The low volatility phenomenon (and what it means for your portfolios)

In this episode of The Pitch, State Street Global Advisors' Bruce Apted takes a deep dive into the behavioural finance phenomenon.
Ally Selby

Livewire Markets

Taking a punt on the market's fastest-growing, but most volatile stocks can pay off, right? After all, high risk could mean higher returns. 

Interestingly, and perhaps counterintuitively, that actually isn't the case - at least, according to behavioural finance theory. In fact, the low volatility phenomenon has found that stocks displaying lower volatility go on to achieve higher returns than their more volatile counterparts. 

This is because they typically fall less in down markets - meaning over the long term, they tend to generate higher risk-adjusted returns. 

In this episode of The Pitch, State Street Global Advisors' Bruce Apted provides a thorough explanation of the low volatility phenomenon, outlines the types of businesses that fit into this "boring but beautiful" category, and shares what would need to happen for the market's current preference for high volatility stocks to reverse. 

Note: This video was recorded on Wednesday 10 April 2024. You can watch the video or read an edited transcript below. 


Edited Transcript 

Ally Selby: Hello, and welcome to Livewire's The Pitch. I'm Ally Selby, and today we're joined by State Street Global Advisors' Bruce Apted for a deep dive into the low-volatility phenomenon. We're going to learn what that even is, as well as what it means for your portfolios. Thanks so much for joining us today, Bruce.

What is the low-volatility phenomenon?

Bruce Apted: It's an interesting one. At the highest level, it's really an observation that, historically, you get a higher return, but you also get this lower volatility profile. It's a more defensive equity profile. So, at the highest level that is what it is, and there are obviously layers to that. And I think one of the things to think about is, why would that be the case? Why would you get out-performance from low volatility? It might be a bit counterintuitive, perhaps. And really, where that comes from is the strength of having more defensive positions in your portfolio. They lose less in down markets and when markets are volatile, and so that's where they get their out-performance from.

Are there any anecdotes that you think can better illustrate that?

Bruce Apted: There are ones in the market and there are also ones outside of the market that I think a lot of people can relate to. I think most of us have seen super lottos and very large lottery opportunities, and many of our friends have bought lottery tickets. It's something that is documented in literature as well. It's known as the lottery effect. And what it is, is that investors or individuals are quite interested in very large payoffs. They're kind of sexy. They're things that people are attracted to. But there also is a super-low probability of them actually ever getting any return from it.

And if you actually look at it from an expected value point of view, you find that you actually have a negative expected value. So all of us who go and buy lottery tickets are essentially throwing away money. But it's a phenomenon that continues to persist, and there are businesses that have been built around that. And so it's an irrational behaviour that we see, and that is partly manifested in why people are interested in these high-volatility stocks with these potentially high payoffs versus stocks that are boring and dull and just consistent return-generating stocks.

We've seen growth stocks outperform in recent times. What would a catalyst be for that to reverse?

Bruce Apted: We see lots of different themes going on in markets, and I think it depends on how you classify some of those things around growth and high beta. I would actually try and differentiate a little bit between high-volatility stocks and growth stocks. There are some growth stocks recently that have gone up, and they've gone up for good reason. But there have also been some interesting observations - we've just seen high-volatility stocks being in favour, and low-volatility stocks being out of favour. Normally what you need is some sort of changing risk preferences for investors to start focusing on some of the risks in the economy, and some of the risks in markets, to start gravitating towards some of those lower beta stocks and rotating out of some of those higher beta stocks that don't have the strong fundamentals.

What kinds of businesses would fit into that boring but beautiful category?

Bruce Apted: So the obvious ones are things where they're very robust to changes in economic conditions. So what would that be? Healthcare is a classic example. If we have issues with our health, it doesn't matter how expensive that is, we're going to spend that money on that health and that will be supportive of those businesses regardless of the economic activity.  

I think the other obvious one that everyone can relate to is staples. We all buy food and we buy our alcohol and different things like that. So those things are purchased regardless of the economic environment, and so they're much more stable and much less sensitive to changes in economic conditions. And on the flip side, you've got some of those other types of businesses like metals and mining companies that are very leveraged to global growth and positive changes in those conditions. So they're the more cyclical ones that tend to be a bit more volatile.

Maybe just two other little anecdotes of examples of stocks that fit into that high volatility, high payoff, but not good long-term investment structure. Think about something like biotech. They're researching, trying to develop a new drug to do something wonderful for the world, which, if it's successful, will have huge applications and huge potential, but it's very hard to bring those to market and very hard to get success in that space. So there's a low probability of success, and a huge payoff if you get it right. 

The other one would be an explorer. We have lots of small metals and mining companies in Australia. They stake their claim in the ground, and people are excited by that potential upside if they do find something. And it's a large payoff if they do, but also a very low probability, and there are lots of costs involved in getting to that endpoint. So it can be a very volatile journey for them.

Ally Selby: Okay. Well, thank you so much for your time today, Bruce. It was a pleasure to have you on The Pitch.

Bruce Apted: Thanks, Ally. Great to be here.

Ally Selby: If you enjoyed that too, don't forget to subscribe to Livewire's YouTube channel. We're adding so much great content just like this every single week.

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Bruce's fund invests in a diversified portfolio of approximately 50-100 Australian listed securities across a range of sectors. The strategy looks for high quality companies that are reasonably valued and have an improving growth outlook and positive investor sentiment

Managed Fund
State Street Australian Equity Fund
Australian Shares
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State Street Global Advisors, Australia, Limited (AFSL Number 238276, ABN 42 003 914 225) (“SSGA Australia”). Registered office: Level 14, 420 George Street, Sydney, NSW 2000, Australia · Telephone: +612 9240-7600 · Web: ssga.com. Investing involves risk including the risk of loss of principal. This material is general information only and does not take into account your individual objectives, financial situation or needs and you should consider whether it is appropriate for you. There is no representation or warranty as to the current accuracy of, nor liability for, decisions based on such information. The views expressed in this material are the views of Bruce Apted through the period ended 10 April 2024 and are subject to change based on market and other conditions. This document contains certain statements that may be deemed forward-looking statements. Please note that any such statements are not guarantees of any future performance and actual results or developments may differ materially from those projected. The whole or any part of this work may not be reproduced, copied or transmitted or any of its contents disclosed to third parties without SSGA Australia’s express written consent. 6567959.1.1.ANZ.RTL | Exp Date: 30/04/2025 Livewire gives readers access to information and educational content provided by financial services professionals and companies (“Livewire Contributors”). Livewire does not operate under an Australian financial services licence and relies on the exemption available under section 911A(2)(eb) of the Corporations Act 2001 (Cth) in respect of any advice given. Any advice on this site is general in nature and does not take into consideration your objectives, financial situation or needs. Before making a decision please consider these and any relevant Product Disclosure Statement. Livewire has commercial relationships with some Livewire Contributors.

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Ally Selby
Deputy Managing Editor
Livewire Markets

Ally Selby is the deputy managing editor at Livewire Markets, joining the team at the end of 2020. She loves all things investing, financial literacy and content creation, having previously worked for the likes of Financial Standard, Pedestrian...

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