USIG vs. SPIB

Last updated Apr 1, 2026

Compare and contrast key facts about iShares Broad USD Investment Grade Corporate Bond ETF (USIG) and SPDR Portfolio Intermediate Term Corporate Bond ETF (SPIB).

USIG and SPIB are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. USIG is a passively managed fund by iShares that tracks the performance of the ICE BofA US Corporate. It was launched on Jan 5, 2007. SPIB is a passively managed fund by State Street that tracks the performance of the Bloomberg US Aggregate Credit - Corporate - Investment Grade - Intermediate. It was launched on Feb 10, 2009. Both USIG and SPIB 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

USIG vs. SPIB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Broad USD Investment Grade Corporate Bond ETF (USIG) and SPDR Portfolio Intermediate Term Corporate Bond ETF (SPIB). The values are adjusted to include any dividend payments, if applicable.

USIG vs. SPIB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
USIG iShares Broad USD Investment Grade Corporate Bond ETF	-0.29%	7.86%	2.56%	8.71%	-15.30%	-1.34%	9.44%	13.99%	-2.21%	5.75%
SPIB SPDR Portfolio Intermediate Term Corporate Bond ETF	-0.08%	7.91%	4.28%	7.27%	-9.65%	-1.24%	7.69%	10.23%	-0.49%	3.76%

Returns By Period

In the year-to-date period, USIG achieves a -0.29% return, which is significantly lower than SPIB's -0.08% return. Over the past 10 years, USIG has underperformed SPIB with an annualized return of 2.72%, while SPIB has yielded a comparatively higher 2.91% annualized return.

USIG

• 1D: 0.51%
• 1M: -1.80%
• YTD: -0.29%
• 6M: 0.41%
• 1Y: 5.06%
• 3Y*: 4.93%
• 5Y*: 0.82%
• 10Y*: 2.72%

SPIB

• 1D: 0.39%
• 1M: -1.31%
• YTD: -0.08%
• 6M: 1.15%
• 1Y: 5.46%
• 3Y*: 5.51%
• 5Y*: 1.89%
• 10Y*: 2.91%

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

USIG vs. SPIB - Expense Ratio Comparison

USIG has a 0.04% expense ratio, which is lower than SPIB's 0.07% 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%.

SPIB

SPDR Portfolio Intermediate Term Corporate Bond ETF

USIG

iShares Broad USD Investment Grade Corporate Bond ETF

Return for Risk

USIG vs. SPIB — Risk / Return Rank

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

USIG

USIG Risk / Return Rank: 60
USIG Sharpe Ratio Rank: 59
USIG Sortino Ratio Rank: 54
USIG Omega Ratio Rank: 53
USIG Calmar Ratio Rank: 74
USIG Martin Ratio Rank: 62

SPIB

SPIB Risk / Return Rank: 86
SPIB Sharpe Ratio Rank: 85
SPIB Sortino Ratio Rank: 87
SPIB Omega Ratio Rank: 83
SPIB Calmar Ratio Rank: 88
SPIB Martin Ratio Rank: 87

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.

USIG vs. SPIB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Broad USD Investment Grade Corporate Bond ETF (USIG) and SPDR Portfolio Intermediate Term Corporate Bond ETF (SPIB). 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.

	USIG	SPIB	Difference
Sharpe ratio Return per unit of total volatility	1.01	1.64	-0.63
Sortino ratio Return per unit of downside risk	1.38	2.33	-0.95
Omega ratio Gain probability vs. loss probability	1.19	1.32	-0.13
Calmar ratio Return relative to maximum drawdown	1.88	2.72	-0.84
Martin ratio Return relative to average drawdown	5.84	10.05	-4.21
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

USIG vs. SPIB - Sharpe Ratio Comparison

The current USIG Sharpe Ratio is 1.01, which is lower than the SPIB Sharpe Ratio of 1.64. The chart below compares the historical Sharpe Ratios of USIG and SPIB, 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

	USIG	SPIB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.01	1.64	-0.63
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.12	0.43	-0.31
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.40	0.64	-0.24
Sharpe Ratio (All Time) Calculated using the full available price history	0.53	0.88	-0.34

Correlation

The correlation between USIG and SPIB is 0.79, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

USIG vs. SPIB - Dividend Comparison

USIG's dividend yield for the trailing twelve months is around 4.68%, more than SPIB's 4.43% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
USIG iShares Broad USD Investment Grade Corporate Bond ETF	4.68%	4.62%	4.51%	3.94%	3.14%	2.33%	2.82%	3.37%	3.44%	3.03%	2.87%	3.24%
SPIB SPDR Portfolio Intermediate Term Corporate Bond ETF	4.43%	4.42%	4.41%	3.84%	2.65%	1.58%	2.18%	3.03%	3.04%	2.79%	2.68%	2.69%

Drawdowns

USIG vs. SPIB - Drawdown Comparison

The maximum USIG drawdown since its inception was -22.21%, which is greater than SPIB's maximum drawdown of -14.94%. Use the drawdown chart below to compare losses from any high point for USIG and SPIB.

Drawdown Indicators

	USIG	SPIB	Difference
Max Drawdown Largest peak-to-trough decline	-22.21%	-14.94%	-7.27%
Max Drawdown (1Y) Largest decline over 1 year	-2.79%	-2.02%	-0.77%
Max Drawdown (5Y) Largest decline over 5 years	-21.45%	-14.80%	-6.65%
Max Drawdown (10Y) Largest decline over 10 years	-21.45%	-14.94%	-6.51%
Current Drawdown Current decline from peak	-1.80%	-1.31%	-0.49%
Average Drawdown Average peak-to-trough decline	-3.44%	-1.91%	-1.53%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.90%	0.55%	+0.35%

Volatility

USIG vs. SPIB - Volatility Comparison

iShares Broad USD Investment Grade Corporate Bond ETF (USIG) has a higher volatility of 2.10% compared to SPDR Portfolio Intermediate Term Corporate Bond ETF (SPIB) at 1.40%. This indicates that USIG's price experiences larger fluctuations and is considered to be riskier than SPIB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	USIG	SPIB	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.10%	1.40%	+0.70%
Volatility (6M) Calculated over the trailing 6-month period	2.89%	1.95%	+0.94%
Volatility (1Y) Calculated over the trailing 1-year period	5.05%	3.35%	+1.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.83%	4.45%	+2.38%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.82%	4.59%	+2.23%