CGBIX vs. SSASX

Last updated Jun 24, 2026

CGBIX (Calvert Green Bond Fund) and SSASX (State Street Income Fund) are both Intermediate Core-Plus Bond funds. Over the past 5 years, CGBIX returned 0.29%/yr vs -0.82%/yr for SSASX. Their correlation of 0.94 suggests significant overlap in exposure. CGBIX charges 0.48%/yr vs 0.20%/yr for SSASX.

Performance

CGBIX vs. SSASX - Performance Comparison

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

Returns By Period

In the year-to-date period, CGBIX achieves a 0.12% return, which is significantly higher than SSASX's -0.31% return.

CGBIX

• 1D: -0.28%
• 1M: 0.59%
• YTD: 0.12%
• 6M: 0.67%
• 1Y: 4.33%
• 3Y*: 4.68%
• 5Y*: 0.29%
• 10Y*: 1.82%

SSASX

• 1D: -0.31%
• 1M: 0.66%
• YTD: -0.31%
• 6M: 0.11%
• 1Y: 3.94%
• 3Y*: 2.87%
• 5Y*: -0.82%
• 10Y*: —

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

CGBIX vs. SSASX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
CGBIX Calvert Green Bond Fund	0.12%	7.90%	2.00%	6.14%	-13.08%	0.38%
SSASX State Street Income Fund	-0.31%	7.49%	-0.95%	4.83%	-13.74%	0.59%

Correlation

The correlation between CGBIX 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	0.94
Correlation (All Time) Calculated using the full available price history since May 24, 2021	0.94

The correlation between CGBIX and SSASX has been stable across timeframes, ranging from 0.94 to 0.96 - a consistent structural relationship.

Return for Risk

CGBIX vs. SSASX — Risk / Return Rank

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

CGBIX

CGBIX Risk / Return Rank: 24
CGBIX Sharpe Ratio Rank: 25
CGBIX Sortino Ratio Rank: 26
CGBIX Omega Ratio Rank: 24
CGBIX Calmar Ratio Rank: 24
CGBIX Martin Ratio Rank: 21

SSASX

SSASX Risk / Return Rank: 14
SSASX Sharpe Ratio Rank: 15
SSASX Sortino Ratio Rank: 15
SSASX Omega Ratio Rank: 14
SSASX Calmar Ratio Rank: 14
SSASX Martin Ratio Rank: 13

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.

CGBIX vs. SSASX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calvert Green Bond Fund (CGBIX) 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.

	CGBIX	SSASX	Difference
Sharpe ratio: Return per unit of total volatility	1.33	1.01	+0.32
Sortino ratio: Return per unit of downside risk	2.00	1.51	+0.49
Omega ratio: Gain probability vs. loss probability	1.24	1.18	+0.06
Calmar ratio: Return relative to maximum drawdown	1.66	1.22	+0.44
Martin ratio: Return relative to average drawdown	4.74	3.38	+1.36

CGBIX vs. SSASX - Sharpe Ratio Comparison

The current CGBIX Sharpe Ratio is 1.33, which is higher than the SSASX Sharpe Ratio of 1.01. The chart below compares the historical Sharpe Ratios of CGBIX 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

CGBIX vs. SSASX - Drawdown Comparison

The maximum CGBIX drawdown since its inception was -17.46%, smaller than the maximum SSASX drawdown of -19.65%. Use the drawdown chart below to compare losses from any high point for CGBIX and SSASX.

Drawdown Indicators

	CGBIX	SSASX	Difference
Max Drawdown Largest peak-to-trough decline	-17.46%	-19.65%	+2.19%
Max Drawdown (1Y) Largest decline over 1 year	-2.75%	-3.42%	+0.67%
Max Drawdown (3Y) Largest decline over 3 years	-5.10%	-7.97%	+2.87%
Max Drawdown (5Y) Largest decline over 5 years	-17.46%	-19.65%	+2.19%
Max Drawdown (10Y) Largest decline over 10 years	-17.46%	—	—
Current Drawdown Current decline from peak	-1.51%	-5.55%	+4.04%
Average Drawdown Average peak-to-trough decline	-3.51%	-9.63%	+6.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.96%	1.23%	-0.27%

Volatility

CGBIX vs. SSASX - Volatility Comparison

The current volatility for Calvert Green Bond Fund (CGBIX) is 1.06%, while State Street Income Fund (SSASX) has a volatility of 1.18%. This indicates that CGBIX experiences smaller price fluctuations and is considered to be less risky than SSASX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CGBIX	SSASX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.06%	1.18%	-0.12%
Volatility (6M) Calculated over the trailing 6-month period	2.65%	3.00%	-0.35%
Volatility (1Y) Calculated over the trailing 1-year period	3.45%	4.14%	-0.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.97%	6.50%	-1.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.08%	6.47%	-2.39%

CGBIX vs. SSASX - Expense Ratio Comparison

CGBIX has a 0.48% expense ratio, which is higher than SSASX's 0.20% expense ratio.

Dividends

CGBIX vs. SSASX - Dividend Comparison

CGBIX's dividend yield for the trailing twelve months is around 3.77%, less than SSASX's 4.02% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CGBIX Calvert Green Bond Fund	3.77%	4.09%	3.49%	2.37%	1.86%	1.99%	1.85%	2.45%	2.26%	2.54%	3.22%	2.01%
SSASX State Street Income Fund	4.02%	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 CGBIX and SSASX in my portfolio?

With a correlation of 0.96, CGBIX 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, CGBIX or SSASX?

SSASX has higher volatility (1.18%) compared to CGBIX (1.06%). In terms of maximum drawdown, CGBIX dropped -17.46% vs SSASX's -19.65%.

Which has better risk-adjusted returns?

CGBIX currently has the higher Sharpe Ratio (1.33 vs 1.01), 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.