QIG vs. USIG

Last updated Jun 4, 2026

QIG (WisdomTree U.S. Corporate Bond Fund) and USIG (iShares Broad USD Investment Grade Corporate Bond ETF) are both Corporate Bonds funds - QIG tracks the WisdomTree U.S. Quality Corporate Bond Index while USIG tracks the ICE BofA US Corporate. Both are passively managed. Over the past 10 years, QIG returned 2.50%/yr vs 2.63%/yr for USIG. Their correlation of 0.86 suggests significant overlap in exposure. QIG charges 0.18%/yr vs 0.04%/yr for USIG.

Performance

QIG vs. USIG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in WisdomTree U.S. Corporate Bond Fund (QIG) and iShares Broad USD Investment Grade Corporate Bond ETF (USIG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, QIG achieves a 0.49% return, which is significantly lower than USIG's 0.56% return. Over the past 10 years, QIG has underperformed USIG with an annualized return of 2.50%, while USIG has yielded a comparatively higher 2.63% annualized return.

QIG

• 1D: -0.21%
• 1M: 0.66%
• YTD: 0.49%
• 6M: 0.42%
• 1Y: 5.92%
• 3Y*: 5.29%
• 5Y*: 0.56%
• 10Y*: 2.50%

USIG

• 1D: -0.23%
• 1M: 0.56%
• YTD: 0.56%
• 6M: 0.37%
• 1Y: 6.04%
• 3Y*: 5.46%
• 5Y*: 0.72%
• 10Y*: 2.63%

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

QIG vs. USIG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
QIG WisdomTree U.S. Corporate Bond Fund	0.49%	7.85%	2.28%	8.48%	-16.25%	-1.52%	9.75%	13.97%	-2.01%	7.00%
USIG iShares Broad USD Investment Grade Corporate Bond ETF	0.56%	7.86%	2.56%	8.71%	-15.30%	-1.34%	9.44%	13.99%	-2.21%	5.75%

Correlation

The correlation between QIG and USIG is 0.98 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.98
Correlation (3Y) Calculated over the trailing 3-year period	0.98
Correlation (5Y) Calculated over the trailing 5-year period	0.98
Correlation (10Y) Calculated over the trailing 10-year period	0.86
Correlation (All Time) Calculated using the full available price history since Apr 28, 2016	0.86

The correlation between QIG and USIG shifts across timeframes, from 0.86 (all time) to 0.98 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

QIG vs. USIG — Risk / Return Rank

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

QIG

QIG Risk / Return Rank: 42
QIG Sharpe Ratio Rank: 41
QIG Sortino Ratio Rank: 42
QIG Omega Ratio Rank: 39
QIG Calmar Ratio Rank: 46
QIG Martin Ratio Rank: 43

USIG

USIG Risk / Return Rank: 42
USIG Sharpe Ratio Rank: 41
USIG Sortino Ratio Rank: 42
USIG Omega Ratio Rank: 39
USIG Calmar Ratio Rank: 44
USIG Martin Ratio Rank: 43

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.

QIG vs. USIG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for WisdomTree U.S. Corporate Bond Fund (QIG) and iShares Broad USD Investment Grade Corporate Bond ETF (USIG). 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.

	QIG	USIG	Difference
Sharpe ratio Return per unit of total volatility	1.43	1.47	-0.04
Sortino ratio Return per unit of downside risk	2.11	2.16	-0.05
Omega ratio Gain probability vs. loss probability	1.25	1.26	0.00
Calmar ratio Return relative to maximum drawdown	2.21	2.17	+0.04
Martin ratio Return relative to average drawdown	6.91	7.07	-0.16
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

QIG vs. USIG - Sharpe Ratio Comparison

The current QIG Sharpe Ratio is 1.43, which is comparable to the USIG Sharpe Ratio of 1.47. The chart below compares the historical Sharpe Ratios of QIG and USIG, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	QIG	USIG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.43	1.47	-0.04
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.08	0.11	-0.03
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.33	0.39	-0.05
Sharpe Ratio (All Time) Calculated using the full available price history	0.33	0.54	-0.21

Drawdowns

QIG vs. USIG - Drawdown Comparison

The maximum QIG drawdown since its inception was -22.92%, roughly equal to the maximum USIG drawdown of -22.21%. Use the drawdown chart below to compare losses from any high point for QIG and USIG.

