Andrew Ang on Factor Investing

Great interview with Andrew Ang on Factor investing.

 

Two key take outs from my perspective in relation to Factor Investing.

 

How to determine what factors to invest in?

  1. Ensure the factor generates a return as a reward for bearing a specific set of risks. The risk return profile results from market structures, an economic value, or investors’ behavioural bias.
  2. The excess return from the factor needs to be persistent and will be there over time.
  3. The factor is a unique and a differentiated source of return, different to the risk return profile of the market (beta), and lowly correlated with other factors.
  4. The factor is scalable, the factor can be delivered relatively cheaply and with scale.

 

As you know, there are lots of reported factors (the factor zoo). I tend to agree that there are a limited number, value, momentum, quality, size, and minimum volatility appear to have the greatest foundation of work in supporting their existence, economic rationale, and persistence over time.

 

How should factors be used?

  1. To complement an existing portfolio of active managers, preferable active managers with genuine idiosyncratic risk exposures e.g. non-factors more company specific risks.
  2.  Replace a traditional index exposure to get a more efficient market exposure, this could enhance your returns and/or reduce risk, see previous post on short comings of passive indexing.
  3.  Express a view within a portfolio e.g. over or under weight certain factors that are attractive or unattractive at certain points in the business cycle.

 

Happy investing.

 

Please see my Disclosure Statement

 

Global Investment Ideas from New Zealand. Building more Robust Investment Portfolios.

Limitations of Passive Index Investing

The short comings of investing into market index benchmarks are not widely discussed, nor understood.

Market indices suffer from two key short comings:

  1. They have exposures to unrewarded risks, they are therefore suboptimal e.g. think concentration risk, the best example of which is the Finnish Market Index which at one point Nokia made up over 50% of the Index. In New Zealand Telecom once made up over 30% of the Market Index.
  1. Poor Diversification of rewarding risk exposures e.g. they are not efficient. See discussion below.

 

The first short coming is well understood and often highlighted.  This is an issue with the current US market with the growing dominance of the Technology stocks which now make up 25% of the market.  Apple currently makes up around 4% of the S&P 500, this compares to IBM’s 7% weighting in the late 1970s.  Transport stocks dominated the S&P 500 for over 60 years in the mid-1880s to early 1900s.  Therefore unrewarded risks, such as concentration risks, have been a common feature of market indices and benchmarks.

 

The second short coming is less well understood.  In effect, market indices are poorly allocated to known risk premia from which excess returns can be generated from.

For example, and to the point, given their construction market indices are underweight the value and size premia.  These are known systematics risks for which investors are rewarded e.g. the value and size premia

 

Of course we are talking about the rise of Factor Investing, which I covered in an earlier post.

 

We are also not talking about a “factor zoo”, there are a number of limited rewarding risk premia, which are likely to include the likes of value and size (small cap), momentum, and low volatility.  Profitability, quality, and carry are potentially others to consider as well.  Implementation of Factor strategies is key.

 

Fama and French, the fathers of Finance, developed the 3 Factor model in the 1990s.  The 3 factor model includes market risk, value, and size.  It has now become a 5 factor model.  Their pioneering work forms the basis of a very successful global Funds Management business.

This stuff is not new, yet large amounts of money flow into the inefficient and sub-optimal market index funds.  Bond indices are more suboptimal than equity market indices.

 

Therefore, factor exposures provide a more efficient exposure for investors.

The go to analogy on understanding Factors comes from Professor Andrew Ang, factors in markets are like nutrients in food:

“Factors are to assets what nutrients are to food. Just like ‘eating right’ requires you to look through food labels to understand the nutrient content, ‘investing right’ means looking through asset class labels for the underlying factor risks. It’s the nutrients in the food that matter. And similarly, the factors matter, not the asset labels.”

 

Factor investing is part of a strong movement by institutional investors away from investing into “asset classes” but thinking more about looking through asset class labels and investing into the underlying factors.

 

Many institutional investors understand that true portfolio diversification does not come from investing in many different asset classes but comes from investing in different risk factors.

The objective is to implement a portfolio with exposures to a broad set of different return and risk outcomes.

True portfolio diversification is achieved by investing in different risk factors that drive the asset classes e.g. duration, economic growth, low volatility, value, and momentum.

 

This is part of a wider shift within the global Wealth and Funds Management industry.  The industrial revolution that EDHEC Risk discusses.  There are better ways of doing things, such as Goal Based Investing.

 

Remember, Modern Portfolio Theory (MPT) is over 65 years old, it is hardly modern anymore.  Although the fundamentals of the benefits of diversification remain, greater insights have been gained over the years and more efficient approaches to building robust portfolios have been developed.

 

Happy investing.

 

Please see my Disclosure Statement

 

Global Investment Ideas from New Zealand. Building more Robust Investment Portfolios.


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Asness on Hedge Fund Returns and Buffet Bet Revisited

Earlier in the year I wrote a post about the Buffett Bet.

To recap, “The Bet” was with Protégé Partners, who picked five “funds of funds” hedge funds they expected would outperform the S&P 500 over the 10 year period ending December 2017.

