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Welcome to the new RBC iShares digital experience.

Find all things ETFs here: investment strategies, products, insights and more.

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  • Factors help investors understand differences in long-term returns
  • Factor investing can be used to enhance returns or manage risk
  • Each factor is built on an economic and empirical foundation
  • Factor ETFs attempt to capture these drivers of returns in a transparent, low cost, and liquid vehicle

In this video, Hail Yang, Director, iShares Product & Markets, BlackRock Canada looks at why interest in factor-based ETFs is growing, and how investors can use them when building their portfolios.

Watch time: 5 minutes 07 seconds

View transcript

What are factors?

Hail Yang, Director, iShares Product & Markets, BlackRock Canada

To many, factors are the foundation of investing. They are broad, persistent drivers of returns across asset classes and their characteristics have been shown to deliver outperformance over longer timelines.

Investors look for new opportunities in the ETF market

And there’s five of them: value – companies that are trading relatively inexpensive to their fundamentals; size – smaller, more nimble companies; quality – companies with strong fundamentals; momentum – trending stocks or stocks on an upswing—

Investors increasingly looking to factor-based ETFs

And finally, minimum volatility – portfolios of securities that deliver strong downside protection while participating in a lot of upside as well.

Understanding how factor ETFs work

In today’s market environment, we are seeing increased investor demand for factor-based ETFs to deliver excess return or reduced risk in a differentiated way.


Why are factor strategies so relevant today?

The truth is factors have been relevant for a very long time. They’ve been around for decades. These are the same strategies that leading investors, active managers, institutional investors have been employing in their portfolios to seek outperformance and reduce risk. And the research that supports their existence has been around for even longer than decades. What’s changed is technology has changed.

So much in the same way that technology has changed the way we order a taxi or book travel—

Factors are the main driver of returns across asset classes

—Technology advances in computing power and increases of data availability allows us to harness and capture the power of factors in a more efficient way and deliver them at scale and at low cost in an ETF wrapper. You can think of today’s version of factor investing as transparent, rules-based active management delivered through a low-cost ETF wrapper.


How can advisors think about using factors within a portfolio?

Advisors need to understand how factors work to better capture their potential

So if you think about portfolio construction, you might be trying to achieve one of three outcomes. One is to try to be the market. Two would be to try and beat the market. And three would be to try to reduce risk. Area one, trying to be the market, is where you would typically use a traditional index ETF, like the S&P 500 exposure, for example.

RBC iShares offers Canadians a range of factor ETFs

Areas two and three, beat the market or seek reduced risk, have typically been an active proposition that you would normally look to an active manager to solve those two problems. This is an area where we’re seeing increasing interest in factor-based strategies and factor ETFs to deliver outperformance or reduced risk. So if you’re looking for outperformance, you would be looking at value, size, quality and momentum as the factors that you would seek. And if you’re seeking reduced risk, then minimum volatility would be the right factor for you.


How are you seeing advisors implement factor ETFs?

So we’re seeing three very common ways, and I’ll highlight them all.  One is really as a complement to the existing active managers that they’re using in a portfolio.

Common methods advisors implement factor ETFs

  • Complement actively managed holdings in their portfolio
  • Factors increasingly used to express market views
  • Factor strategies can help reduce portfolio concentration risk

So, much in the same way you might use and buy and hold a given active strategy to deliver outperformance or reduced risk,—

Understanding how factors work can help advisors capture their potential

—We’re seeing factor strategies used in the same way to either complement existing managers or in some cases, even replace underperforming active managers. Two, we’re seeing factors increasingly used to express a market view. So factors are cyclical by nature and some will perform better during certain parts of the economic cycle than others will. And so we’re seeing investors express a view on which one they think will perform better at a given point in time using factor rotation-like strategies. And finally, we’re seeing a lot of increasing interest – nowadays, through the pandemic as more and more people are working from home – we’ve seen a real run-up in a handful of technology-related names and that’s led to a lot of concentration risk inside of portfolios. I would divide the five factors up into two categories: cyclical versus defensive factors. In the cyclical camp, we have size and value, which would typically outperform in the early stages of a recovery. Momentum is also a cyclical factor which would typically outperform towards the later stages of an expansion. The defensive factors would be quality and minimum volatility, and these two factors typically outperform during a slowdown or contraction. Factor-based strategies in general are underweight that small basket of technology names, and so we’re seeing more interest in using factor-based ETFs to offset some of the concentration risk that exists in other parts of the portfolio. To put it another way, factor-based strategies and ETFs are seeking outperformance in ways different than owning that concentrated basket of technology-related names.

