Stock options offer window into bank performance
Can bank stock options tell us about the future of the economy? The answer, based on recent research from “Financial Sector Tail Risk and Real Economic Activity: Evidence from the Option Market,” is ‘yes’, writes Professor Michael Newmann of the School of Economics and Finance at Queen Mary, University of London.
The financial sector is different from other sectors in the economy in that failure of financial institutions can induce significant negative externalities. Banks and financial firms more broadly provide services that are vital to the functioning of the real economy.
The health of the financial sector and its related ability to carry out these tasks therefore likely plays an important role in determining real economic activity. Consequently, high financial sector tail risk today should be related to low real economic activity tomorrow.
While tail risk—or the risk of an asset or portfolio of assets moving extraordinarily far away from its current price—can be either positive or negative, most practitioners are concerned with negative tail risk. Negative tail risk, in particular, can affect the role of the banking sector in the economy as it signals that banks are in trouble.
Option markets are an ideal venue for learning about the dynamics and predictive power of financial sector tail risk for several reasons. At any point in time the options can offer insights into market participants’ expectations on how good or bad things could be in the future. With puts basically acting as ‘insurance’ against a ‘bad’ or negative future state of the world, the bank stock options market offers information on what may be happening in the financial sector going forward at any given time.
Moreover,
put options with strike prices far away from the current level of the
underlying asset price (DOTM put options) can be viewed as explicit bets on, or
insurance against, lower tail outcomes and consequently can track the market’s
assessment of the likelihood and severity of future tail events. By looking at
bank stock put options, advisors and others can thus gain insights, not just
into the options market itself but also links between financial sector tail
risks and the real economy.
With
the ‘telling’ nature of the options market, bank stock options should be
informative about the likelihood of future severe disruptions in the financial
sector. When the banking sector is
likely to face distress in the future, banks will not lend as freely, in turn,
adversely affecting economic activity and growth going forward. It follows that
high option market-implied financial sector tail risk should be able to
forecast low future economic activity.
The
study’s results confirm that financial sector tail risk estimated from prices
of traded bank stock options predicts future real economic activity. This
finding is illustrated in Figure 1. The figure plots the level of the National
Activity Index published by the Federal Reserve Bank of Chicago in one month against
the option market implied level of financial sector tail risk in the previous
month over the period 1996 to 2012.
One
can see a clear negative relationship as indicated by the downward sloping
trend line. That is, high option-implied financial sector tail risk today tends
to be followed by low economic activity tomorrow. The paper shows that a
similar predictive relationship also holds for various alternative indicators
of real economic activity such as industrial production growth and changes in
non-farm payroll employment. The assertions
from the paper are backed up using equity volatility surface data obtained from
the IvyDB US Options Database from OptionMetrics, containing option prices and
smoothed volatility surfaces for all US options starting from 1996.
These results highlight the attractiveness of option markets in the context of forecasting real economic activity and monitoring financial sector stress.
Option
prices are readily available at any point in time and consequently real-time
measurement of aggregate financial sector tail risk based on them is
straightforward. This is strikingly different if compared to tail risk
indicators estimated on historical data. Tail risk outcomes are naturally rare
so assessing their likelihood based on historical tail event realisations is
imprecise. By nature, options are
intrinsically forward-looking instruments; their value explicitly depends on
the payoff they may generate in the future. Therefore, options may anticipate
changes in the likelihood of tail events much quicker and more accurately than
backward-looking tail risk indicators.
Option
markets provide real-time aggregate financial sector tail risk information that
is related to future economic performance. As such, investors, advisors, and policymakers
should keep a close eye on the option market.
Found this useful?
Take a complimentary trial of the FOW Marketing Intelligence Platform – the comprehensive source of news and analysis across the buy- and sell- side.
Gain access to:
- A single source of in-depth news, insight and analysis across Asset Management, Securities Finance, Custody, Fund Services and Derivatives
- Our interactive database, optimized to enable you to summarise data and build graphs outlining market activity
- Exclusive whitepapers, supplements and industry analysis curated and published by Futures & Options World
- Breaking news, daily and weekly alerts on the markets most relevant to you