BSPIX vs. BKIPX
BSPIX (iShares S&P 500 Index Fund Institutional Class) and BKIPX (iShares Short-Term TIPS Bond Index Fund Class K) are both mutual funds - BSPIX is a S&P 500 fund tracking the S&P 500 Index, while BKIPX is a Inflation-Protected Bonds fund tracking the Bloomberg U.S. Treasury Inflation-Protected Securities (TIPS) 0-5 Years Index. Both are passively managed. Over the past 5 years, BSPIX returned 14.17%/yr vs 2.87%/yr for BKIPX. At a 0.06 correlation, their price movements are largely independent. BSPIX charges 0.10%/yr vs 0.06%/yr for BKIPX.
Performance
BSPIX vs. BKIPX - Performance Comparison
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Returns By Period
In the year-to-date period, BSPIX achieves a 11.65% return, which is significantly higher than BKIPX's 2.00% return.
BSPIX
- 1D
- 0.13%
- 1M
- 5.79%
- YTD
- 11.65%
- 6M
- 11.68%
- 1Y
- 28.84%
- 3Y*
- 22.63%
- 5Y*
- 14.17%
- 10Y*
- 15.46%
BKIPX
- 1D
- 0.00%
- 1M
- 0.13%
- YTD
- 2.00%
- 6M
- 1.96%
- 1Y
- 4.73%
- 3Y*
- 5.04%
- 5Y*
- 2.87%
- 10Y*
- —
BSPIX vs. BKIPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BSPIX iShares S&P 500 Index Fund Institutional Class | 11.65% | 17.75% | 24.85% | 26.17% | -18.20% | 28.55% | 18.35% | 31.35% | -4.87% | 20.18% |
BKIPX iShares Short-Term TIPS Bond Index Fund Class K | 2.00% | 6.08% | 4.77% | 3.37% | -4.18% | 5.21% | 4.86% | 4.90% | 0.61% | 0.90% |
Correlation
The correlation between BSPIX and BKIPX is -0.01, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.01 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.08 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.10 |
Correlation (All Time) Calculated using the full available price history since Jan 4, 2017 | 0.06 |
The correlation between BSPIX and BKIPX shifts across timeframes, from -0.01 (1 year) to 0.10 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
BSPIX vs. BKIPX — Risk / Return Rank
BSPIX
BKIPX
BSPIX vs. BKIPX - 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 iShares Short-Term TIPS Bond Index Fund Class K (BKIPX). 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 | BKIPX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.47 | ||
| Sortino ratioReturn per unit of downside risk | -0.69 | ||
| Omega ratioGain probability vs. loss probability | 1.46 | 1.52 | -0.06 |
| Calmar ratioReturn relative to maximum drawdown | 3.34 | 3.51 | -0.17 |
| Martin ratioReturn relative to average drawdown | 15.58 | 16.09 | -0.51 |
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 | BKIPX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.51 | 2.04 | +0.47 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.84 | 0.92 | -0.08 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.86 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.81 | 1.13 | -0.32 |
Drawdowns
BSPIX vs. BKIPX - Drawdown Comparison
The maximum BSPIX drawdown since its inception was -33.75%, which is greater than BKIPX's maximum drawdown of -6.42%. Use the drawdown chart below to compare losses from any high point for BSPIX and BKIPX.
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Drawdown Indicators
| BSPIX | BKIPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.75% | -6.42% | -27.33% |
Max Drawdown (1Y)Largest decline over 1 year | -8.91% | -1.32% | -7.59% |
Max Drawdown (3Y)Largest decline over 3 years | -18.74% | -1.32% | -17.42% |
Max Drawdown (5Y)Largest decline over 5 years | -24.55% | -6.42% | -18.13% |
Max Drawdown (10Y)Largest decline over 10 years | -33.75% | — | — |
Current DrawdownCurrent decline from peak | 0.00% | 0.00% | 0.00% |
Average DrawdownAverage peak-to-trough decline | -3.93% | -1.07% | -2.86% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.90% | 0.29% | +1.61% |
Volatility
BSPIX vs. BKIPX - Volatility Comparison
iShares S&P 500 Index Fund Institutional Class (BSPIX) has a higher volatility of 2.83% compared to iShares Short-Term TIPS Bond Index Fund Class K (BKIPX) at 1.22%. This indicates that BSPIX's price experiences larger fluctuations and is considered to be riskier than BKIPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BSPIX | BKIPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.83% | 1.22% | +1.61% |
Volatility (6M)Calculated over the trailing 6-month period | 8.97% | 1.73% | +7.24% |
Volatility (1Y)Calculated over the trailing 1-year period | 11.85% | 2.28% | +9.57% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.88% | 3.12% | +13.76% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.03% | 2.64% | +15.39% |
BSPIX vs. BKIPX - Expense Ratio Comparison
BSPIX has a 0.10% expense ratio, which is higher than BKIPX's 0.06% 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%.
Dividends
BSPIX vs. BKIPX - Dividend Comparison
BSPIX's dividend yield for the trailing twelve months is around 1.50%, less than BKIPX's 4.63% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BKIPX iShares Short-Term TIPS Bond Index Fund Class K | 4.63% | 4.68% | 4.33% | 2.77% | 4.80% | 4.41% | 1.17% | 2.54% | 2.56% | 1.90% | 0.00% | 0.00% |
BSPIX iShares S&P 500 Index Fund Institutional Class | 1.50% | 1.66% | 1.35% | 1.44% | 1.94% | 1.76% | 1.60% | 1.92% | 1.94% | 1.57% | 2.30% | 2.42% |
Frequently Asked Questions
BSPIX and BKIPX have a correlation of -0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BSPIX has higher volatility (2.83%) compared to BKIPX (1.22%). In terms of maximum drawdown, BSPIX dropped -33.75% vs BKIPX's -6.42%.
BSPIX currently has the higher Sharpe Ratio (2.51 vs 2.04), 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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