Factor investing is the strategy of targeting securities with specific characteristics such as value, quality, momentum, size, and minimum volatility. Factors are persistent and well-documented characteristics that can help investors understand differences in expected returns and are supported by a wide body of academic research. Factors have been, and continue to be, tools that professional investors use to seek outperformance. Thanks to exchanged traded funds (ETFs), factor strategies aren’t just for professional investors anymore. 

RBC iShares has identified five factors -- value, quality, momentum, size, and minimum volatility -- that have shown to be resilient across time, markets, asset classes, and have a strong economic rationale.

  1. Value investing strategies select stocks that are lower cost relative to their peers after controlling for fundamentals. Think of value investing as going bargain shopping at the mall. If you’re indifferent between two pairs of shoes at different price points, for example, you should buy the cheaper of the two. It’s a similar concept for stocks.

    According to the 1992 findings of Fama and French, lower cost stocks have historically tended to produce higher returns.1 Value investors are often trying to get more for their money. When evaluating stocks, investors can strive to find value by looking for relatively low prices based on common value metrics such as forward earnings or book value, for example.
  1. Quality investing strategies look for stocks that have higher quality earnings. That means that we’re looking for stocks that are profitable, have low leverage, and demonstrate consistent earnings over time.2 Think of quality investing as trying to find companies that are efficient with capital.

    Like value investors, quality investors may also be looking to get more for their money, but they often focus on the earnings generated by companies as opposed to concentrating on the company’s price.
  1. Momentum investing is concerned with stocks that are trending in a particular direction. We’ve all heard the expression about the wisdom in crowds. The truth is you can’t have a mob without a crowd too. Sometimes investors are irrationally exuberant. Sometimes they are incomprehensibly dour. Academic research has found that stocks that have been trending upwards tend to continue to rise in the short- to medium-term; the opposite can be observed too.3 Momentum strategies evaluate stocks based on how well they have performed over the recent past, such as the trailing six or 12 months.
  1. Size investing focuses on smaller, more nimble companies. Investors can evaluate how large a company is based on their market capitalization.4 A study from 1981 showed that small cap companies tended to outperform their large cap peers.5 There have been many theories on why smaller companies have historically outperformed. While they may have fewer resources than larger competitors, smaller companies may be more nimble, and can potentially more easily adjust and identify new investment opportunities in the marketplace.  
  1. Minimum volatility investing involves building a portfolio of stocks that have exhibited lower volatility compared to the broad market. We’ve known for a long time that volatility (risk) is persistent. Investors can use this by looking at volatilities and correlations6 to form a portfolio that has lower expected volatility for investors. Unlike the other four factors, the goal of minimum volatility is not necessarily to enhance return, but to reduce overall risk.7 This can be a real boon for investors who are looking to stay invested in an asset class while managing the overall risk of their portfolio. As a bonus, there’s findings that show more volatile stocks have historically had lower realized returns than less volatile stocks; these high volatility stocks are often more likely to be excluded in minimum volatility portfolios.8

Why care about the five factors?

Historically, the five highlighted factors have provided positive relative and absolute returns or helped reduce risk, relative to their counterparts.9 Value, quality, momentum, and size have all historically enhanced relative portfolio returns, while minimum volatility has consistently reduced relative risk.7,9 Additionally, the longer the factors have been held, the higher the probability of relative success.9

% of rolling periods factors outperformed their counterparts

why factors bar


Source: Analysis by BlackRock using Ken French data library
(https://mba.tuck.dartmouth.edu/pages/faculty/ken.french/data_library.html) and AQR data set (https://www.aqr.com/Insights/Datasets/Betting-Against-Beta-Equity-Factors-Monthly) as of 1/31/23. Data from July 1963 through January 2023. Low size represented by SMB (small minus big). Value represented by HML (high book-to-market minus low book-to-market). Quality represented by RMW (robust minus weak). Momentum represented by MOM (high prior returns minus low prior returns). Low Vol represented by BAB (betting against beta). Counterparts for low size, value, quality, momentum, and low vol are larger firms, higher priced stocks, less profitable stocks, downward trending stocks, and higher beta securities.9
Column chart showing the % of rolling periods where each of the five factors discussed (value, quality, momentum, size, minimum volatility), outperformed their relative counterparts. Time intervals are 1, 3, and 5 year periods and uses data from July 1963 – January 2023.

