MDLOX vs. WFSPX
MDLOX (BlackRock Global Allocation Fund) and WFSPX (iShares S&P 500 Index Fund Class K) are both mutual funds - MDLOX is a Global Allocation fund actively managed by BlackRock, while WFSPX is a S&P 500 fund tracking the S&P 500 Index. MDLOX is actively managed, while WFSPX is passively managed. Over the past 10 years, MDLOX returned 8.60%/yr vs 15.68%/yr for WFSPX. Their correlation of 0.81 suggests significant overlap in exposure. MDLOX charges 1.11%/yr vs 0.03%/yr for WFSPX.
Performance
MDLOX vs. WFSPX - Performance Comparison
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Returns By Period
In the year-to-date period, MDLOX achieves a 8.22% return, which is significantly lower than WFSPX's 9.77% return. Over the past 10 years, MDLOX has underperformed WFSPX with an annualized return of 8.60%, while WFSPX has yielded a comparatively higher 15.68% annualized return.
MDLOX
- 1D
- -0.41%
- 1M
- 1.91%
- YTD
- 8.22%
- 6M
- 7.74%
- 1Y
- 19.34%
- 3Y*
- 14.36%
- 5Y*
- 5.91%
- 10Y*
- 8.60%
WFSPX
- 1D
- -0.36%
- 1M
- 0.10%
- YTD
- 9.77%
- 6M
- 8.77%
- 1Y
- 25.45%
- 3Y*
- 21.35%
- 5Y*
- 13.57%
- 10Y*
- 15.68%
MDLOX vs. WFSPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MDLOX BlackRock Global Allocation Fund | 8.22% | 19.38% | 9.00% | 12.35% | -16.08% | 6.40% | 24.62% | 17.23% | -7.66% | 13.30% |
WFSPX iShares S&P 500 Index Fund Class K | 9.77% | 17.83% | 24.94% | 26.25% | -18.14% | 28.63% | 18.43% | 31.45% | -4.83% | 21.27% |
Correlation
The correlation between MDLOX and WFSPX is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.91 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.89 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.90 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.89 |
Correlation (All Time) Calculated using the full available price history since Oct 21, 1994 | 0.81 |
The correlation between MDLOX and WFSPX shifts across timeframes, from 0.81 (all time) to 0.91 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
MDLOX vs. WFSPX — Risk / Return Rank
MDLOX
WFSPX
MDLOX vs. WFSPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for BlackRock Global Allocation Fund (MDLOX) 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.
| MDLOX | WFSPX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.17 | ||
| Sortino ratioReturn per unit of downside risk | -0.09 | ||
| Omega ratioGain probability vs. loss probability | 1.36 | 1.39 | -0.03 |
| Calmar ratioReturn relative to maximum drawdown | 2.43 | 3.01 | -0.58 |
| Martin ratioReturn relative to average drawdown | 10.28 | 13.58 | -3.30 |
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Drawdowns
MDLOX vs. WFSPX - Drawdown Comparison
The maximum MDLOX drawdown since its inception was -32.96%, smaller than the maximum WFSPX drawdown of -58.21%. Use the drawdown chart below to compare losses from any high point for MDLOX and WFSPX.
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Drawdown Indicators
| MDLOX | WFSPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -32.96% | -58.21% | +25.25% |
Max Drawdown (1Y)Largest decline over 1 year | -8.30% | -8.90% | +0.60% |
Max Drawdown (3Y)Largest decline over 3 years | -10.08% | -18.74% | +8.66% |
Max Drawdown (5Y)Largest decline over 5 years | -22.89% | -24.51% | +1.62% |
Max Drawdown (10Y)Largest decline over 10 years | -22.89% | -33.74% | +10.85% |
Current DrawdownCurrent decline from peak | -0.55% | -1.72% | +1.17% |
Average DrawdownAverage peak-to-trough decline | -4.47% | -12.76% | +8.29% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.96% | 1.97% | -0.01% |
Volatility
MDLOX vs. WFSPX - Volatility Comparison
The current volatility for BlackRock Global Allocation Fund (MDLOX) is 4.05%, while iShares S&P 500 Index Fund Class K (WFSPX) has a volatility of 4.67%. This indicates that MDLOX experiences smaller price fluctuations and is considered to be less risky than WFSPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MDLOX | WFSPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.05% | 4.67% | -0.62% |
Volatility (6M)Calculated over the trailing 6-month period | 8.61% | 9.83% | -1.22% |
Volatility (1Y)Calculated over the trailing 1-year period | 10.22% | 12.49% | -2.27% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 10.96% | 16.97% | -6.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 10.76% | 18.07% | -7.31% |
MDLOX vs. WFSPX - Expense Ratio Comparison
MDLOX has a 1.11% expense ratio, which is higher than WFSPX's 0.03% expense ratio.
Dividends
MDLOX vs. WFSPX - Dividend Comparison
MDLOX's dividend yield for the trailing twelve months is around 8.38%, more than WFSPX's 1.59% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MDLOX BlackRock Global Allocation Fund | 8.38% | 9.07% | 7.50% | 1.15% | 5.98% | 10.11% | 10.01% | 5.44% | 5.21% | 4.56% | 1.81% | 9.49% |
WFSPX iShares S&P 500 Index Fund Class K | 1.59% | 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
With a correlation of 0.91, MDLOX and WFSPX 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.
WFSPX has higher volatility (4.67%) compared to MDLOX (4.05%). In terms of maximum drawdown, MDLOX dropped -32.96% vs WFSPX's -58.21%.
WFSPX currently has the higher Sharpe Ratio (2.15 vs 1.97), 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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