QLV vs. IUS

Last updated Aug 2, 2026

QLV (FlexShares US Quality Low Volatility Index Fund) and IUS (Invesco RAFI Strategic US ETF) are both exchange-traded funds - QLV is a Quality Factor fund tracking the Northern Trust Quality Low Volatility Index, while IUS is a Large Cap Blend Equities fund tracking the Invesco Strategic US Index. Both are passively managed. Over the past 5 years, QLV returned 9.98%/yr vs 14.35%/yr for IUS. Their correlation of 0.84 means they have usually moved in the same direction. QLV charges 0.22%/yr vs 0.19%/yr for IUS.

Performance

QLV vs. IUS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in FlexShares US Quality Low Volatility Index Fund (QLV) and Invesco RAFI Strategic US ETF (IUS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, QLV achieves a 9.01% return, which is significantly lower than IUS's 19.71% return.

QLV

• 1D: 0.10%
• 1M: 1.40%
• 6M: 6.81%
• YTD: 9.01%
• 1Y: 16.12%
• 3Y*: 14.76%
• 5Y*: 9.98%
• 10Y*: —
• ALL TIME*: 11.61%

IUS

• 1D: 0.43%
• 1M: 2.30%
• 6M: 15.22%
• YTD: 19.71%
• 1Y: 34.78%
• 3Y*: 19.28%
• 5Y*: 14.35%
• 10Y*: —
• ALL TIME*: 15.51%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
IUS Invesco RAFI Strategic US ETF	$4.30M	$3.35M	$3.41M
QLV FlexShares US Quality Low Volatility Index Fund	$433.57K	$400.63K	$648.84K

QLV vs. IUS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
QLV FlexShares US Quality Low Volatility Index Fund	9.01%	12.28%	18.08%	13.71%	-9.97%	26.08%	9.63%	5.97%
IUS Invesco RAFI Strategic US ETF	19.71%	16.94%	16.51%	20.79%	-8.34%	32.17%	15.09%	8.27%

Correlation

The correlation between QLV and IUS is 0.77, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.77
Correlation (3Y) Balances recent behavior with more history.	0.84
Correlation (5Y) Shows whether the relationship held over a longer period.	0.87
Correlation (All Time) Calculated using the full available price history since Jul 16, 2019	0.84

The correlation between QLV and IUS has been stable across timeframes, ranging from 0.77 to 0.87 - a consistent structural relationship.

QLV vs. IUS - Sectors Allocation Comparison

Sectors	QLV	IUS
Technology	30.2%	21.7%
Healthcare	14.1%	15.4%
Financial Services	12.3%	9.6%
Consumer Defensive	7.8%	7.6%
Communication Services	7.4%	11.2%
Energy	6.5%	8.5%
Utilities	6.4%	1.4%
Consumer Cyclical	6.4%	11.2%
Industrials	6.3%	9.0%
Real Estate	1.4%	0.6%
Basic Materials	1.3%	3.1%

Return for Risk

QLV vs. IUS — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

QLV

QLV Risk / Return Rank: 82
QLV Sharpe Ratio Rank: 85
QLV Sortino Ratio Rank: 87
QLV Omega Ratio Rank: 84
QLV Calmar Ratio Rank: 73
QLV Martin Ratio Rank: 80

IUS

IUS Risk / Return Rank: 96
IUS Sharpe Ratio Rank: 97
IUS Sortino Ratio Rank: 96
IUS Omega Ratio Rank: 95
IUS Calmar Ratio Rank: 95
IUS Martin Ratio Rank: 96

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

QLV vs. IUS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FlexShares US Quality Low Volatility Index Fund (QLV) and Invesco RAFI Strategic US ETF (IUS). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	QLV	IUS	Difference
Sharpe ratio: Return per unit of total volatility	1.99	3.11	-1.12
Sortino ratio: Return per unit of downside risk	2.93	4.22	-1.29
Omega ratio: Gain probability vs. loss probability	1.36	1.57	-0.21
Calmar ratio: Return relative to maximum drawdown	2.53	5.38	-2.85
Martin ratio: Return relative to average drawdown	10.43	22.90	-12.48

