Should Invesco S&P MidCap 400 Revenue ETF (RWK) Be on Your Investing Radar?

Launched on February 22, 2008, the Invesco S&P MidCap 400 Revenue ETF (RWK) is a passively managed exchange traded fund designed to provide a broad exposure to the Mid Cap Value segment of the US equity market.

The fund is sponsored by Invesco. It has amassed assets over $1.36 billion, making it one of the average sized ETFs attempting to match the Mid Cap Value segment of the US equity market.

Why Mid Cap Value

Mid cap companies, with market capitalization in the range of $2 billion and $10 billion, offer investors many things that small and large companies don't, including less risk and higher growth opportunities. Thus they have a nice balance of growth potential and stability.

While value stocks have lower than average price-to-earnings and price-to-book ratios, they also have lower than average sales and earnings growth rates. When you look at long-term performance, value stocks have outperformed growth stocks in nearly all markets. But in strong bull markets, growth stocks are more likely to be winners.

Costs

When considering an ETF's total return, expense ratios are an important factor, and cheaper funds can significantly outperform their more expensive counterparts in the long term if all other factors remain equal.

Annual operating expenses for this ETF are 0.39%, putting it on par with most peer products in the space.

It has a 12-month trailing dividend yield of 0.98%.

Sector Exposure and Top Holdings

Even though ETFs offer diversified exposure that minimizes single stock risk, investors should also look at the actual holdings inside the fund. Luckily, most ETFs are very transparent products that disclose their holdings on a daily basis.

This ETF has heaviest allocation to the Industrials sector -- about 22% of the portfolio. Consumer Discretionary and Financials round out the top three.

Looking at individual holdings, Performance Food Group Co (PFGC) accounts for about 3.05% of total assets, followed by Albertsons Cos Inc (ACI) and American Airlines Group Inc (AAL).

The top 10 holdings account for about 19.03% of total assets under management.

Performance and Risk

RWK seeks to match the performance of the OFI Revenue Weighted Mid Cap Index before fees and expenses. The S&P MidCap 400 Revenue-Weighted Index is constructed using a rules-based methodology that re-weights the constituent securities of the S&P MidCap 400 Index according to the revenue earned by the companies in the parent index, subject to a maximum 5% per company weighting.

The ETF has added about 20.86% so far this year and was up about 24.67% in the last one year (as of 08/14/2026). In the past 52-week period, it has traded between $118.54 and $152.18.

The ETF has a beta of 1.06 and standard deviation of 18.4% for the trailing three-year period, making it a medium risk choice in the space. With about 401 holdings, it effectively diversifies company-specific risk.

Alternatives

Invesco S&P MidCap 400 Revenue ETF carries a Zacks ETF Rank of 3 (Hold), which is based on expected asset class return, expense ratio, and momentum, among other factors. Thus, RWK is a good option for those seeking exposure to the Style Box - Mid Cap Value area of the market. Investors might also want to consider some other ETF options in the space.

The iShares Russell Mid-Cap Value ETF (IWS) and the Vanguard Morningstar Mid-Cap Value ETF (VOE) track a similar index. While iShares Russell Mid-Cap Value ETF has $16.06 billion in assets, Vanguard Morningstar Mid-Cap Value ETF has $24.54 billion. IWS has an expense ratio of 0.23% and VOE charges 0.05%.

Bottom-Line

Passively managed ETFs are becoming increasingly popular with institutional as well as retail investors due to their low cost, transparency, flexibility and tax efficiency. They are excellent vehicles for long term investors.

To learn more about this product and other ETFs, screen for products that match your investment objectives and read articles on latest developments in the ETF investing universe, please visit Zacks ETF Center.

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This article originally published on Zacks Investment Research (zacks.com).

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