MGBJX vs. PYGSX

Last updated Jun 23, 2026

MGBJX (MFS Global Opportunistic Bond Fund) and PYGSX (Payden Global Low Duration Fund) are both Global Bonds funds. Over the past 10 years, MGBJX returned 2.03%/yr vs 2.44%/yr for PYGSX. At a 0.43 correlation, their price movements are largely independent. MGBJX charges 0.68%/yr vs 0.53%/yr for PYGSX.

Performance

MGBJX vs. PYGSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Global Opportunistic Bond Fund (MGBJX) and Payden Global Low Duration Fund (PYGSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MGBJX achieves a 0.89% return, which is significantly higher than PYGSX's 0.64% return. Over the past 10 years, MGBJX has underperformed PYGSX with an annualized return of 2.03%, while PYGSX has yielded a comparatively higher 2.44% annualized return.

MGBJX

• 1D: 0.12%
• 1M: 1.20%
• YTD: 0.89%
• 6M: 1.47%
• 1Y: 4.70%
• 3Y*: 4.82%
• 5Y*: 0.90%
• 10Y*: 2.03%

PYGSX

• 1D: 0.10%
• 1M: 0.29%
• YTD: 0.64%
• 6M: 0.76%
• 1Y: 3.63%
• 3Y*: 5.12%
• 5Y*: 2.63%
• 10Y*: 2.44%

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

MGBJX vs. PYGSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MGBJX MFS Global Opportunistic Bond Fund	0.89%	5.91%	2.45%	8.19%	-11.31%	-2.97%	10.92%	8.56%	-2.04%	7.78%
PYGSX Payden Global Low Duration Fund	0.64%	5.72%	5.19%	5.61%	-3.38%	0.17%	3.14%	4.77%	0.58%	1.90%

Correlation

The correlation between MGBJX and PYGSX is 0.58, 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	0.58
Correlation (3Y) Calculated over the trailing 3-year period	0.60
Correlation (5Y) Calculated over the trailing 5-year period	0.59
Correlation (10Y) Calculated over the trailing 10-year period	0.51
Correlation (All Time) Calculated using the full available price history since Jun 1, 2010	0.43

The correlation between MGBJX and PYGSX shifts across timeframes, from 0.43 (all time) to 0.60 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

MGBJX vs. PYGSX — Risk / Return Rank

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

MGBJX

MGBJX Risk / Return Rank: 24
MGBJX Sharpe Ratio Rank: 25
MGBJX Sortino Ratio Rank: 31
MGBJX Omega Ratio Rank: 28
MGBJX Calmar Ratio Rank: 19
MGBJX Martin Ratio Rank: 18

PYGSX

PYGSX Risk / Return Rank: 77
PYGSX Sharpe Ratio Rank: 80
PYGSX Sortino Ratio Rank: 86
PYGSX Omega Ratio Rank: 88
PYGSX Calmar Ratio Rank: 69
PYGSX Martin Ratio Rank: 63

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.

MGBJX vs. PYGSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Global Opportunistic Bond Fund (MGBJX) and Payden Global Low Duration Fund (PYGSX). 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.

	MGBJX	PYGSX	Difference
Sharpe ratio: Return per unit of total volatility	1.35	2.42	-1.07
Sortino ratio: Return per unit of downside risk	2.17	3.81	-1.64
Omega ratio: Gain probability vs. loss probability	1.26	1.57	-0.31
Calmar ratio: Return relative to maximum drawdown	1.51	3.05	-1.55
Martin ratio: Return relative to average drawdown	4.45	11.65	-7.19

MGBJX vs. PYGSX - Sharpe Ratio Comparison

The current MGBJX Sharpe Ratio is 1.35, which is lower than the PYGSX Sharpe Ratio of 2.42. The chart below compares the historical Sharpe Ratios of MGBJX and PYGSX, 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

MGBJX vs. PYGSX - Drawdown Comparison

The maximum MGBJX drawdown since its inception was -17.96%, which is greater than PYGSX's maximum drawdown of -7.29%. Use the drawdown chart below to compare losses from any high point for MGBJX and PYGSX.

Drawdown Indicators

	MGBJX	PYGSX	Difference
Max Drawdown Largest peak-to-trough decline	-17.96%	-7.29%	-10.67%
Max Drawdown (1Y) Largest decline over 1 year	-3.13%	-1.23%	-1.90%
Max Drawdown (3Y) Largest decline over 3 years	-5.61%	-1.23%	-4.38%
Max Drawdown (5Y) Largest decline over 5 years	-16.67%	-5.38%	-11.29%
Max Drawdown (10Y) Largest decline over 10 years	-17.96%	-7.29%	-10.67%
Current Drawdown Current decline from peak	-0.84%	-0.35%	-0.49%
Average Drawdown Average peak-to-trough decline	-5.61%	-0.49%	-5.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.06%	0.32%	+0.74%

Volatility

MGBJX vs. PYGSX - Volatility Comparison

MFS Global Opportunistic Bond Fund (MGBJX) has a higher volatility of 1.11% compared to Payden Global Low Duration Fund (PYGSX) at 0.59%. This indicates that MGBJX's price experiences larger fluctuations and is considered to be riskier than PYGSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MGBJX	PYGSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.11%	0.59%	+0.52%
Volatility (6M) Calculated over the trailing 6-month period	2.87%	1.17%	+1.70%
Volatility (1Y) Calculated over the trailing 1-year period	3.51%	1.55%	+1.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.36%	1.89%	+2.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.66%	1.75%	+2.91%

MGBJX vs. PYGSX - Expense Ratio Comparison

MGBJX has a 0.68% expense ratio, which is higher than PYGSX's 0.53% expense ratio.

Dividends

MGBJX vs. PYGSX - Dividend Comparison

MGBJX's dividend yield for the trailing twelve months is around 4.74%, more than PYGSX's 4.65% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MGBJX MFS Global Opportunistic Bond Fund	4.74%	4.50%	3.03%	1.99%	3.42%	5.25%	3.61%	2.29%	2.19%	1.59%	1.68%	2.18%
PYGSX Payden Global Low Duration Fund	4.65%	4.63%	4.64%	3.84%	2.14%	1.68%	1.78%	2.74%	2.51%	1.68%	1.19%	1.20%

Frequently Asked Questions

Can I hold both MGBJX and PYGSX in my portfolio?

MGBJX and PYGSX have a correlation of 0.58, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MGBJX or PYGSX?

MGBJX has higher volatility (1.11%) compared to PYGSX (0.59%). In terms of maximum drawdown, MGBJX dropped -17.96% vs PYGSX's -7.29%.

Which has better risk-adjusted returns?

PYGSX currently has the higher Sharpe Ratio (2.42 vs 1.35), 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.