ORLANDO, Florida, Oct 17 (Reuters) - Technology has been
the main driving force behind the evolution of financial markets
in recent decades, with the explosion of automated and
algorithmic trading fostering the eye-popping speed, efficiency,
and liquidity that traders and investors enjoy today.
Artificial intelligence is likely to accelerate these
positive changes and revolutionize financial markets along the
way.
But with the benefits come potential dangers, including the
risk that markets will become more vulnerable to frequent bursts
of short-term turbulence and volatility.
Generative AI technologies like ChatGPT may be in their
infancy, but their use across society is mushrooming at an
alarming rate. Generative AI's adoption rate since its mass
launch nearly two years ago is 39.4%, according to a blog post
last month by St. Louis Fed economist Alexander Bick, Vanderbilt
University's Adam Blandin and Harvard's David Deming. That's
twice the adoption rate for the personal computer three years
after its mass introduction, and the internet after two years.
And St. Louis Fed economists and researchers Aakash Kalyani,
Serdar Ozkan, Mickenzie Bass and Mick Dueholm noted in a
separate blog last month that AI-related chatter in company
earnings calls has increased over fivefold since the launch of
ChatGPT in late 2022.
The financial industry is taking part in this trend. The
International Monetary Fund notes that when Large Language
Models first appeared in 2017, only 19% of patent applications
related to algorithmic trading featured AI content. That figure
jumped to more than 50% in 2020 and has remained above that
level ever since. This suggests a "wave of innovation" in
financial markets could be coming.
This could be very good news for the financial industry, as
AI has the potential to take the efficiency of trading,
investment and asset allocation to new heights.
Generative AI's ability to instantaneously analyze vast
quantities of information could enhance market performance by
generating more accurate trading signals, improving risk
management, strengthening trading models, and spotting trends.
AI also has the potential to improve liquidity and help iron
out price distortions in markets with a wide range of
instruments that don't lend themselves to automated trading,
like corporate bonds.
It may even enhance returns. A working paper published in
May by University of Chicago researchers Alex G. Kim, Maximilian
Muhn and Valeri V. Nikolaev found evidence that investors may be
able to deliver higher cumulative returns over time by following
investment signals from simple ChatGPT-based analysis. The
technology's apparent ability to "uncover value in smaller
stocks" is a notable feature.
True, if everyone is using the same technology, any trading
benefit could wane over time, but this would likely only fuel
the drive for greater innovation as investors seek to remain one
step ahead.
CASCADING AND HERDING
Of course, there are serious risks as well.
The IMF highlighted a few of them in its latest Global
Financial Stability Report, following discussions with an
extensive range of stakeholders, including banks, dealers, AI
vendors, asset managers, academics, and market infrastructure
firms.
One of the most pertinent concerns is the potential for a
sudden evaporation of liquidity, and even the cessation of
trading, during periods of high volatility as market
participants scramble to minimize losses. Algorithmic trading
strategies, enhanced by AI, could create a "cascading" effect
triggering negative feedback loops.
The risk of "potential herding and market concentration" is
particularly acute, the IMF notes, if only a handful of
providers are designing the AI programs and Large Language
Models that are enhancing these algos. This is likely the case
right now.
The IMF notes that there is already evidence the U.S. stock
market has seen algo-driven liquidity dry up - albeit only
briefly - during times of high stress. This reflects that fact
that many participants are essentially on the same side of
trades and their models are designed to respond to many
situations in the same way.
In addition, AI is likely to accelerate the shift of
market-making activities to less regulated corners of the
financial universe like hedge funds, proprietary trading firms,
and other non-bank financial intermediaries.
Increased opacity will make it harder for regulators and
authorities to monitor these activities, which, in turn, could
create more opportunities for cyberattacks, market manipulation,
fraud, and online dissemination of disinformation.
But there is no going back to the pre-AI world. Markets have
little option but to accept and embrace technology. This means
investors - and financial regulators - have to accept the
potential risk, disruption and danger AI could bring along with
its many benefits.
(The opinions expressed here are those of the author, a
columnist for Reuters.)