The bet was made in December 2007, when the market was reasonably expensive and the Global Financial Crisis (GFC) was just around the corner.

Needless to say, Buffet won.  The S&P 500 easily outperformed the Hedge Fund selection over the 10 year period.

I made three points earlier in the year:

  1. I’d never bet against Buffet!
  1. I would also not expect a Funds of Funds hedge Fund to consistently outperform the S&P 500, let alone a combination of five Funds of Fund.

This is not to say Hedged Funds should not form part of a “truly” diversified investment portfolio.  They should.  Nevertheless, I am unconvinced their role is to provide equity plus returns.

  1. Most, if not all, investor’s investment objective(s) is not to beat the S&P 500. Investment Objectives are personal and targeted e.g. Goal Based Investing to meet future retirement income or endowments

Finally, someone from the Hedge Fund Industry has come out a said it: Hedge Funds should not be compared to the performance of investing in equities.

Cliff Asness from AQR has, and not for the first time, recently written an article about why Hedge Fund returns should not be compared to equity market returns such as the S&P 500 Index, see The Hedgie in Winter.

The key point Asness makes is that Hedge Funds are not 100% invested in equities.  He estimates that they are in effect 50% invested in equities.  If we use beta terms, where a beta of 1.0 =  100% equities, Hedge Funds have a beta of 0.5.  (For those who are wondering what Beta is, Beta is a measure of how sensitivity an investment is to a market index e.g. S&P 500.  Put another way, how much of the returns from the market index can explain the returns of the investment.  Therefore, with a beta of 0.5 we would expect hedge funds to be less volatile than equities and equity markets performance would only explain some of the returns from hedge funds.)

Asness expresses it more succinctly:

“Comparing hedge funds to 100% equities is flat-out silly. Hedge funds have historically, rather consistently, delivered equity exposure (beta to my fellow geeks) just under 50%. In fact much of their point is, supposedly, to be different from equities. I mean that they are at least partly hedged investments. Put more bluntly, it is in the freaking name!”

That’s right, Hedge Funds look to reduce their equity market exposure, hedge it out.  Therefore they will not capture all of an equities market upside.  Similarly, when equity markets fall significantly, they are not capturing all of this downside as well! i.e. Hedge Funds tend to outperform equity markets in equity bear markets.

Certainly, hedge funds are not going to outperform equities in a strong bull market, as we have recently experienced, as they are not 100% invested in equities.  They are not equities.

Well, you probably would expect a hedge fund manager to say this.  Yip, but I would say he is right on the money.

Furthermore, it is not as if Asness lets Hedge Funds off the hook.  From further analysis in the paper Asness notes that Hedge Fund performance has been “petering out” since the Global Financial Crisis (GFC).  This means they have not added or subtracted much value since the GFC.

I take this to mean they have struggled to meet their investment objectives and historical rate of returns, albeit they may well have delivered mildly positive returns.  Which is not as disastrous as often reported.

The “petering out” of Hedge Fund performance is highlighted by Asness as an area of concern.  The data he presents provides no proofs as to why.  He concludes that Hedge Funds may be less special than before.

That is certainly something to dwell upon.  Hedge Funds can play an important role in a robust portfolio and achieving true portfolio diversification.  The observation by Asness should be considered in the selection of Hedge Fund managers and strategies.

Lastly, there is change occurring across the Hedge Funds industry.  This expected change is captured in the recently published AIMA paper (Alternative Investment Management Association), Perspectives, Industry leaders on the future of the Hedge Fund IndustryAIMA paper (Alternative Investment Management Association), Perspectives, Industry leaders on the future of the Hedge Fund Industry. This includes more transparency and lower fee structures.

From the report: “Most people today look to hedge funds for diversification, i.e., an alternate return stream, with low beta and correlation to traditional investments. In the past, the driver of hedge fund interest was high expected returns and growth of capital.”

This is consistent with Hedge Funds playing a valuable role in a truly diversified portfolio.

Happy investing.

Please see my Disclosure Statement

 

Global Investment Ideas from New Zealand. Building more Robust Investment Portfolios.

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Unintended Portfolio Risks – Fixed Interest example

A lot of investment professionals understand the issue outlined in this post.

Not so the investment public, for example KiwiSaver Investors.  Are they aware that their “Conservative” Kiwisaver Default Funds have become more risky over recent years?

And how are Investment Committees addressing the limitations of market indices?  Particularly those who blindly follow them.

It worries me with the high concentration of international fixed interest in the KiwiSaver Default Funds.  There is a lot of room for disappointment.

 

Many institutional investors understand that true portfolio diversification does not come from investing in many different asset classes but comes from investing in different risk factors.  See earlier post More Asset Classes Does not Equal More Diversification.

The objective is to implement a portfolio with exposures to a broad set of different return and risk outcomes

True portfolio diversification is achieved by investing in different risk factors that drive the asset classes e.g. duration, economic growth, low volatility, value, and growth.

 

An example of the benefits of this approach is very evident in fixed interest.

