GRMRX vs. BSPPX
GRMRX (Nationwide S&P 500 Index Fund Class R) and BSPPX (iShares S&P 500 Index Fund Investor P Shares) are both S&P 500 funds tracking the S&P 500 Index, from Nationwide and iShares respectively. Both are passively managed. Over the past 5 years, GRMRX returned 13.02%/yr vs 13.70%/yr for BSPPX. With a 0.99 correlation, they move nearly in lockstep. GRMRX charges 0.93%/yr vs 0.35%/yr for BSPPX.
Performance
GRMRX vs. BSPPX - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with GRMRX having a 9.75% return and BSPPX slightly higher at 10.00%.
GRMRX
- 1D
- 1.10%
- 1M
- 0.42%
- YTD
- 9.75%
- 6M
- 9.25%
- 1Y
- 26.14%
- 3Y*
- 19.78%
- 5Y*
- 13.02%
- 10Y*
- 14.67%
BSPPX
- 1D
- 1.08%
- 1M
- 0.44%
- YTD
- 10.00%
- 6M
- 9.49%
- 1Y
- 26.72%
- 3Y*
- 20.55%
- 5Y*
- 13.70%
- 10Y*
- —
GRMRX vs. BSPPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
GRMRX Nationwide S&P 500 Index Fund Class R | 9.75% | 16.90% | 23.49% | 25.00% | -18.86% | 27.62% | 17.38% | 30.41% | -12.89% |
BSPPX iShares S&P 500 Index Fund Investor P Shares | 10.00% | 17.46% | 24.54% | 25.85% | -18.40% | 28.23% | 18.05% | 31.02% | -13.57% |
Correlation
The correlation between GRMRX and BSPPX is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 1.00 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.99 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.99 |
Correlation (All Time) Calculated using the full available price history since Sep 28, 2018 | 0.99 |
The correlation between GRMRX and BSPPX has been stable across timeframes, ranging from 0.99 to 1.00 - a consistent structural relationship.
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Return for Risk
GRMRX vs. BSPPX — Risk / Return Rank
GRMRX
BSPPX
GRMRX vs. BSPPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Nationwide S&P 500 Index Fund Class R (GRMRX) and iShares S&P 500 Index Fund Investor P Shares (BSPPX). 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.
| GRMRX | BSPPX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.05 | ||
| Sortino ratioReturn per unit of downside risk | -0.06 | ||
| Omega ratioGain probability vs. loss probability | 1.38 | 1.39 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 2.88 | 2.97 | -0.09 |
| Martin ratioReturn relative to average drawdown | 12.93 | 13.39 | -0.46 |
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Drawdowns
GRMRX vs. BSPPX - Drawdown Comparison
The maximum GRMRX drawdown since its inception was -52.25%, which is greater than BSPPX's maximum drawdown of -33.76%. Use the drawdown chart below to compare losses from any high point for GRMRX and BSPPX.
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Drawdown Indicators
| GRMRX | BSPPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -52.25% | -33.76% | -18.49% |
Max Drawdown (1Y)Largest decline over 1 year | -9.01% | -8.95% | -0.06% |
Max Drawdown (3Y)Largest decline over 3 years | -18.84% | -18.77% | -0.07% |
Max Drawdown (5Y)Largest decline over 5 years | -25.04% | -24.70% | -0.34% |
Max Drawdown (10Y)Largest decline over 10 years | -33.87% | — | — |
Current DrawdownCurrent decline from peak | -1.40% | -1.37% | -0.03% |
Average DrawdownAverage peak-to-trough decline | -6.99% | -5.20% | -1.79% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.01% | 1.98% | +0.03% |
Volatility
GRMRX vs. BSPPX - Volatility Comparison
Nationwide S&P 500 Index Fund Class R (GRMRX) and iShares S&P 500 Index Fund Investor P Shares (BSPPX) have volatilities of 4.77% and 4.76%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| GRMRX | BSPPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.77% | 4.76% | +0.01% |
Volatility (6M)Calculated over the trailing 6-month period | 9.90% | 9.90% | 0.00% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.47% | 12.46% | +0.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.04% | 16.98% | +0.06% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.12% | 19.73% | -1.61% |
GRMRX vs. BSPPX - Expense Ratio Comparison
GRMRX has a 0.93% expense ratio, which is higher than BSPPX's 0.35% expense ratio.
Dividends
GRMRX vs. BSPPX - Dividend Comparison
GRMRX's dividend yield for the trailing twelve months is around 4.31%, more than BSPPX's 1.31% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BSPPX iShares S&P 500 Index Fund Investor P Shares | 1.31% | 1.43% | 1.12% | 1.22% | 1.67% | 1.53% | 1.38% | 1.70% | 1.35% | 0.00% | 0.00% | 0.00% |
GRMRX Nationwide S&P 500 Index Fund Class R | 4.31% | 4.74% | 2.21% | 0.47% | 1.20% | 4.63% | 0.86% | 5.98% | 18.24% | 6.42% | 7.16% | 11.57% |
Frequently Asked Questions
With a correlation of 1.00, GRMRX and BSPPX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
GRMRX has higher volatility (4.77%) compared to BSPPX (4.76%). In terms of maximum drawdown, GRMRX dropped -52.25% vs BSPPX's -33.76%.
BSPPX currently has the higher Sharpe Ratio (2.13 vs 2.08), 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.
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