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BKIPX vs. BSPIX
Performance
Return for Risk
Dividends
Drawdowns
Volatility

BKIPX vs. BSPIX

Last updated Apr 1, 2026

Compare and contrast key facts about iShares Short-Term TIPS Bond Index Fund Class K (BKIPX) and iShares S&P 500 Index Fund Institutional Class (BSPIX).

BKIPX is a passively managed fund by iShares that tracks the performance of the Bloomberg U.S. Treasury Inflation-Protected Securities (TIPS) 0-5 Years Index. It was launched on Feb 16, 2016. 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. Both BKIPX and BSPIX are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

BKIPX vs. BSPIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Short-Term TIPS Bond Index Fund Class K (BKIPX) and iShares S&P 500 Index Fund Institutional Class (BSPIX). The values are adjusted to include any dividend payments, if applicable.

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BKIPX vs. BSPIX - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
BKIPX
iShares Short-Term TIPS Bond Index Fund Class K		0.73%6.08%4.77%3.37%-4.18%5.21%4.86%4.90%0.61%0.90%
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%20.18%

Returns By Period

In the year-to-date period, BKIPX achieves a 0.73% return, which is significantly higher than BSPIX's -7.08% return.

BKIPX

1D
0.20%
1M
-0.20%
YTD
0.73%
6M
1.06%
1Y
3.68%
3Y*
4.22%
5Y*
2.90%
10Y*
—

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%
*Multi-year figures are annualized to reflect compound growth (CAGR)

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iShares Short-Term TIPS Bond Index Fund Class K

iShares S&P 500 Index Fund Institutional Class

Often compared with BKIPX:
BKIPX vs. IPBAXBKIPX vs. BRGKXBKIPX vs. SEIAXBKIPX vs. FSPWXBKIPX vs. RRPAXBKIPX vs. FFNYXBKIPX vs. VCTPX
Often compared with BSPIX:
BSPIX vs. VIGAXBSPIX vs. FASGXBSPIX vs. VMGMXBSPIX vs. VWNEXBSPIX vs. USPRXBSPIX vs. POGRXBSPIX vs. BXMX

BKIPX vs. BSPIX - Expense Ratio Comparison

BKIPX has a 0.06% expense ratio, which is lower than BSPIX's 0.10% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

BSPIX
iShares S&P 500 Index Fund Institutional Class
BKIPX
iShares Short-Term TIPS Bond Index Fund Class K

Return for Risk

BKIPX vs. BSPIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
BKIPX
BKIPX Risk / Return Rank: 9393
Overall Rank
BKIPX Sharpe Ratio Rank: 8989
Sharpe Ratio Rank
BKIPX Sortino Ratio Rank: 9595
Sortino Ratio Rank
BKIPX Omega Ratio Rank: 9292
Omega Ratio Rank
BKIPX Calmar Ratio Rank: 9797
Calmar Ratio Rank
BKIPX Martin Ratio Rank: 9494
Martin Ratio Rank
BSPIX
BSPIX Risk / Return Rank: 4343
Overall Rank
BSPIX Sharpe Ratio Rank: 3939
Sharpe Ratio Rank
BSPIX Sortino Ratio Rank: 4141
Sortino Ratio Rank
BSPIX Omega Ratio Rank: 4646
Omega Ratio Rank
BSPIX Calmar Ratio Rank: 4040
Calmar Ratio Rank
BSPIX Martin Ratio Rank: 5151
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

BKIPX vs. BSPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Short-Term TIPS Bond Index Fund Class K (BKIPX) and iShares S&P 500 Index Fund Institutional Class (BSPIX). 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.

BKIPXBSPIXDifference

Sharpe ratio

Return per unit of total volatility

1.84

0.83

+1.01

Sortino ratio

Return per unit of downside risk

3.16

1.29

+1.87

Omega ratio

Gain probability vs. loss probability

1.44

1.20

+0.25

Calmar ratio

Return relative to maximum drawdown

4.28

1.05

+3.23

Martin ratio

Return relative to average drawdown

12.41

5.09

+7.31

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BKIPX vs. BSPIX - Sharpe Ratio Comparison

The current BKIPX Sharpe Ratio is 1.84, which is higher than the BSPIX Sharpe Ratio of 0.83. The chart below compares the historical Sharpe Ratios of BKIPX and BSPIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

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Sharpe Ratios by Period

BKIPXBSPIXDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.84

0.83

+1.01

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.95

0.67

+0.27

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

—

0.76

—

Sharpe Ratio (All Time)

Calculated using the full available price history

1.11

0.72

+0.39

Correlation

The correlation between BKIPX and BSPIX 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

BKIPX vs. BSPIX - Dividend Comparison

BKIPX's dividend yield for the trailing twelve months is around 3.60%, more than BSPIX's 1.53% yield.

TTM20252024202320222021202020192018201720162015
BKIPX
iShares Short-Term TIPS Bond Index Fund Class K		3.60%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		1.53%1.66%1.35%1.44%1.94%1.76%1.60%1.92%1.94%1.57%2.30%2.42%

Drawdowns

BKIPX vs. BSPIX - Drawdown Comparison

The maximum BKIPX drawdown since its inception was -6.42%, smaller than the maximum BSPIX drawdown of -33.75%. Use the drawdown chart below to compare losses from any high point for BKIPX and BSPIX.

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Drawdown Indicators

BKIPXBSPIXDifference

Max Drawdown

Largest peak-to-trough decline

-6.42%

-33.75%

+27.33%

Max Drawdown (1Y)

Largest decline over 1 year

-1.12%

-12.11%

+10.99%

Max Drawdown (5Y)

Largest decline over 5 years

-6.42%

-24.55%

+18.13%

Max Drawdown (10Y)

Largest decline over 10 years

—

-33.75%

—

Current Drawdown

Current decline from peak

-0.51%

-8.91%

+8.40%

Average Drawdown

Average peak-to-trough decline

-1.08%

-3.98%

+2.90%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.39%

2.49%

-2.10%

Volatility

BKIPX vs. BSPIX - Volatility Comparison

The current volatility for iShares Short-Term TIPS Bond Index Fund Class K (BKIPX) is 0.66%, while iShares S&P 500 Index Fund Institutional Class (BSPIX) has a volatility of 4.24%. This indicates that BKIPX experiences smaller price fluctuations and is considered to be less risky than BSPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

BKIPXBSPIXDifference

Volatility (1M)

Calculated over the trailing 1-month period

0.66%

4.24%

-3.58%

Volatility (6M)

Calculated over the trailing 6-month period

1.27%

9.08%

-7.81%

Volatility (1Y)

Calculated over the trailing 1-year period

2.51%

18.06%

-15.55%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

3.08%

16.84%

-13.76%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

2.62%

17.99%

-15.37%