As we know, duration is a key risk factor that drives fixed interest securities. (Duration is a measure of a fixed interest securities price/value sensitivity to changes in interest rates.  The longer the duration e.g. 10 years, the great the securities price sensitivity and change in value from movements in interest rates i.e. a 90 day cash security has very little duration risk and value sensitivity to changes in interest rates.  Lastly, as interest rates increase the price/value of a fixed interest security falls.  Conversely if interest rates fall the price rises.)

 

Fixed interest indices have become more risky over the last 10 years.  Not because interest rates have reached historical lows.  Many have predicted we witnessed the end of a 35 year bull market in fixed interest markets last year.

The duration of most international fixed interest indices has increased over the last 10 years.  Duration being the measure of risk.

Therefore, fixed interest indices have become more risky from an interest rate perspective given an increase in duration.

 

By way of example, the duration of most international fixed interest indices have increased by 1.5 – 2 years over the last 8-10 years.

In a recent piece by Blackstone they noted the duration of the Bloomberg Barclays Agg Bond Index moved from 4.4 years in 2016 to 6.3 years (as of 5/2018).

Blackstone also noted that the biggest risk to investors is not recognizing that the data changed. History proves bond yields do move higher.

 

What does this mean for a number of the Kiwisaver Default Funds that have around 30% of their portfolio invested in international fixed interest?

In 2008, a 30% allocation to international fixed interest meant a duration contribution to a multi-asset portfolio of 1.65 years, assuming an index duration of 5.5 years.

In 2018, the 30% allocation to international fixed interest means a duration contribution to a multi-asset portfolio of 2.1 years, assuming an index duration of 7.0 years.

Therefore, the duration risk of the portfolio has increased by around half a year, an increase of almost a third.

As a result the multi-asset portfolio has become more volatile to movements in interest rates.

 

So what can be done?

  1. A new index with a lower duration could be used. It would need to be 5.5 years to bring the multi-asset portfolio’s risk back to levels displayed in 2008, all else equal.
  1. The portfolio allocation to global fixed interest could be reduced. The multi-asset portfolio weighting would need to be reduced to 24% from 30%, a reduction of 6%, to bring the portfolio’s duration risk back to the levels displayed in 2008, all else equal.
  1. A combination of the above.

 

However, on all occasions, Portfolio risk has been brought back to levels of 10 years ago.  Further action would be required if one had a negative view on the outlook for interest rates and wanted to de-risk the portfolio further.  Noting we are probably at the end of 35 year bull market in fixed interest.

 

This issue is often exasperated further by increasing the multi-assets portfolio’s allocation to Listed Property and Infrastructure as a means to increase yield, given a reduction in interest rates.  Listed property and infrastructure are interest rate sensitive sectors of the equity markets.

Therefore, increasing allocations to these sectors often only increases portfolio duration risk and equity risk at the same time.  Not great if interest rates increase sharply, as they have over the last year internationally.

Portfolio risk has not been reduced if a factor focused approach is taken.  A new asset class does not necessarily reduce portfolio risk, despite what a portfolio optimisation model may say!

 

In conclusion, and the key point, it is not how much international and NZ Fixed Interest to allocate to within a portfolio that is important.  What is importnat is how much duration risk should the portfolio have in meeting its investment objectives.

Investment committees should not be debating the level of allocation to international or NZ fixed interest without first considering what is the most appropriate level of portfolio duration risk to target.  This is a different conversation and focus.

Implementation of the duration target can then be made in relation to the international and NZ fixed interest allocation split.  An issue in this consideration is that NZ investors have NZ liabilities e.g. NZ inflation risk

This is a subtle but an important shift in thinking to build more robust portfolios.

 

Happy investing.

 

Please see my Disclosure Statement

Global Investment Ideas from New Zealand. Building more Robust Investment Portfolios.

The Market Fox interviews a Wise Owl of the Australian Investment Industry

This is worth sharing, a Podcast interview by Daniel Griolio with Jack Gray, an Australian investment industry veteran.

This is a great interview for those new and old to the industry.

 

Although Jack is wise, he is not silent like an owl.  Jack is well known to many within the industry for his forthright views, okay strong opinions.  Which is great, we need more of this to challenge the status quo and to have intellectually honest debates.  Not to make things more complicated but to challenge some of the industry practices.  Jack touches on the downside of holding strong beliefs and being willing to share them in the Podcast, it comes with a cost.  It is who he is, he calls out if he believes things are wrong.

Jack joined the investment industry later in life after a career in Academia, he talks about how he had to learn things from scratch, there are some great insights here e.g. what advice would you give to a young Jack Gray starting out?

The interview is wide ranging and Daniel does a great job keeping it flowing, with lots of good discussion, stories, and introspection.

Topics include:

  • thinking about probabilities;
  • heuristics;
  • you don’t need a lot of maths to be comfortable investing;
  • IQ vs temperament in investing successfully;
  • the short term focus of the industry;
  • industry agency issues;
  • investment firms learning to play to their strengths and being different;
  • IA; and
  • Robo Advice.

 

Happy investing.

Please see my Disclosure Statement

 

Global Investment Ideas from New Zealand. Building more Robust Investment Portfolios.