BSPIX vs. BXMX
Compare and contrast key facts about iShares S&P 500 Index Fund Institutional Class (BSPIX) and Nuveen S&P 500 Buy-Write Income Fund (BXMX).
BSPIX is a passively managed fund by iShares that tracks the performance of the S&P 500 Index. It was launched on Apr 28, 1993. BXMX is an actively managed fund by Nuveen. It was launched on Nov 25, 2004.
Performance
BSPIX vs. BXMX - Performance Comparison
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BSPIX vs. BXMX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BSPIX iShares S&P 500 Index Fund Institutional Class | -7.08% | 17.75% | 24.85% | 26.17% | -18.20% | 28.55% | 18.35% | 31.35% | -4.87% | 21.20% |
BXMX Nuveen S&P 500 Buy-Write Income Fund | -8.03% | 13.74% | 17.26% | 9.10% | -7.18% | 20.83% | 1.11% | 22.22% | -9.06% | 19.76% |
Returns By Period
In the year-to-date period, BSPIX achieves a -7.08% return, which is significantly higher than BXMX's -8.03% return. Over the past 10 years, BSPIX has outperformed BXMX with an annualized return of 13.55%, while BXMX has yielded a comparatively lower 8.03% annualized return.
BSPIX
- 1D
- -0.39%
- 1M
- -7.69%
- YTD
- -7.08%
- 6M
- -4.66%
- 1Y
- 14.32%
- 3Y*
- 17.05%
- 5Y*
- 11.30%
- 10Y*
- 13.55%
BXMX
- 1D
- -2.07%
- 1M
- -7.53%
- YTD
- -8.03%
- 6M
- -4.57%
- 1Y
- 9.21%
- 3Y*
- 9.29%
- 5Y*
- 7.43%
- 10Y*
- 8.03%
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BSPIX vs. BXMX - Expense Ratio Comparison
BSPIX has a 0.10% expense ratio, which is lower than BXMX's 0.89% expense ratio.
Return for Risk
BSPIX vs. BXMX — Risk / Return Rank
BSPIX
BXMX
BSPIX vs. BXMX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 Index Fund Institutional Class (BSPIX) and Nuveen S&P 500 Buy-Write Income Fund (BXMX). 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.
| BSPIX | BXMX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.83 | 0.52 | +0.31 |
Sortino ratioReturn per unit of downside risk | 1.29 | 0.87 | +0.42 |
Omega ratioGain probability vs. loss probability | 1.20 | 1.13 | +0.07 |
Calmar ratioReturn relative to maximum drawdown | 1.05 | 0.73 | +0.32 |
Martin ratioReturn relative to average drawdown | 5.09 | 3.22 | +1.87 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| BSPIX | BXMX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.83 | 0.52 | +0.31 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.67 | 0.50 | +0.18 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.76 | 0.46 | +0.29 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.72 | 0.36 | +0.36 |
Correlation
The correlation between BSPIX and BXMX is 0.68, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.
Dividends
BSPIX vs. BXMX - Dividend Comparison
BSPIX's dividend yield for the trailing twelve months is around 1.53%, less than BXMX's 8.22% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BSPIX iShares S&P 500 Index Fund Institutional Class | 1.53% | 1.66% | 1.35% | 1.44% | 1.94% | 1.76% | 1.60% | 1.92% | 1.94% | 1.57% | 2.30% | 2.42% |
BXMX Nuveen S&P 500 Buy-Write Income Fund | 8.22% | 7.41% | 7.02% | 7.37% | 7.48% | 5.87% | 6.81% | 6.76% | 8.12% | 6.41% | 7.33% | 7.42% |
Drawdowns
BSPIX vs. BXMX - Drawdown Comparison
The maximum BSPIX drawdown since its inception was -33.75%, smaller than the maximum BXMX drawdown of -49.53%. Use the drawdown chart below to compare losses from any high point for BSPIX and BXMX.
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Drawdown Indicators
| BSPIX | BXMX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.75% | -49.53% | +15.78% |
Max Drawdown (1Y)Largest decline over 1 year | -12.11% | -11.42% | -0.69% |
Max Drawdown (5Y)Largest decline over 5 years | -24.55% | -17.94% | -6.61% |
Max Drawdown (10Y)Largest decline over 10 years | -33.75% | -38.77% | +5.02% |
Current DrawdownCurrent decline from peak | -8.91% | -9.75% | +0.84% |
Average DrawdownAverage peak-to-trough decline | -3.98% | -5.69% | +1.71% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.49% | 2.58% | -0.09% |
Volatility
BSPIX vs. BXMX - Volatility Comparison
iShares S&P 500 Index Fund Institutional Class (BSPIX) and Nuveen S&P 500 Buy-Write Income Fund (BXMX) have volatilities of 4.24% and 4.26%, 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
| BSPIX | BXMX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.24% | 4.26% | -0.02% |
Volatility (6M)Calculated over the trailing 6-month period | 9.08% | 8.32% | +0.76% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.06% | 16.43% | +1.63% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.84% | 14.98% | +1.86% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.99% | 17.44% | +0.55% |