BIIPX vs. WFSPX
Compare and contrast key facts about iShares Short-Term TIPS Bond Index Fund (BIIPX) and iShares S&P 500 Index Fund (WFSPX).
BIIPX is managed by BlackRock. It was launched on Feb 15, 2016. WFSPX is a passively managed fund by BlackRock that tracks the performance of the S&P 500 Index. It was launched on Jul 30, 1993.
Performance
BIIPX vs. WFSPX - Performance Comparison
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BIIPX vs. WFSPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BIIPX iShares Short-Term TIPS Bond Index Fund | 0.73% | 6.05% | 4.75% | 3.25% | -4.12% | 5.19% | 4.89% | 4.83% | 0.58% | 0.88% |
WFSPX iShares S&P 500 Index Fund | -4.63% | 17.83% | 24.94% | 26.25% | -18.14% | 28.63% | 18.43% | 31.45% | -4.83% | 20.24% |
Returns By Period
In the year-to-date period, BIIPX achieves a 0.73% return, which is significantly higher than WFSPX's -4.63% return.
BIIPX
- 1D
- 0.00%
- 1M
- -0.10%
- YTD
- 0.73%
- 6M
- 1.05%
- 1Y
- 3.76%
- 3Y*
- 4.19%
- 5Y*
- 2.88%
- 10Y*
- —
WFSPX
- 1D
- 2.62%
- 1M
- -5.31%
- YTD
- -4.63%
- 6M
- -2.47%
- 1Y
- 16.96%
- 3Y*
- 18.15%
- 5Y*
- 11.69%
- 10Y*
- 13.92%
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BIIPX vs. WFSPX - Expense Ratio Comparison
BIIPX has a 0.08% expense ratio, which is higher than WFSPX's 0.03% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
BIIPX vs. WFSPX — Risk / Return Rank
BIIPX
WFSPX
BIIPX vs. WFSPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Short-Term TIPS Bond Index Fund (BIIPX) and iShares S&P 500 Index Fund (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.
| BIIPX | WFSPX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.54 | 0.96 | +0.58 |
Sortino ratioReturn per unit of downside risk | 2.59 | 1.47 | +1.12 |
Omega ratioGain probability vs. loss probability | 1.35 | 1.22 | +0.13 |
Calmar ratioReturn relative to maximum drawdown | 4.06 | 1.49 | +2.57 |
Martin ratioReturn relative to average drawdown | 11.31 | 7.15 | +4.15 |
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
| BIIPX | WFSPX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.54 | 0.96 | +0.58 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.94 | 0.70 | +0.25 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.78 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.10 | 0.13 | +0.97 |
Correlation
The correlation between BIIPX and WFSPX is 0.06, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
BIIPX vs. WFSPX - Dividend Comparison
BIIPX's dividend yield for the trailing twelve months is around 3.57%, more than WFSPX's 1.54% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BIIPX iShares Short-Term TIPS Bond Index Fund | 3.57% | 4.64% | 4.30% | 2.65% | 4.56% | 4.39% | 1.58% | 2.27% | 2.74% | 1.89% | 0.00% | 0.00% |
WFSPX iShares S&P 500 Index Fund | 1.54% | 1.72% | 1.41% | 1.50% | 2.02% | 1.82% | 1.66% | 1.99% | 2.00% | 1.62% | 2.37% | 2.49% |
Drawdowns
BIIPX vs. WFSPX - Drawdown Comparison
The maximum BIIPX drawdown since its inception was -6.46%, smaller than the maximum WFSPX drawdown of -58.21%. Use the drawdown chart below to compare losses from any high point for BIIPX and WFSPX.
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Drawdown Indicators
| BIIPX | WFSPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -6.46% | -58.21% | +51.75% |
Max Drawdown (1Y)Largest decline over 1 year | -1.12% | -12.11% | +10.99% |
Max Drawdown (5Y)Largest decline over 5 years | -6.46% | -24.51% | +18.05% |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.74% | — |
Current DrawdownCurrent decline from peak | -0.51% | -6.51% | +6.00% |
Average DrawdownAverage peak-to-trough decline | -1.09% | -12.84% | +11.75% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.40% | 2.53% | -2.13% |
Volatility
BIIPX vs. WFSPX - Volatility Comparison
The current volatility for iShares Short-Term TIPS Bond Index Fund (BIIPX) is 0.56%, while iShares S&P 500 Index Fund (WFSPX) has a volatility of 5.17%. This indicates that BIIPX 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
| BIIPX | WFSPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.56% | 5.17% | -4.61% |
Volatility (6M)Calculated over the trailing 6-month period | 1.28% | 9.44% | -8.16% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.53% | 18.21% | -15.68% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.07% | 16.88% | -13.81% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.63% | 18.00% | -15.37% |