Thursday 7 February 2019 11:49 am CFA Institute Talk

What do you want to know about big data & AI in investment management?

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These are articles written by professionals for investment professionals. They are contributions from external subject matter experts who do not work for CFA Institute, but may be a CFA charterholder as well as a member of a CFA Society. All are experts in their field and strive to deliver useful insights that help investment professionals make better decisions.

These are articles written by professionals for investment professionals. They are contributions from external subject matter experts who do not work for CFA Institute, but may be a CFA charterholder as well as a member of a CFA Society. All are experts in their field and strive to deliver useful insights that help investment professionals make better decisions.

A technological advance can impact — even transform — the global economy let alone a particular sector.

The steam engine in the first industrial revolution, electricity in the second, and internet technology in the third fundamentally changed human history. Today, big data and artificial intelligence (AI) have the same transformative potential.

When it comes to big data and AI in investment management, some people anticipate a rosy future with various new sources of alpha. Others worry about the jobs that might be lost to machines through process automation.


Regarding the new sources of alpha, developments in this fourth industrial revolution raise a series of critical questions. How investment professionals address them will go a long way in determining who will successfully adapt and who might be rendered obsolete.

Frequently Asked Questions (FAQs)

1. By using big data and AI, can investment managers achieve competitive advantages in securities selection and asset allocation?

It depends on the investment time horizon. With short-term high-frequency trading (HFT), for instance, investment opportunities — the short-term noise rather than economic added value or mis-pricing due to structured behavioural tendencies — could be arbitraged away. On the contrary, long-term investments, such as environmental, social, and governance (ESG) factors, engagement funds, and private equity funds will still require interactions with company management. Additionally, each potential investment that is not backed by big data that AI can sift through will require investors to conduct a more granular and hands-on analysis. In this sense, there could be opportunities in public markets over a mid-term investment horizon.*

2. If AI is the best tool to scour big data for sources of competitive advantage, will these advantages be limited in scale and sustainability? Or will they be larger and more enduring ?

Mid-term investments in public markets are crowded with investment managers. The steep cost of big data acquisition and AI implementation may mean only larger managers and niche players will be able to capitalise on the opportunities these technologies present. If only a few large managers dominate the space, their advantage could endure over the long term. But the big data will have to be high quality if it is to yield long-lasting insights: No matter how sophisticated a firm’s AI techniques, they cannot extract actionable investment opportunities from big garbage. Moreover, looking back through history, many market crashes have resulted from overcrowding and glitches in mechanical investment approaches — Black Monday in 1987 and the quant liquidity crunch in August 2007, for example. Such outcomes may be inevitable, even for big data and AI.

3. Are big data and AI incremental steps forward or quantum leaps?

Both asset managers and asset owners believe in big data and AI. But machines cannot persuade humans. Nor do they owe them a fiduciary duty. Moreover our investments have to be accounted for and intuitively understandable. Machines cannot communicate the economic and behavioural rationale of a particular investment strategy. That will take time, perhaps a generation or more. Thus, big data and AI are likely an incremental step forward rather than a quantum leap.


It is critical to avoid excessive expectations and rampant speculation and focus instead on how these tools can be applied appropriately. It is not the best-performing investment manager that survives or the most knowledgeable. It is the one who is most adaptable to change.

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All posts are the opinion of the author. As such, they should not be construed as investment advice, nor do the opinions expressed necessarily reflect the views of CFA Institute or the author’s employer.

 

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