• While markets have decided the crisis is over we think we’re not returning to the levels of incomes that we enjoyed before the pandemic hit. Here's why

Why there is still a role for active investing


Why there is still a role for active investing

Nassim Taleb’s book, “The Black Swan” was described by The Sunday Times as one of the 12 most influential books since World War II. His most recent work, “Skin in the Game” is just as insightful, and includes strong arguments that support the value of active over passive investing.

In his latest work, Taleb focuses on asymmetries and sharing of risk and reward. He highlights that the division of these fundamental tenants of markets (risk/reward) are often imbalanced between participants, creating non linearities and divergences which can produce mind boggling order of magnitude effects. At Montgomery Global we are constantly on the lookout for these types of hidden asymmetries to take advantage of for our investors.

An interesting framework explored by Taleb is the “minority rule,” which he calls the “mother of all asymmetries.”  It presents the notion that the world (and the financial market) is not driven by majority consensus, but by small, stubborn minorities. For example, he looks at halal meat in society and notes that only 3-4 per cent of the population care whether meat is halal or not (usually for religious reasons). However, when looking at the presence of halal meat in these same markets, it can be as high as around 70 per cent. So why does a 3-4 per cent minority cause 70 per cent of the population to do things differently rather being forced to change themselves? The reason is a stubborn minority (in this case driven by religion), can impose its will on a relatively disinterested majority (unlikely to care or notice if they are eating Halal or not).

Extending this concept to financial markets, Taleb notes that price movements are NOT the sum of market participants, but the activity reflected by the desire of the most motivated buyer and most motivated seller. For instance, in January 2008 the value of equity markets was approximately $30 trillion, however a single sell-order worth $50 billion, less than 0.2 per cent of total market value triggered a ~$3 trillion (~10 per cent) drop. The “sell order” came at the directive of senior management at the French bank Societe Generale, once they discovered unauthorised trading positions established by a rogue trader (Jérôme Kerviel) and hence became the “stubborn minority.”

The idea is of particular interest in today’s market as we consider whether stocks are moving on genuine fundamentals or projecting trading swings from what can be a relatively small part of the financial market (e.g. central banks, ETF flows, risk parity funds, algorithmic trading, quantitative strategies, etc.).

Extending this more generally, as the role of passive investing becomes more widespread, perhaps we should be asking whether passive capital is becoming the disinterested majority? Under this framework, passive funds would be much more open to an asymmetric shock (both on the way up and down) relative to active portfolios which would represent the stubborn minority and potential catalyst for the swing.


Amit joined MGIM in April 2018 as a Senior Research Analyst after spending seven years as a credit analyst at Credit Agricole and Citigroup, based in New York. Prior to this, Amit was an investment banker with Citigroup for five years in New York and Sydney, focusing on Media and Telecoms; Metals and Mining; and Consumer Products.

This post was contributed by a representative of Montgomery Investment Management Pty Limited (AFSL No. 354564). The principal purpose of this post is to provide factual information and not provide financial product advice. Additionally, the information provided is not intended to provide any recommendation or opinion about any financial product. Any commentary and statements of opinion however may contain general advice only that is prepared without taking into account your personal objectives, financial circumstances or needs. Because of this, before acting on any of the information provided, you should always consider its appropriateness in light of your personal objectives, financial circumstances and needs and should consider seeking independent advice from a financial advisor if necessary before making any decisions. This post specifically excludes personal advice.

Why every investor should read Roger’s book VALUE.ABLE


find out more


Post your comments