With Factor ETFs, investors can get cost-effective access to systematic sources of higher potential expected returns. And they can do so in a way that helps them reduce the guesswork. You don’t have to go stock by stock.

But when and how might investors consider using Factor ETFs in a portfolio? Investors have traditionally used Factor ETFs in three main ways:

  • Seeking outperformance: Specific factors might be preferred depending on where we are in the economic cycle: pro-cyclical factors such as value and small size might do well during market recovery, while momentum factors may be able to capture strong rallies in the markets.
  • Managing risk in a portfolio: For example, an investor working at a large technology company may look to add a value ETF to help offset the overweight to growth they currently have from their company’s stock. Further, they could aim to de-risk within their equity sleeve by using a minimum volatility ETF.
  • Expressing a short-term view on markets: Worried about recession? Min vol could be used to manage risk.7 Worried about inflation? Companies with higher quality earnings may be worth considering for your portfolio.

There’s one more use case that really makes itself clear for investors who choose to adopt factors into their portfolios. A single vehicle that combines factor exposures can be used to form the core for your portfolio. These types of “multifactor” strategies often seek exposure to factors that have historically outperformed the broad market while also maintaining a similar level of market risk. Multifactor ETFs also offer operational benefits for investors, since having multiple factors in a single vehicle can reduce the amount of rebalancing that investors need to manage themselves. Managing multiple factors internally can also help manage turnover, which can contribute to minimizing the costs of managing a multifactor fund.

Investing in factors may help investors enhance portfolio returns or reduce portfolio volatility. Factor ETFs allow investors to capture these well vetted and tested drivers of returns – value, quality, momentum, size, min vol, and multifactor – in a low cost and efficient way.

Further insights and resources:

For more information about ETF investing, visit our ETF Learning Centre.

1Fama, Eugene F & French, Kenneth R, 1992. "The Cross-Section of Expected Stock Returns," Journal of Finance, American Finance Association, vol. 47(2), pages 427-465, June.

2Novy - Marx, Robert, “The Other Side of Value: The Gross Profitability Premium , ” Journal of Financial Economics, 108(1) , 1 - 28, 2013.

3Narasimhan Jegadeesh and Sheridan Titman, “Returns to Buying Winners and Selling Losers: Implications for Stock Market Efficiency”, Journal of Finance, March 1993.

4Market capitalization is the total value of all outstanding shares of a company at the current price.

5Banz, Rolf W., 1981. "The relationship between return and market value of common stocks," Journal of Financial Economics, Elsevier, vol. 9(1), pages 3-18, March.

6Correlation is a statistic that explains how variables move in coordination. A positive correlation implies that the variables move in the same direction. A negative correlation implies they move in opposite directions.

7Risk is referred to as a measure of annualized standard deviation. Standard deviation measures how dispersed returns are around the average. A higher standard deviation indicates that returns are spread out over a larger range of values and thus, more volatile.

8Ang, A., R. H. Hodrick, Y. Xing, and X. Zhang, 2006. The Cross Section of Volatility and Expected Returns, Journal of Finance 61, 259-299.

9Ken French data library (https://mba.tuck.dartmouth.edu/pages/faculty/ken.french/data_library.html) and AQR data set (https://www.aqr.com/Insights/Datasets/Betting-Against-Beta-Equity-Factors-Monthly) as of 6/30/22. Data from July 1963 through June 2022. Low size represented by SMB (small minus big). Value represented by HML (high book-to-market minus low book-to-market). Quality represented by RMW (robust minus weak). Momentum represented by UMD (up minus down). Low Vol represented by BAB (betting against beta). Counterparts for low size, value, quality, momentum, and low vol are larger firms, higher priced stocks, less profitable stocks, downward trending stocks, and higher beta securities.

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Disclosure

Last reviewed: January 1, 2023

RBC iShares ETFs are comprised of RBC ETFs managed by RBC Global Asset Management Inc. and iShares ETFs managed by BlackRock Asset Management Canada Limited. Commissions, trailing commissions, management fees and expenses all may be associated with investing in exchange-traded funds (ETFs). Please read the relevant prospectus before investing. ETFs are not guaranteed, their values change frequently and past performance may not be repeated. Tax, investment and all other decisions should be made, as appropriate, only with guidance from a qualified professional.


The information and opinions herein are provided for informational purposes only and should not be relied upon as the basis for your investment decisions.


The links in the footer under the heading “Investor Information” below relate to RBC Global Asset Management Inc. For information about BlackRock Asset Management Canada Limited and its affiliates, please visit www.blackrock.com/ca.


Publication date: June 2023


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