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IUS vs. MGC
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IUS vs. MGC

Last updated Aug 4, 2026
Documentation

IUS (Invesco RAFI Strategic US ETF) and MGC (Vanguard Mega Cap ETF) are both Large Cap Blend Equities funds - IUS tracks the Invesco Strategic US Index while MGC tracks the CRSP US Mega Cap Index. Both are passively managed. Over the past 5 years, IUS returned 14.64%/yr vs 13.59%/yr for MGC. Their correlation of 0.83 means they have usually moved in the same direction. IUS charges 0.19%/yr vs 0.05%/yr for MGC.

Performance

IUS vs. MGC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco RAFI Strategic US ETF (IUS) and Vanguard Mega Cap ETF (MGC). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, IUS achieves a 20.93% return, which is significantly higher than MGC's 10.99% return.

IUS

1D
1.02%
1M
3.33%
6M
15.45%
YTD
20.93%
1Y
36.15%
3Y*
20.44%
5Y*
14.64%
10Y*
—
ALL TIME*
15.64%

MGC

1D
1.55%
1M
1.66%
6M
9.37%
YTD
10.99%
1Y
23.77%
3Y*
22.08%
5Y*
13.59%
10Y*
15.89%
ALL TIME*
11.55%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

PositionAvg. Volume Value (2W)Avg. Volume Value (1M)Avg. Volume Value (3M)

IUS

Invesco RAFI Strategic US ETF
$4.63M$3.51M$3.40M

MGC

Vanguard Mega Cap ETF
$21.42M$23.07M$28.62M

IUS vs. MGC - Yearly Performance Comparison

2026 (YTD)20252024202320222021202020192018
IUS
Invesco RAFI Strategic US ETF		20.93%16.94%16.51%20.79%-8.34%32.17%15.09%29.34%-12.28%
MGC
Vanguard Mega Cap ETF		10.99%19.31%27.16%29.77%-19.95%27.58%21.57%31.14%-11.98%

Correlation

The correlation between IUS and MGC 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.

0.82

Correlation (5Y)
Shows whether the relationship held over a longer period.

0.89

Correlation (All Time)
Calculated using the full available price history since Sep 12, 2018

0.83

The correlation between IUS and MGC shifts across timeframes, from 0.77 (1 year) to 0.89 (5 years), reflecting how their relationship changes across market environments.

IUS vs. MGC - Sectors Allocation Comparison

Sectors
IUS
MGC

Technology

21.7%
42.8%

Healthcare

15.4%
9.2%

Communication Services

11.2%
11.5%

Consumer Cyclical

11.2%
9.2%

Financial Services

9.6%
11.3%

Industrials

9.0%
6.7%

Energy

8.5%
2.2%

Consumer Defensive

7.6%
4.4%

Basic Materials

3.1%
1.1%

Utilities

1.4%
0.8%

Real Estate

0.6%
0.9%

Technology

IUS
21.7%
MGC
42.8%

Healthcare

IUS
15.4%
MGC
9.2%

Communication Services

IUS
11.2%
MGC
11.5%

Consumer Cyclical

IUS
11.2%
MGC
9.2%

Financial Services

IUS
9.6%
MGC
11.3%

Industrials

IUS
9.0%
MGC
6.7%

Energy

IUS
8.5%
MGC
2.2%

Consumer Defensive

IUS
7.6%
MGC
4.4%

Basic Materials

IUS
3.1%
MGC
1.1%

Utilities

IUS
1.4%
MGC
0.8%

Real Estate

IUS
0.6%
MGC
0.9%

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

Invesco RAFI Strategic US ETF

Vanguard Mega Cap ETF

Often compared with IUS:
IUS vs. EPSIUS vs. BSIIXIUS vs. IUSGIUS vs. QLVIUS vs. SCHDIUS vs. FMDEIUS vs. XLK
Often compared with MGC:
MGC vs. MGKMGC vs. VOOMGC vs. MGVMGC vs. FGRTXMGC vs. QQQMGC vs. VOOGMGC vs. VONG

Return for Risk

IUS vs. MGC — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.
IUS
IUS Risk / Return Rank: 9696
Overall Rank
IUS Sharpe Ratio Rank: 9797
Sharpe Ratio Rank
IUS Sortino Ratio Rank: 9696
Sortino Ratio Rank
IUS Omega Ratio Rank: 9696
Omega Ratio Rank
IUS Calmar Ratio Rank: 9696
Calmar Ratio Rank
IUS Martin Ratio Rank: 9696
Martin Ratio Rank
MGC
MGC Risk / Return Rank: 7474
Overall Rank
MGC Sharpe Ratio Rank: 7676
Sharpe Ratio Rank
MGC Sortino Ratio Rank: 7474
Sortino Ratio Rank
MGC Omega Ratio Rank: 7474
Omega Ratio Rank
MGC Calmar Ratio Rank: 6868
Calmar Ratio Rank
MGC Martin Ratio Rank: 7676
Martin Ratio Rank
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.

