SEBFX vs. OPSIX

Last updated Jun 3, 2026

SEBFX (Saturna Sustainable Bond Fund) and OPSIX (Invesco Global Strategic Income Fund) are both Global Bonds funds. Over the past 10 years, SEBFX returned 2.26%/yr vs 2.01%/yr for OPSIX. A 0.60 correlation means they provide meaningful diversification when combined. SEBFX charges 0.65%/yr vs 1.00%/yr for OPSIX.

Performance

SEBFX vs. OPSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Saturna Sustainable Bond Fund (SEBFX) and Invesco Global Strategic Income Fund (OPSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SEBFX achieves a 1.70% return, which is significantly higher than OPSIX's -2.24% return. Over the past 10 years, SEBFX has outperformed OPSIX with an annualized return of 2.26%, while OPSIX has yielded a comparatively lower 2.01% annualized return.

SEBFX

• 1D: 0.00%
• 1M: 0.31%
• YTD: 1.70%
• 6M: 2.19%
• 1Y: 6.91%
• 3Y*: 5.00%
• 5Y*: 1.22%
• 10Y*: 2.26%

OPSIX

• 1D: 0.32%
• 1M: 1.75%
• YTD: -2.24%
• 6M: -1.49%
• 1Y: 3.49%
• 3Y*: 5.41%
• 5Y*: 0.70%
• 10Y*: 2.01%

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

SEBFX vs. OPSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SEBFX Saturna Sustainable Bond Fund	1.70%	10.10%	-0.75%	6.95%	-8.54%	-1.77%	6.86%	7.18%	-2.95%	5.90%
OPSIX Invesco Global Strategic Income Fund	-2.24%	11.76%	2.79%	7.62%	-12.37%	-3.32%	3.52%	10.60%	-4.67%	6.22%

Correlation

The correlation between SEBFX and OPSIX is 0.69, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.69
Correlation (3Y) Calculated over the trailing 3-year period	0.70
Correlation (5Y) Calculated over the trailing 5-year period	0.70
Correlation (10Y) Calculated over the trailing 10-year period	0.60
Correlation (All Time) Calculated using the full available price history since Jan 5, 2016	0.60

The correlation between SEBFX and OPSIX shifts across timeframes, from 0.60 (all time) to 0.70 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

SEBFX vs. OPSIX — Risk / Return Rank

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

SEBFX

SEBFX Risk / Return Rank: 47
SEBFX Sharpe Ratio Rank: 50
SEBFX Sortino Ratio Rank: 51
SEBFX Omega Ratio Rank: 58
SEBFX Calmar Ratio Rank: 37
SEBFX Martin Ratio Rank: 38

OPSIX

OPSIX Risk / Return Rank: 5
OPSIX Sharpe Ratio Rank: 5
OPSIX Sortino Ratio Rank: 5
OPSIX Omega Ratio Rank: 5
OPSIX Calmar Ratio Rank: 5
OPSIX Martin Ratio Rank: 5

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.

SEBFX vs. OPSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Saturna Sustainable Bond Fund (SEBFX) and Invesco Global Strategic Income Fund (OPSIX). 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.

	SEBFX	OPSIX	Difference
Sharpe ratio Return per unit of total volatility	2.08	0.37	+1.71
Sortino ratio Return per unit of downside risk	2.98	0.58	+2.40
Omega ratio Gain probability vs. loss probability	1.42	1.08	+0.34
Calmar ratio Return relative to maximum drawdown	2.34	0.40	+1.93
Martin ratio Return relative to average drawdown	8.26	1.32	+6.94
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SEBFX vs. OPSIX - Sharpe Ratio Comparison

The current SEBFX Sharpe Ratio is 2.08, which is higher than the OPSIX Sharpe Ratio of 0.37. The chart below compares the historical Sharpe Ratios of SEBFX and OPSIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	SEBFX	OPSIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.08	0.37	+1.71
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.31	0.10	+0.21
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.63	0.29	+0.34
Sharpe Ratio (All Time) Calculated using the full available price history	0.67	1.01	-0.34

Drawdowns

SEBFX vs. OPSIX - Drawdown Comparison

The maximum SEBFX drawdown since its inception was -13.51%, smaller than the maximum OPSIX drawdown of -25.45%. Use the drawdown chart below to compare losses from any high point for SEBFX and OPSIX.

Drawdown Indicators

	SEBFX	OPSIX	Difference
Max Drawdown Largest peak-to-trough decline	-13.51%	-25.45%	+11.94%
Max Drawdown (1Y) Largest decline over 1 year	-3.01%	-8.71%	+5.70%
Max Drawdown (3Y) Largest decline over 3 years	-5.51%	-8.71%	+3.20%
Max Drawdown (5Y) Largest decline over 5 years	-13.51%	-21.80%	+8.29%
Max Drawdown (10Y) Largest decline over 10 years	-13.51%	-25.13%	+11.62%
Current Drawdown Current decline from peak	-0.73%	-3.41%	+2.68%
Average Drawdown Average peak-to-trough decline	-2.93%	-2.92%	-0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.85%	2.53%	-1.68%

Volatility

SEBFX vs. OPSIX - Volatility Comparison

The current volatility for Saturna Sustainable Bond Fund (SEBFX) is 1.02%, while Invesco Global Strategic Income Fund (OPSIX) has a volatility of 3.55%. This indicates that SEBFX experiences smaller price fluctuations and is considered to be less risky than OPSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SEBFX	OPSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.02%	3.55%	-2.53%
Volatility (6M) Calculated over the trailing 6-month period	2.82%	8.11%	-5.29%
Volatility (1Y) Calculated over the trailing 1-year period	3.46%	9.50%	-6.04%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.93%	7.34%	-3.41%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.62%	7.14%	-3.52%

SEBFX vs. OPSIX - Expense Ratio Comparison

SEBFX has a 0.65% expense ratio, which is lower than OPSIX's 1.00% expense ratio.

Dividends

SEBFX vs. OPSIX - Dividend Comparison

SEBFX's dividend yield for the trailing twelve months is around 3.82%, more than OPSIX's 3.76% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OPSIX Invesco Global Strategic Income Fund	3.76%	4.39%	5.02%	4.03%	2.89%	2.63%	2.71%	4.57%	5.28%	4.24%	3.51%	4.50%
SEBFX Saturna Sustainable Bond Fund	3.82%	3.89%	3.28%	3.68%	0.65%	2.61%	0.89%	2.60%	3.05%	2.75%	2.61%	0.00%

Frequently Asked Questions

Can I hold both SEBFX and OPSIX in my portfolio?

SEBFX and OPSIX have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SEBFX or OPSIX?

OPSIX has higher volatility (3.55%) compared to SEBFX (1.02%). In terms of maximum drawdown, SEBFX dropped -13.51% vs OPSIX's -25.45%.

Which has better risk-adjusted returns?

SEBFX currently has the higher Sharpe Ratio (2.08 vs 0.37), 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.