BSPIX vs. BKIPX

Last updated Apr 2, 2026

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

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. 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. Both BSPIX and BKIPX 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

BSPIX vs. BKIPX - Performance Comparison

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

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	-4.63%	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	0.73%	6.08%	4.77%	3.37%	-4.18%	5.21%	4.86%	4.90%	0.61%	0.90%

Returns By Period

In the year-to-date period, BSPIX achieves a -4.63% return, which is significantly lower than BKIPX's 0.73% return.

BSPIX

• 1D: 2.64%
• 1M: -5.29%
• YTD: -4.63%
• 6M: -2.48%
• 1Y: 16.90%
• 3Y*: 18.07%
• 5Y*: 11.61%
• 10Y*: 13.85%

BKIPX

• 1D: 0.00%
• 1M: -0.10%
• YTD: 0.73%
• 6M: 0.95%
• 1Y: 3.68%
• 3Y*: 4.22%
• 5Y*: 2.90%
• 10Y*: —

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

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%.

BSPIX

iShares S&P 500 Index Fund Institutional Class

BKIPX

iShares Short-Term TIPS Bond Index Fund Class K

Return for Risk

BSPIX vs. BKIPX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

BSPIX

BSPIX Risk / Return Rank: 51
BSPIX Sharpe Ratio Rank: 42
BSPIX Sortino Ratio Rank: 46
BSPIX Omega Ratio Rank: 49
BSPIX Calmar Ratio Rank: 54
BSPIX Martin Ratio Rank: 67

BKIPX

BKIPX Risk / Return Rank: 88
BKIPX Sharpe Ratio Rank: 79
BKIPX Sortino Ratio Rank: 88
BKIPX Omega Ratio Rank: 83
BKIPX Calmar Ratio Rank: 97
BKIPX Martin Ratio Rank: 92

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.

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 ratio Return per unit of total volatility	0.96	1.57	-0.61
Sortino ratio Return per unit of downside risk	1.46	2.55	-1.09
Omega ratio Gain probability vs. loss probability	1.22	1.36	-0.13
Calmar ratio Return relative to maximum drawdown	1.49	4.09	-2.61
Martin ratio Return relative to average drawdown	7.12	11.81	-4.69
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BSPIX vs. BKIPX - Sharpe Ratio Comparison

The current BSPIX Sharpe Ratio is 0.96, which is lower than the BKIPX Sharpe Ratio of 1.57. The chart below compares the historical Sharpe Ratios of BSPIX and BKIPX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	BSPIX	BKIPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.96	1.57	-0.61
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.69	0.95	-0.26
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.77	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.73	1.11	-0.38

Correlation

The correlation between BSPIX and BKIPX 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

BSPIX vs. BKIPX - Dividend Comparison

BSPIX's dividend yield for the trailing twelve months is around 1.49%, less than BKIPX's 3.60% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BSPIX iShares S&P 500 Index Fund Institutional Class	1.49%	1.66%	1.35%	1.44%	1.94%	1.76%	1.60%	1.92%	1.94%	1.57%	2.30%	2.42%
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%

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.

Drawdown Indicators

	BSPIX	BKIPX	Difference
Max Drawdown Largest peak-to-trough decline	-33.75%	-6.42%	-27.33%
Max Drawdown (1Y) Largest decline over 1 year	-12.11%	-1.12%	-10.99%
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 Drawdown Current decline from peak	-6.50%	-0.51%	-5.99%
Average Drawdown Average peak-to-trough decline	-3.98%	-1.08%	-2.90%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.53%	0.39%	+2.14%

Volatility

BSPIX vs. BKIPX - Volatility Comparison

iShares S&P 500 Index Fund Institutional Class (BSPIX) has a higher volatility of 5.18% compared to iShares Short-Term TIPS Bond Index Fund Class K (BKIPX) at 0.65%. 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.

Volatility by Period

	BSPIX	BKIPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.18%	0.65%	+4.53%
Volatility (6M) Calculated over the trailing 6-month period	9.45%	1.27%	+8.18%
Volatility (1Y) Calculated over the trailing 1-year period	18.21%	2.50%	+15.71%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.88%	3.08%	+13.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.00%	2.62%	+15.38%