OPER vs. VRIG

Last updated Jun 25, 2026

OPER (ClearShares Ultra-Short Maturity ETF) and VRIG (Invesco Variable Rate Investment Grade ETF) are both Ultrashort Bond funds. OPER is passively managed, while VRIG is actively managed. Over the past 5 years, OPER returned 3.69%/yr vs 4.49%/yr for VRIG. At a 0.11 correlation, their price movements are largely independent. OPER charges 0.20%/yr vs 0.30%/yr for VRIG.

Performance

OPER vs. VRIG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ClearShares Ultra-Short Maturity ETF (OPER) and Invesco Variable Rate Investment Grade ETF (VRIG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OPER achieves a 1.75% return, which is significantly lower than VRIG's 2.14% return.

OPER

• 1D: 0.01%
• 1M: 0.32%
• YTD: 1.75%
• 6M: 1.82%
• 1Y: 4.04%
• 3Y*: 4.77%
• 5Y*: 3.69%
• 10Y*: —

VRIG

• 1D: 0.08%
• 1M: 0.47%
• YTD: 2.14%
• 6M: 2.25%
• 1Y: 4.94%
• 3Y*: 5.95%
• 5Y*: 4.49%
• 10Y*: —

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

OPER vs. VRIG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
OPER ClearShares Ultra-Short Maturity ETF	1.75%	4.37%	5.34%	5.09%	1.76%	0.37%	0.65%	2.15%	0.88%
VRIG Invesco Variable Rate Investment Grade ETF	2.14%	5.05%	6.81%	7.37%	0.99%	1.06%	1.76%	4.57%	-0.33%

Correlation

The correlation between OPER and VRIG is -0.02, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.02
Correlation (3Y) Calculated over the trailing 3-year period	0.10
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (All Time) Calculated using the full available price history since Jul 11, 2018	0.11

The correlation between OPER and VRIG shifts across timeframes, from -0.02 (1 year) to 0.14 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

OPER vs. VRIG — Risk / Return Rank

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

OPER

OPER Risk / Return Rank: 100
OPER Sharpe Ratio Rank: 100
OPER Sortino Ratio Rank: 100
OPER Omega Ratio Rank: 100
OPER Calmar Ratio Rank: 100
OPER Martin Ratio Rank: 100

VRIG

VRIG Risk / Return Rank: 99
VRIG Sharpe Ratio Rank: 99
VRIG Sortino Ratio Rank: 99
VRIG Omega Ratio Rank: 99
VRIG Calmar Ratio Rank: 100
VRIG Martin Ratio Rank: 99

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.

OPER vs. VRIG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ClearShares Ultra-Short Maturity ETF (OPER) and Invesco Variable Rate Investment Grade ETF (VRIG). 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.

	OPER	VRIG	Difference
Sharpe ratio: Return per unit of total volatility	14.84	10.08	+4.76
Sortino ratio: Return per unit of downside risk	42.88	24.35	+18.53
Omega ratio: Gain probability vs. loss probability	12.57	5.34	+7.24
Calmar ratio: Return relative to maximum drawdown	60.74	62.12	-1.38
Martin ratio: Return relative to average drawdown	510.88	317.44	+193.43

OPER vs. VRIG - Sharpe Ratio Comparison

The current OPER Sharpe Ratio is 14.84, which is higher than the VRIG Sharpe Ratio of 10.08. The chart below compares the historical Sharpe Ratios of OPER and VRIG, 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

OPER vs. VRIG - Drawdown Comparison

The maximum OPER drawdown since its inception was -2.33%, smaller than the maximum VRIG drawdown of -13.04%. Use the drawdown chart below to compare losses from any high point for OPER and VRIG.

Drawdown Indicators

	OPER	VRIG	Difference
Max Drawdown Largest peak-to-trough decline	-2.33%	-13.04%	+10.71%
Max Drawdown (1Y) Largest decline over 1 year	-0.07%	-0.08%	+0.01%
Max Drawdown (3Y) Largest decline over 3 years	-0.11%	-0.78%	+0.67%
Max Drawdown (5Y) Largest decline over 5 years	-0.13%	-2.28%	+2.15%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-0.16%	-0.27%	+0.11%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.01%	0.02%	-0.01%

Volatility

OPER vs. VRIG - Volatility Comparison

The current volatility for ClearShares Ultra-Short Maturity ETF (OPER) is 0.09%, while Invesco Variable Rate Investment Grade ETF (VRIG) has a volatility of 0.12%. This indicates that OPER experiences smaller price fluctuations and is considered to be less risky than VRIG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OPER	VRIG	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.09%	0.12%	-0.03%
Volatility (6M) Calculated over the trailing 6-month period	0.21%	0.36%	-0.15%
Volatility (1Y) Calculated over the trailing 1-year period	0.27%	0.49%	-0.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.32%	1.29%	-0.97%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.22%	3.79%	-2.57%

OPER vs. VRIG - Expense Ratio Comparison

OPER has a 0.20% expense ratio, which is lower than VRIG's 0.30% expense ratio.

Dividends

OPER vs. VRIG - Dividend Comparison

OPER's dividend yield for the trailing twelve months is around 4.08%, less than VRIG's 4.71% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
OPER ClearShares Ultra-Short Maturity ETF	4.08%	4.32%	5.21%	5.03%	1.71%	0.36%	0.64%	2.08%	0.89%	0.00%	0.00%
VRIG Invesco Variable Rate Investment Grade ETF	4.71%	4.99%	6.09%	5.97%	2.39%	0.78%	1.57%	3.12%	2.89%	2.31%	0.60%

Frequently Asked Questions

Can I hold both OPER and VRIG in my portfolio?

OPER and VRIG have a correlation of -0.02, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OPER or VRIG?

VRIG has higher volatility (0.12%) compared to OPER (0.09%). In terms of maximum drawdown, OPER dropped -2.33% vs VRIG's -13.04%.

Which ETF is better, OPER or VRIG?

On 5-year performance, VRIG leads with 4.49% vs 3.69% for OPER. On fees, OPER is cheaper at 0.20% 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, OPER or VRIG?

Over the 5-year period, VRIG has performed better with a 4.49% return vs 3.69%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, OPER or VRIG?

OPER is cheaper with a 0.20% expense ratio, compared with 0.30% for VRIG.

Which ETF pays a higher dividend yield, OPER or VRIG?

VRIG has the higher dividend yield at 4.71%, compared with 4.08% for OPER.

What is the main difference between OPER and VRIG?

They also come from different issuers: ClearShares and Invesco. Their fees differ too: 0.20% for OPER and 0.30% for VRIG.

Which has better risk-adjusted returns?

OPER currently has the higher Sharpe Ratio (14.84 vs 10.08), 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.