QLV vs. IUS - Sharpe Ratio Comparison

The current QLV Sharpe Ratio is 1.99, which is lower than the IUS Sharpe Ratio of 3.11. The chart below compares the historical Sharpe Ratios of QLV and IUS, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

QLV vs. IUS - Drawdown Comparison

The maximum QLV drawdown since its inception was -33.71%, roughly equal to the maximum IUS drawdown of -34.67%. Use the drawdown chart below to compare losses from any high point for QLV and IUS.

Drawdown Indicators

	QLV	IUS	Difference
Max Drawdown Largest peak-to-trough decline	-33.71%	-34.67%	+0.96%
Max Drawdown (1Y) Largest decline over 1 year	-6.19%	-6.15%	-0.04%
Max Drawdown (3Y) Largest decline over 3 years	-12.05%	-15.61%	+3.56%
Max Drawdown (5Y) Largest decline over 5 years	-17.93%	-18.72%	+0.79%
Current Drawdown Current decline from peak	-0.43%	-0.20%	-0.23%
Average Drawdown Average peak-to-trough decline	-3.93%	-3.80%	-0.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.50%	1.44%	+0.06%

Volatility

QLV vs. IUS - Volatility Comparison

FlexShares US Quality Low Volatility Index Fund (QLV) has a higher volatility of 2.64% compared to Invesco RAFI Strategic US ETF (IUS) at 2.51%. This indicates that QLV's price experiences larger fluctuations and is considered to be riskier than IUS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	QLV	IUS	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.64%	2.51%	+0.13%
Volatility (6M) Calculated over the trailing 6-month period	5.96%	7.88%	-1.92%
Volatility (1Y) Calculated over the trailing 1-year period	7.88%	10.67%	-2.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.63%	14.99%	-2.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.43%	17.92%	-1.49%

QLV vs. IUS - Expense Ratio Comparison

QLV has a 0.22% expense ratio, which is higher than IUS's 0.19% 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

QLV vs. IUS - Dividend Comparison

QLV's dividend yield for the trailing twelve months is around 1.52%, more than IUS's 1.24% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
IUS Invesco RAFI Strategic US ETF	1.24%	1.48%	1.52%	1.72%	1.78%	1.46%	1.74%	1.77%	0.73%
QLV FlexShares US Quality Low Volatility Index Fund	1.52%	1.60%	1.66%	1.60%	1.74%	0.96%	1.24%	0.58%	0.00%

Frequently Asked Questions

Can I hold both QLV and IUS in my portfolio?

QLV and IUS have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, QLV or IUS?

QLV has higher volatility (2.64%) compared to IUS (2.51%). In terms of maximum drawdown, QLV dropped -33.71% vs IUS's -34.67%.

Which ETF is better, QLV or IUS?

On 5-year performance, IUS leads with 14.35% vs 9.98% for QLV. On fees, IUS is cheaper at 0.19% per year. On volatility, IUS has been the lower-risk option at 2.51%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, QLV or IUS?

Over the 5-year period, IUS has performed better with a 14.35% return vs 9.98%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, QLV or IUS?

IUS is cheaper with a 0.19% expense ratio, compared with 0.22% for QLV.

Which ETF pays a higher dividend yield, QLV or IUS?

QLV has the higher dividend yield at 1.52%, compared with 1.24% for IUS.

What is the main difference between QLV and IUS?

QLV is categorized as Quality Factor, while IUS is Large Cap Blend Equities. QLV tracks Northern Trust Quality Low Volatility Index, while IUS tracks Invesco Strategic US Index. They also come from different issuers: Northern Trust and Invesco. Their fees differ too: 0.22% for QLV and 0.19% for IUS.

Which has better risk-adjusted returns?

IUS currently has the higher Sharpe Ratio (3.11 vs 1.99), 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.