Drawdown Indicators

	QIG	USIG	Difference
Max Drawdown Largest peak-to-trough decline	-22.92%	-22.21%	-0.71%
Max Drawdown (1Y) Largest decline over 1 year	-2.69%	-2.79%	+0.10%
Max Drawdown (3Y) Largest decline over 3 years	-6.22%	-6.10%	-0.12%
Max Drawdown (5Y) Largest decline over 5 years	-22.92%	-21.45%	-1.47%
Max Drawdown (10Y) Largest decline over 10 years	-22.92%	-21.45%	-1.47%
Current Drawdown Current decline from peak	-1.30%	-0.97%	-0.33%
Average Drawdown Average peak-to-trough decline	-5.51%	-3.42%	-2.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.86%	0.86%	0.00%

Volatility

QIG vs. USIG - Volatility Comparison

WisdomTree U.S. Corporate Bond Fund (QIG) has a higher volatility of 1.35% compared to iShares Broad USD Investment Grade Corporate Bond ETF (USIG) at 1.27%. This indicates that QIG's price experiences larger fluctuations and is considered to be riskier than USIG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	QIG	USIG	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.35%	1.27%	+0.08%
Volatility (6M) Calculated over the trailing 6-month period	3.05%	3.04%	+0.01%
Volatility (1Y) Calculated over the trailing 1-year period	4.15%	4.13%	+0.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.14%	6.82%	+0.32%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.54%	6.82%	+0.72%

QIG vs. USIG - Expense Ratio Comparison

QIG has a 0.18% expense ratio, which is higher than USIG's 0.04% 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

QIG vs. USIG - Dividend Comparison

QIG's dividend yield for the trailing twelve months is around 4.88%, more than USIG's 4.74% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
QIG WisdomTree U.S. Corporate Bond Fund	4.88%	4.82%	4.67%	4.19%	4.25%	2.50%	2.61%	3.00%	3.27%	2.88%	2.35%	0.00%
USIG iShares Broad USD Investment Grade Corporate Bond ETF	4.74%	4.62%	4.51%	3.94%	3.14%	2.33%	2.82%	3.37%	3.44%	3.03%	2.87%	3.24%

Frequently Asked Questions

Can I hold both QIG and USIG in my portfolio?

With a correlation of 0.98, QIG and USIG move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, QIG or USIG?

QIG has higher volatility (1.35%) compared to USIG (1.27%). In terms of maximum drawdown, QIG dropped -22.92% vs USIG's -22.21%.

Which ETF is better, QIG or USIG?

On 10-year performance, USIG leads with 2.63% vs 2.50% for QIG. On fees, USIG is cheaper at 0.04% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, QIG or USIG?

Over the 10-year period, USIG has performed better with a 2.63% return vs 2.50%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, QIG or USIG?

USIG is cheaper with a 0.04% expense ratio, compared with 0.18% for QIG.

Which ETF pays a higher dividend yield, QIG or USIG?

QIG has the higher dividend yield at 4.88%, compared with 4.74% for USIG.

What is the main difference between QIG and USIG?

QIG tracks WisdomTree U.S. Quality Corporate Bond Index, while USIG tracks ICE BofA US Corporate. They also come from different issuers: WisdomTree and iShares. Their fees differ too: 0.18% for QIG and 0.04% for USIG.

Which has better risk-adjusted returns?

USIG currently has the higher Sharpe Ratio (1.47 vs 1.43), 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.