PIODX vs. GLOSX

Last updated Apr 1, 2026

Compare and contrast key facts about Pioneer Fund (PIODX) and Pioneer Global Sustainable Equity Fund Class A (GLOSX).

PIODX is managed by Amundi. It was launched on Feb 10, 1928. GLOSX is managed by Amundi. It was launched on Dec 15, 2005.

Performance

PIODX vs. GLOSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Pioneer Fund (PIODX) and Pioneer Global Sustainable Equity Fund Class A (GLOSX). The values are adjusted to include any dividend payments, if applicable.

PIODX vs. GLOSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PIODX Pioneer Fund	-4.16%	23.30%	22.62%	28.45%	-19.43%	27.40%	24.01%	31.04%	-1.48%	21.79%
GLOSX Pioneer Global Sustainable Equity Fund Class A	-2.65%	41.25%	11.45%	16.70%	-9.75%	23.28%	17.79%	23.30%	-16.32%	21.90%

Returns By Period

In the year-to-date period, PIODX achieves a -4.16% return, which is significantly lower than GLOSX's -2.65% return. Over the past 10 years, PIODX has outperformed GLOSX with an annualized return of 14.89%, while GLOSX has yielded a comparatively lower 12.09% annualized return.

PIODX

• 1D: -0.73%
• 1M: -8.92%
• YTD: -4.16%
• 6M: 0.23%
• 1Y: 27.06%
• 3Y*: 21.05%
• 5Y*: 12.41%
• 10Y*: 14.89%

GLOSX

• 1D: -0.36%
• 1M: -9.68%
• YTD: -2.65%
• 6M: 3.03%
• 1Y: 30.29%
• 3Y*: 19.39%
• 5Y*: 12.65%
• 10Y*: 12.09%

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

PIODX vs. GLOSX - Expense Ratio Comparison

PIODX has a 1.06% expense ratio, which is lower than GLOSX's 1.10% expense ratio.

GLOSX

Pioneer Global Sustainable Equity Fund Class A

PIODX

Pioneer Fund

Return for Risk

PIODX vs. GLOSX — Risk / Return Rank

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

PIODX

PIODX Risk / Return Rank: 77
PIODX Sharpe Ratio Rank: 73
PIODX Sortino Ratio Rank: 76
PIODX Omega Ratio Rank: 73
PIODX Calmar Ratio Rank: 81
PIODX Martin Ratio Rank: 85

GLOSX

GLOSX Risk / Return Rank: 88
GLOSX Sharpe Ratio Rank: 89
GLOSX Sortino Ratio Rank: 88
GLOSX Omega Ratio Rank: 87
GLOSX Calmar Ratio Rank: 87
GLOSX Martin Ratio Rank: 89

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.

PIODX vs. GLOSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Pioneer Fund (PIODX) and Pioneer Global Sustainable Equity Fund Class A (GLOSX). 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.

	PIODX	GLOSX	Difference
Sharpe ratio Return per unit of total volatility	1.28	1.82	-0.54
Sortino ratio Return per unit of downside risk	1.87	2.40	-0.52
Omega ratio Gain probability vs. loss probability	1.27	1.37	-0.10
Calmar ratio Return relative to maximum drawdown	1.92	2.24	-0.31
Martin ratio Return relative to average drawdown	8.74	9.93	-1.19
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PIODX vs. GLOSX - Sharpe Ratio Comparison

The current PIODX Sharpe Ratio is 1.28, which is comparable to the GLOSX Sharpe Ratio of 1.82. The chart below compares the historical Sharpe Ratios of PIODX and GLOSX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	PIODX	GLOSX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.28	1.82	-0.54
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.65	0.82	-0.17
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.80	0.72	+0.07
Sharpe Ratio (All Time) Calculated using the full available price history	0.52	0.44	+0.08

Correlation

The correlation between PIODX and GLOSX is 0.90, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

PIODX vs. GLOSX - Dividend Comparison

PIODX's dividend yield for the trailing twelve months is around 10.46%, less than GLOSX's 11.85% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PIODX Pioneer Fund	10.46%	10.04%	14.17%	2.86%	4.13%	16.18%	5.82%	9.37%	15.37%	21.35%	20.51%	14.53%
GLOSX Pioneer Global Sustainable Equity Fund Class A	11.85%	11.53%	7.73%	1.55%	6.04%	21.00%	0.87%	0.93%	10.44%	1.27%	1.25%	0.60%

Drawdowns

PIODX vs. GLOSX - Drawdown Comparison

The maximum PIODX drawdown since its inception was -53.40%, roughly equal to the maximum GLOSX drawdown of -54.40%. Use the drawdown chart below to compare losses from any high point for PIODX and GLOSX.

Drawdown Indicators

	PIODX	GLOSX	Difference
Max Drawdown Largest peak-to-trough decline	-53.40%	-54.40%	+1.00%
Max Drawdown (1Y) Largest decline over 1 year	-12.75%	-12.42%	-0.33%
Max Drawdown (5Y) Largest decline over 5 years	-26.55%	-23.72%	-2.83%
Max Drawdown (10Y) Largest decline over 10 years	-30.14%	-33.59%	+3.45%
Current Drawdown Current decline from peak	-9.99%	-10.04%	+0.05%
Average Drawdown Average peak-to-trough decline	-8.62%	-9.86%	+1.24%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.80%	2.80%	0.00%

Volatility

PIODX vs. GLOSX - Volatility Comparison

Pioneer Fund (PIODX) has a higher volatility of 5.29% compared to Pioneer Global Sustainable Equity Fund Class A (GLOSX) at 4.78%. This indicates that PIODX's price experiences larger fluctuations and is considered to be riskier than GLOSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PIODX	GLOSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.29%	4.78%	+0.51%
Volatility (6M) Calculated over the trailing 6-month period	11.51%	10.17%	+1.34%
Volatility (1Y) Calculated over the trailing 1-year period	21.40%	16.66%	+4.74%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.06%	15.48%	+3.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.78%	16.78%	+2.00%