IUS vs. MGC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco RAFI Strategic US ETF (IUS) and Vanguard Mega Cap ETF (MGC). 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.

IUSMGCDifference
Sharpe ratioReturn per unit of total volatility
3.43
1.76

+1.67

Sortino ratioReturn per unit of downside risk
4.66
2.44

+2.22

Omega ratioGain probability vs. loss probability

1.64

1.31

+0.32

Calmar ratioReturn relative to maximum drawdown

5.91

2.42

+3.48

Martin ratioReturn relative to average drawdown

25.15

9.79

+15.35

IUS vs. MGC - Sharpe Ratio Comparison

The current IUS Sharpe Ratio is 3.43, which is higher than the MGC Sharpe Ratio of 1.76. The chart below compares the historical Sharpe Ratios of IUS and MGC, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

IUS vs. MGC - Drawdown Comparison

The maximum IUS drawdown since its inception was -34.67%, smaller than the maximum MGC drawdown of -52.26%. Use the drawdown chart below to compare losses from any high point for IUS and MGC.

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Drawdown Indicators

IUSMGCDifference

Max Drawdown

Largest peak-to-trough decline

-34.67%

-52.26%

+17.59%

Max Drawdown (1Y)

Largest decline over 1 year

-6.15%

-9.85%

+3.70%

Max Drawdown (3Y)

Largest decline over 3 years

-15.61%

-19.28%

+3.67%

Max Drawdown (5Y)

Largest decline over 5 years

-18.72%

-25.74%

+7.02%

Max Drawdown (10Y)

Largest decline over 10 years

—

-33.07%

—

Current Drawdown

Current decline from peak

0.00%

-0.62%

+0.62%

Average Drawdown

Average peak-to-trough decline

-3.80%

-7.14%

+3.34%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.44%

2.43%

-0.99%

Volatility

IUS vs. MGC - Volatility Comparison

The current volatility for Invesco RAFI Strategic US ETF (IUS) is 2.60%, while Vanguard Mega Cap ETF (MGC) has a volatility of 4.33%. This indicates that IUS experiences smaller price fluctuations and is considered to be less risky than MGC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

IUSMGCDifference

Volatility (1M)

Calculated over the trailing 1-month period

2.60%

4.33%

-1.73%

Volatility (6M)

Calculated over the trailing 6-month period

7.92%

10.84%

-2.92%

Volatility (1Y)

Calculated over the trailing 1-year period

10.60%

13.55%

-2.95%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

14.99%

17.45%

-2.46%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

17.92%

18.26%

-0.34%

IUS vs. MGC - Expense Ratio Comparison

IUS has a 0.19% expense ratio, which is higher than MGC's 0.05% 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

IUS vs. MGC - Dividend Comparison

IUS's dividend yield for the trailing twelve months is around 1.23%, more than MGC's 0.91% yield.

PositionTTM20252024202320222021202020192018201720162015
IUS
Invesco RAFI Strategic US ETF		1.23%1.48%1.52%1.72%1.78%1.46%1.74%1.77%0.73%0.00%0.00%0.00%
MGC
Vanguard Mega Cap ETF		0.91%0.93%1.15%1.35%1.65%1.17%1.45%1.81%2.10%1.83%2.14%2.11%

Frequently Asked Questions

IUS and MGC 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.

MGC has higher volatility (4.33%) compared to IUS (2.60%). In terms of maximum drawdown, IUS dropped -34.67% vs MGC's -52.26%.

On 5-year performance, IUS leads with 14.64% vs 13.59% for MGC. On fees, MGC is cheaper at 0.05% per year. On volatility, IUS has been the lower-risk option at 2.60%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 5-year period, IUS has performed better with a 14.64% return vs 13.59%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

MGC is cheaper with a 0.05% expense ratio, compared with 0.19% for IUS.

IUS has the higher dividend yield at 1.23%, compared with 0.91% for MGC.

IUS tracks Invesco Strategic US Index, while MGC tracks CRSP US Mega Cap Index. They also come from different issuers: Invesco and Vanguard. Their fees differ too: 0.19% for IUS and 0.05% for MGC.

IUS currently has the higher Sharpe Ratio (3.43 vs 1.76), 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.

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