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Performance
Performance Chart
The chart shows the growth of an initial investment of $10,000 in Pioneer Fund, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.
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Returns By Period
Pioneer Fund (PIODX) has returned -4.16% so far this year and 27.06% over the past 12 months. Looking at the last ten years, PIODX has achieved an annualized return of 14.89%, outperforming the S&P 500 Index benchmark, which averaged 12.16% per year.
Pioneer Fund
- 1D
- -0.73%
- 1M
- -8.92%
- YTD
- -4.16%
- 6M
- 0.23%
- 1Y
- 27.06%
- 3Y*
- 21.05%
- 5Y*
- 12.41%
- 10Y*
- 14.89%
Benchmark (S&P 500 Index)
- 1D
- 2.91%
- 1M
- -5.09%
- YTD
- -4.63%
- 6M
- -2.39%
- 1Y
- 16.33%
- 3Y*
- 16.69%
- 5Y*
- 10.18%
- 10Y*
- 12.16%
Monthly Returns
Based on dividend-adjusted daily data since May 3, 1973, PIODX's average daily return is +0.04%, while the average monthly return is +0.79%. At this rate, your investment would double in approximately 7.3 years.
Historically, 63% of months were positive and 37% were negative. The best month was Aug 1982 with a return of +13.7%, while the worst month was Oct 1987 at -24.4%. The longest winning streak lasted 11 consecutive months, and the longest losing streak was 7 months.
On a daily basis, PIODX closed higher 53% of trading days. The best single day was Oct 13, 2008 with a return of +11.1%, while the worst single day was Dec 15, 1986 at -15.6%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3.57% | 1.60% | -8.92% | -4.16% | |||||||||
| 2025 | 2.13% | -2.44% | -6.66% | 0.55% | 9.17% | 7.68% | 3.64% | 0.25% | 3.23% | 4.24% | 0.22% | 0.11% | 23.30% |
| 2024 | 1.95% | 5.00% | 4.58% | -3.19% | 6.00% | 3.65% | 2.03% | 0.95% | 0.70% | -1.09% | 4.58% | -4.03% | 22.62% |
| 2023 | 7.96% | -4.68% | 1.96% | 0.49% | 1.00% | 6.48% | 5.52% | -1.11% | -4.89% | -3.01% | 9.92% | 7.07% | 28.45% |
| 2022 | -3.70% | -1.46% | 1.98% | -9.90% | 1.49% | -9.57% | 9.40% | -5.90% | -9.89% | 7.68% | 7.22% | -5.99% | -19.43% |
| 2021 | -1.68% | 5.65% | 2.45% | 5.96% | 1.93% | 2.22% | 1.36% | 2.02% | -4.75% | 7.34% | -1.11% | 3.72% | 27.40% |
Benchmark Metrics
Pioneer Fund has an annualized alpha of 1.69%, beta of 0.86, and R² of 0.82 versus S&P 500 Index. Calculated based on daily prices since May 04, 1973.
- With beta of 0.86 and R² of 0.82, this fund moves broadly in line with S&P 500 Index — much of its variation is explained by market exposure rather than independent behavior.
- Alpha
- 1.69%
- Beta
- 0.86
- R²
- 0.82
- Upside Capture
- 98.86%
- Downside Capture
- 96.32%
Expense Ratio
PIODX has a high expense ratio of 1.06%, indicating above-average management fees.
Return for Risk
Risk / Return Rank
PIODX ranks 76 for risk / return — better than 76% of mutual funds on our site. You're getting solid returns for the risk taken. A good sign, especially for investors who want growth without excessive volatility.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for Pioneer Fund (PIODX) and compare them to a chosen benchmark (S&P 500 Index).
| PIODX | Benchmark | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.28 | 0.90 | +0.39 |
Sortino ratioReturn per unit of downside risk | 1.87 | 1.39 | +0.49 |
Omega ratioGain probability vs. loss probability | 1.27 | 1.21 | +0.06 |
Calmar ratioReturn relative to maximum drawdown | 1.92 | 1.40 | +0.52 |
Martin ratioReturn relative to average drawdown | 8.74 | 6.61 | +2.13 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Explore PIODX risk-adjusted metrics in detail
Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.
Dividends
Dividend History
Pioneer Fund provided a 10.46% dividend yield over the last twelve months, with an annual payout of $4.41 per share.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $4.41 | $4.41 | $5.57 | $1.04 | $1.21 | $6.12 | $2.01 | $2.77 | $3.81 | $6.15 | $5.93 | $4.64 |
Dividend yield | 10.46% | 10.04% | 14.17% | 2.86% | 4.13% | 16.18% | 5.82% | 9.37% | 15.37% | 21.35% | 20.51% | 14.53% |
Monthly Dividends
The table displays the monthly dividend distributions for Pioneer Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.00 | $0.00 | $0.03 | $0.03 | |||||||||
| 2025 | $0.00 | $0.00 | $0.04 | $0.00 | $0.00 | $0.05 | $0.00 | $0.00 | $0.01 | $0.00 | $4.31 | $0.00 | $4.41 |
| 2024 | $0.00 | $0.00 | $0.05 | $0.00 | $0.00 | $0.05 | $0.00 | $0.00 | $0.05 | $0.00 | $5.36 | $0.06 | $5.57 |
| 2023 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.04 | $0.00 | $0.00 | $0.04 | $0.00 | $0.83 | $0.14 | $1.04 |
| 2022 | $0.00 | $0.00 | $0.01 | $0.00 | $0.00 | $0.03 | $0.00 | $0.00 | $0.05 | $0.00 | $1.04 | $0.08 | $1.21 |
| 2021 | $0.00 | $0.00 | $0.01 | $0.00 | $0.00 | $0.01 | $0.00 | $0.00 | $0.01 | $0.00 | $6.07 | $0.02 | $6.12 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the Pioneer Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the Pioneer Fund was 53.40%, occurring on Mar 9, 2009. Recovery took 994 trading sessions.
The current Pioneer Fund drawdown is 9.99%.
Depth | Start | To Bottom | Bottom | To Recover | End | Total |
|---|---|---|---|---|---|---|
| -53.4% | Oct 10, 2007 | 355 | Mar 9, 2009 | 994 | Feb 19, 2013 | 1349 |
| -41.99% | Jul 17, 2000 | 560 | Oct 9, 2002 | 817 | Jan 6, 2006 | 1377 |
| -37.79% | Dec 1, 1980 | 429 | Aug 11, 1982 | 200 | May 25, 1983 | 629 |
| -37.2% | Oct 15, 1973 | 246 | Oct 3, 1974 | 338 | Feb 4, 1976 | 584 |
| -35.84% | Aug 24, 1987 | 77 | Dec 10, 1987 | 418 | Aug 7, 1989 | 495 |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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