1.11. The chart below compares the historical Sharpe Ratios of CSIBX and SSASX, 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

CSIBX vs. SSASX - Drawdown Comparison

The maximum CSIBX drawdown since its inception was -17.57%, smaller than the maximum SSASX drawdown of -19.65%. Use the drawdown chart below to compare losses from any high point for CSIBX and SSASX.

Drawdown Indicators

	CSIBX	SSASX	Difference
Max Drawdown Largest peak-to-trough decline	-17.57%	-19.65%	+2.08%
Max Drawdown (1Y) Largest decline over 1 year	-3.14%	-3.42%	+0.28%
Max Drawdown (3Y) Largest decline over 3 years	-5.95%	-7.97%	+2.02%
Max Drawdown (5Y) Largest decline over 5 years	-17.57%	-19.65%	+2.08%
Max Drawdown (10Y) Largest decline over 10 years	-17.57%	—	—
Current Drawdown Current decline from peak	-1.59%	-5.26%	+3.67%
Average Drawdown Average peak-to-trough decline	-2.05%	-9.63%	+7.58%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.10%	1.22%	-0.12%

Volatility

CSIBX vs. SSASX - Volatility Comparison

Calvert Bond Fund (CSIBX) and State Street Income Fund (SSASX) have volatilities of 1.26% and 1.26%, 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

	CSIBX	SSASX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.26%	1.26%	0.00%
Volatility (6M) Calculated over the trailing 6-month period	3.02%	2.98%	+0.04%
Volatility (1Y) Calculated over the trailing 1-year period	3.90%	4.12%	-0.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.51%	6.50%	-0.99%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.56%	6.47%	-1.91%

CSIBX vs. SSASX - Expense Ratio Comparison

CSIBX has a 0.73% expense ratio, which is higher than SSASX's 0.20% expense ratio.

Dividends

CSIBX vs. SSASX - Dividend Comparison

CSIBX's dividend yield for the trailing twelve months is around 4.31%, more than SSASX's 4.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CSIBX Calvert Bond Fund	4.31%	4.35%	4.18%	3.28%	2.34%	3.12%	3.39%	3.43%	2.49%	2.22%	2.58%	2.45%
SSASX State Street Income Fund	4.00%	4.01%	2.76%	2.86%	2.48%	3.77%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both CSIBX and SSASX in my portfolio?

With a correlation of 0.96, CSIBX and SSASX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, CSIBX or SSASX?

SSASX has higher volatility (1.26%) compared to CSIBX (1.26%). In terms of maximum drawdown, CSIBX dropped -17.57% vs SSASX's -19.65%.

Which has better risk-adjusted returns?

CSIBX currently has the higher Sharpe Ratio (1.27 vs 1.11), 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.