PGOAX vs. WFSPX
PGOAX (PGIM Jennison Small Company Fund) and WFSPX (iShares S&P 500 Index Fund Class K) are both mutual funds - PGOAX is a Small Cap Growth Equities fund managed by PGIM, while WFSPX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, PGOAX returned 13.42%/yr vs 15.50%/yr for WFSPX. Their correlation of 0.81 suggests significant overlap in exposure. PGOAX charges 1.13%/yr vs 0.03%/yr for WFSPX.
Performance
PGOAX vs. WFSPX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, PGOAX achieves a 16.14% return, which is significantly higher than WFSPX's 8.09% return. Over the past 10 years, PGOAX has underperformed WFSPX with an annualized return of 13.42%, while WFSPX has yielded a comparatively higher 15.50% annualized return.
PGOAX
- 1D
- 0.59%
- 1M
- 3.53%
- YTD
- 16.14%
- 6M
- 13.83%
- 1Y
- 30.59%
- 3Y*
- 16.37%
- 5Y*
- 6.99%
- 10Y*
- 13.42%
WFSPX
- 1D
- -0.10%
- 1M
- -2.04%
- YTD
- 8.09%
- 6M
- 6.76%
- 1Y
- 22.17%
- 3Y*
- 20.73%
- 5Y*
- 13.01%
- 10Y*
- 15.50%
PGOAX vs. WFSPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PGOAX PGIM Jennison Small Company Fund | 16.14% | 6.96% | 16.26% | 11.48% | -18.85% | 29.05% | 27.07% | 41.48% | -13.69% | 19.58% |
WFSPX iShares S&P 500 Index Fund Class K | 8.09% | 17.83% | 24.94% | 26.25% | -18.14% | 28.63% | 18.43% | 31.45% | -4.83% | 21.27% |
Correlation
The correlation between PGOAX and WFSPX is 0.75, 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 | 0.75 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.77 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.82 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.82 |
Correlation (All Time) Calculated using the full available price history since Jul 2, 1993 | 0.81 |
The correlation between PGOAX and WFSPX has been stable across timeframes, ranging from 0.75 to 0.82 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
PGOAX vs. WFSPX — Risk / Return Rank
PGOAX
WFSPX
PGOAX vs. WFSPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for PGIM Jennison Small Company Fund (PGOAX) and iShares S&P 500 Index Fund Class K (WFSPX). 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.
| PGOAX | WFSPX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.07 | ||
| Sortino ratioReturn per unit of downside risk | +0.10 | ||
| Omega ratioGain probability vs. loss probability | 1.30 | 1.32 | -0.02 |
| Calmar ratioReturn relative to maximum drawdown | 2.95 | 2.50 | +0.45 |
| Martin ratioReturn relative to average drawdown | 11.64 | 11.18 | +0.46 |
Loading charts...
Drawdowns
PGOAX vs. WFSPX - Drawdown Comparison
The maximum PGOAX drawdown since its inception was -56.57%, roughly equal to the maximum WFSPX drawdown of -58.21%. Use the drawdown chart below to compare losses from any high point for PGOAX and WFSPX.
Loading charts...
Drawdown Indicators
| PGOAX | WFSPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -56.57% | -58.21% | +1.64% |
Max Drawdown (1Y)Largest decline over 1 year | -9.88% | -8.90% | -0.98% |
Max Drawdown (3Y)Largest decline over 3 years | -23.17% | -18.74% | -4.43% |
Max Drawdown (5Y)Largest decline over 5 years | -28.19% | -24.51% | -3.68% |
Max Drawdown (10Y)Largest decline over 10 years | -47.39% | -33.74% | -13.65% |
Current DrawdownCurrent decline from peak | -0.70% | -3.22% | +2.52% |
Average DrawdownAverage peak-to-trough decline | -8.98% | -12.75% | +3.77% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.50% | 1.99% | +0.51% |
Volatility
PGOAX vs. WFSPX - Volatility Comparison
PGIM Jennison Small Company Fund (PGOAX) has a higher volatility of 5.98% compared to iShares S&P 500 Index Fund Class K (WFSPX) at 4.88%. This indicates that PGOAX's price experiences larger fluctuations and is considered to be riskier than WFSPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| PGOAX | WFSPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.98% | 4.88% | +1.10% |
Volatility (6M)Calculated over the trailing 6-month period | 13.30% | 9.89% | +3.41% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.04% | 12.53% | +4.51% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.37% | 16.98% | +3.39% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.19% | 18.04% | +4.15% |
PGOAX vs. WFSPX - Expense Ratio Comparison
PGOAX has a 1.13% expense ratio, which is higher than WFSPX's 0.03% expense ratio.
Dividends
PGOAX vs. WFSPX - Dividend Comparison
PGOAX's dividend yield for the trailing twelve months is around 6.99%, more than WFSPX's 1.62% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PGOAX PGIM Jennison Small Company Fund | 6.99% | 8.11% | 5.29% | 0.37% | 4.11% | 37.46% | 14.95% | 18.11% | 20.80% | 8.28% | 5.42% | 15.00% |
WFSPX iShares S&P 500 Index Fund Class K | 1.62% | 1.72% | 1.41% | 1.50% | 2.02% | 1.82% | 1.66% | 1.99% | 2.00% | 1.62% | 2.37% | 2.49% |
Frequently Asked Questions
PGOAX and WFSPX have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PGOAX has higher volatility (5.98%) compared to WFSPX (4.88%). In terms of maximum drawdown, PGOAX dropped -56.57% vs WFSPX's -58.21%.
WFSPX currently has the higher Sharpe Ratio (1.78 vs 1.71), 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.
Find the right allocation for PGOAX and WFSPX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer