Fund & Portfolio Comparison

Performance Comparison
Comparison Box

Portfolio Performance Comparison
Name YTD Return 1Yr AR 3Yr AR 5Yr AR 10Yr AR 15Yr AR 20Yr AR Common Inception
PIODX (PIONEER FUND PIONEER FUND: CLASS A) 9.22% 28.37% 24.23% 9.42% 13.48% 12.17% 9.65% … …
Data as of 06/08/2026, Common starting date is 05/30/1973
More Performance Analytics Comparison
Name Start Date End Date
PIODX (PIONEER FUND PIONEER FUND: CLASS A) 05/30/1973 06/08/2026
Last 1 Week 1 Yr 3 Yr 5 Yr 10 Yr 15 Yr 20 Yr Common Inception YTD 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973
Annualized Return (%) -3.07 28.37 24.23 9.42 13.48 12.17 9.65 … … 9.22 23.30 22.61 28.71 -22.13 9.57 17.42 31.04 -1.48 21.79 9.66 -0.45 10.95 33.04 9.75 -4.59 15.71 24.26 -34.27 4.82 16.40 6.14 11.63 24.58 -20.34 -11.04 0.04 15.38 29.31 38.51 19.63 16.52 -6.34 10.30 8.79 10.84 -16.71 17.81 13.41 -3.63 -12.22 19.74 -5.36 18.98 5.96 -5.98 26.38 23.94 8.37 0.41 34.47 36.91 -22.70 3.78
Sharpe Ratio NA 1.72 1.21 0.33 0.56 NA NA … … 1.13 0.94 1.29 1.61 -0.91 0.43 0.51 2.51 -0.17 0.79 0.75 -0.03 0.43 2.95 0.73 -0.19 0.86 0.94 -0.92 0.11 1.29 0.38 0.98 1.49 -0.88 -0.72 -0.22 0.73 1.31 2.04 1.46 1.12 -1.00 1.10 0.71 0.50 -1.65 1.13 0.66 -0.32 -0.78 1.24 -0.80 0.82 -0.10 -1.09 1.20 1.60 0.24 -0.42 3.33 2.56 -1.73 0.06
Standard Deviation(%) NA 15.50 17.51 20.68 21.36 NA NA … … 17.32 21.74 14.77 15.70 25.96 22.37 33.61 11.78 16.58 26.93 12.51 15.22 25.39 11.19 13.41 23.98 18.16 25.74 38.00 15.70 10.12 10.26 10.87 16.06 24.48 19.14 19.19 16.55 19.74 16.97 10.82 11.22 9.40 7.37 8.73 13.82 13.44 10.50 12.94 24.73 21.20 11.45 15.39 15.43 18.02 15.09 14.82 10.27 13.31 8.12 9.23 12.72 16.40 12.83
Draw Down(%) NA 9.99 21.52 36.52 36.52 NA NA … … 9.99 21.52 9.49 11.58 26.55 18.55 30.14 5.75 16.54 16.16 9.24 12.44 18.13 5.57 11.61 22.48 16.45 27.65 44.00 9.56 7.65 6.99 7.43 15.57 33.44 26.17 10.83 10.15 18.41 9.97 8.32 9.69 10.17 3.90 4.67 14.36 19.30 9.45 6.83 34.77 19.05 7.27 23.11 10.30 25.02 18.44 20.36 10.91 13.92 9.63 6.20 9.96 32.25 14.91
Yield(%) 0.00 10.68 11.39 5.68 9.11 8.99 7.15 … … 0.07 11.22 15.42 3.78 0.44 0.13 0.51 11.19 13.15 21.13 18.83 12.66 17.50 11.62 24.92 1.11 0.93 1.32 2.86 8.30 7.28 1.03 0.89 0.89 0.66 1.05 7.19 5.52 4.97 8.24 8.95 2.28 2.12 2.19 2.47 3.27 2.85 3.36 3.26 3.06 2.91 3.96 3.64 4.21 4.49 4.02 4.10 4.07 3.88 3.51 4.07 5.06 3.45 2.56
Data as of 06/08/2026, Common starting date is 05/30/1973
Performance Comparison Chart
Annualized Rolling Returns Comparison (Minimum)
Ticker/Portfolio Name 3 Year 5 Year 10 Year 15 Year
PIODX (PIONEER FUND PIONEER FUND: CLASS A) -13.97%
Feb 2006 – Feb 2009 		-5.31%
Feb 2004 – Feb 2009 		-2.23%
Feb 1999 – Feb 2009 		3.51%
Aug 2000 – Aug 2015
Annualized Rolling Returns Comparison (Maximum)
Ticker/Portfolio Name 3 Year 5 Year 10 Year 15 Year
PIODX (PIONEER FUND PIONEER FUND: CLASS A) 30.25%
Jul 1996 – Jul 1999 		23.56%
Dec 1994 – Dec 1999 		15.45%
Sep 2011 – Sep 2021 		13.21%
Feb 2009 – Feb 2024
Annualized Rolling Returns Comparison Chart

3-Year Annualized Rolling Return