PFSIX vs. PONAX

Last updated Jun 4, 2026

PFSIX (PIMCO Emerging Markets Full Spectrum Bond Fund) and PONAX (PIMCO Income Fund Class A) are both mutual funds - PFSIX is a Emerging Markets Bonds fund managed by PIMCO, while PONAX is a Multisector Bonds fund managed by PIMCO. Over the past 10 years, PFSIX returned 4.18%/yr vs 4.30%/yr for PONAX. A 0.64 correlation means they provide meaningful diversification when combined. PFSIX charges 0.94%/yr vs 1.02%/yr for PONAX.

Performance

PFSIX vs. PONAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in PIMCO Emerging Markets Full Spectrum Bond Fund (PFSIX) and PIMCO Income Fund Class A (PONAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PFSIX achieves a 1.40% return, which is significantly higher than PONAX's 0.83% return. Both investments have delivered pretty close results over the past 10 years, with PFSIX having a 4.18% annualized return and PONAX not far ahead at 4.30%.

PFSIX

• 1D: 0.31%
• 1M: 1.63%
• YTD: 1.40%
• 6M: 2.74%
• 1Y: 12.58%
• 3Y*: 9.94%
• 5Y*: 3.02%
• 10Y*: 4.18%

PONAX

• 1D: 0.18%
• 1M: 0.88%
• YTD: 0.83%
• 6M: 1.21%
• 1Y: 7.96%
• 3Y*: 7.44%
• 5Y*: 3.14%
• 10Y*: 4.30%

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

PFSIX vs. PONAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PFSIX PIMCO Emerging Markets Full Spectrum Bond Fund	1.40%	18.47%	2.89%	10.66%	-12.11%	-5.11%	4.34%	15.20%	-5.26%	12.33%
PONAX PIMCO Income Fund Class A	0.83%	10.63%	5.02%	8.96%	-9.34%	2.21%	5.40%	7.65%	0.21%	8.19%

Correlation

The correlation between PFSIX and PONAX is 0.72, 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	0.72
Correlation (3Y) Calculated over the trailing 3-year period	0.72
Correlation (5Y) Calculated over the trailing 5-year period	0.73
Correlation (10Y) Calculated over the trailing 10-year period	0.66
Correlation (All Time) Calculated using the full available price history since Feb 26, 2013	0.64

The correlation between PFSIX and PONAX has been stable across timeframes, ranging from 0.64 to 0.73 - a consistent structural relationship.

Return for Risk

PFSIX vs. PONAX — Risk / Return Rank

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

PFSIX

PFSIX Risk / Return Rank: 52
PFSIX Sharpe Ratio Rank: 59
PFSIX Sortino Ratio Rank: 66
PFSIX Omega Ratio Rank: 70
PFSIX Calmar Ratio Rank: 34
PFSIX Martin Ratio Rank: 31

PONAX

PONAX Risk / Return Rank: 41
PONAX Sharpe Ratio Rank: 45
PONAX Sortino Ratio Rank: 48
PONAX Omega Ratio Rank: 48
PONAX Calmar Ratio Rank: 33
PONAX Martin Ratio Rank: 33

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.

PFSIX vs. PONAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for PIMCO Emerging Markets Full Spectrum Bond Fund (PFSIX) and PIMCO Income Fund Class A (PONAX). 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.

	PFSIX	PONAX	Difference
Sharpe ratio Return per unit of total volatility	2.25	1.96	+0.30
Sortino ratio Return per unit of downside risk	3.40	2.92	+0.48
Omega ratio Gain probability vs. loss probability	1.47	1.38	+0.09
Calmar ratio Return relative to maximum drawdown	2.19	2.17	+0.02
Martin ratio Return relative to average drawdown	7.08	7.45	-0.36
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PFSIX vs. PONAX - Sharpe Ratio Comparison

The current PFSIX Sharpe Ratio is 2.25, which is comparable to the PONAX Sharpe Ratio of 1.96. The chart below compares the historical Sharpe Ratios of PFSIX and PONAX, 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

	PFSIX	PONAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.25	1.96	+0.30
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.51	0.66	-0.15
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.66	1.03	-0.37
Sharpe Ratio (All Time) Calculated using the full available price history	0.28	1.48	-1.21

Drawdowns

PFSIX vs. PONAX - Drawdown Comparison

The maximum PFSIX drawdown since its inception was -28.20%, which is greater than PONAX's maximum drawdown of -13.64%. Use the drawdown chart below to compare losses from any high point for PFSIX and PONAX.

Drawdown Indicators

	PFSIX	PONAX	Difference
Max Drawdown Largest peak-to-trough decline	-28.20%	-13.64%	-14.56%
Max Drawdown (1Y) Largest decline over 1 year	-5.79%	-3.69%	-2.10%
Max Drawdown (3Y) Largest decline over 3 years	-6.06%	-3.90%	-2.16%
Max Drawdown (5Y) Largest decline over 5 years	-23.92%	-13.64%	-10.28%
Max Drawdown (10Y) Largest decline over 10 years	-24.61%	-13.64%	-10.97%
Current Drawdown Current decline from peak	-1.72%	-1.03%	-0.69%
Average Drawdown Average peak-to-trough decline	-9.32%	-1.80%	-7.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.78%	1.07%	+0.71%

Volatility

PFSIX vs. PONAX - Volatility Comparison

PIMCO Emerging Markets Full Spectrum Bond Fund (PFSIX) has a higher volatility of 2.22% compared to PIMCO Income Fund Class A (PONAX) at 1.67%. This indicates that PFSIX's price experiences larger fluctuations and is considered to be riskier than PONAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PFSIX	PONAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.22%	1.67%	+0.55%
Volatility (6M) Calculated over the trailing 6-month period	4.85%	3.25%	+1.60%
Volatility (1Y) Calculated over the trailing 1-year period	5.63%	4.10%	+1.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.99%	4.81%	+1.18%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.35%	4.21%	+2.14%

PFSIX vs. PONAX - Expense Ratio Comparison

PFSIX has a 0.94% expense ratio, which is lower than PONAX's 1.02% expense ratio.

Dividends

PFSIX vs. PONAX - Dividend Comparison

PFSIX's dividend yield for the trailing twelve months is around 7.27%, more than PONAX's 5.43% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PFSIX PIMCO Emerging Markets Full Spectrum Bond Fund	7.27%	6.45%	6.58%	4.65%	3.75%	4.40%	4.23%	5.22%	5.66%	5.22%	5.20%	5.44%
PONAX PIMCO Income Fund Class A	5.43%	5.61%	5.86%	5.86%	4.66%	3.62%	4.48%	5.42%	5.24%	4.97%	5.13%	7.45%

Frequently Asked Questions

Can I hold both PFSIX and PONAX in my portfolio?

PFSIX and PONAX have a correlation of 0.72, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PFSIX or PONAX?

PFSIX has higher volatility (2.22%) compared to PONAX (1.67%). In terms of maximum drawdown, PFSIX dropped -28.20% vs PONAX's -13.64%.

Which has better risk-adjusted returns?

PFSIX currently has the higher Sharpe Ratio (2.25 vs 1.96), 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.