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In the popular 1984 film, The Terminator, current California governor
and former actor Arnold Schwarzenegger plays a cyborg sent back in time to
eliminate the mother of future leader John Connor before he could be born.
Single-minded and highly developed, the robotic killer relentlessly pursues
his intended prey throughout the movie, despite strong resistance from the
hero's supporters, although the good guys eventually win out in the end.
While the story is pure fantasy, some may not realize that in the stock market
there are the equivalent of dangerous man-made automatons lurking in every
corner. Often technology-based, they are powerful, sophisticated, and difficult
to keep under complete control. Yet they are exerting a growing and pervasive
influence on prices. Unfortunately, these potential share-price assassins,
if they were to be suddenly unleashed all at once, represent a Terminator-like
threat to financial markets, especially if conditions are just right.
Like they are now, when the economy is rolling over and share prices have
already begun to correct from historically overvalued and overbought extremes.
First among the potentially destructive creations are exchange-traded funds,
or ETFs, which have become a significant feature of the modern investment landscape.
Far too significant, some would say.
Recent research from Prudential Equity, for instance, suggests that buying
and selling in three small cap ETFs is having a sizeable impact on certain
stocks in the Russell 2000 index. By their reckoning, activity in Barclays
Global Investors' iShares Russell 2000, iShares Russell 2000 Value, and iShares
Russell 2000 Growth index funds accounts for 20% to 40% of turnover in some
smaller issues, according to the Wall Street Journal.
Like index-related arbitrage and other forms of basket-type trading, such
activity is not driven by fundamentals in the traditional, Graham-and-Dodd
sense, but instead reflects the rapidly expanding role of various technical,
arbitrage, thematic, and macro-type investing strategies.
The problem is that while some of this "price insensitive" trading -- not
based, in other words, on stock-specific information or insight -- has been
a boon for equity markets in recent years amid gushing liquidity and a mad
dash for incremental returns, the negative consequences for prices as credit,
economic, and investment cycles turn for the worse could be considerable.
Under the circumstances, index-related selling, for example, could transform
markets in thinly-traded securities that have been unusually liquid and serene
into boggy swamps of illiquidity. This would spur widespread fear and even
a sense of panic, along with a substantial increase in volatility, as hordes
of investors scramble nervously towards the exits.
The broad use of chart-based, trend-following, and momentum-driven trading
and investing strategies is also likely to exacerbate the market's woes in
the face of a sustained downturn. With fear a more powerful motivating force
than greed, the herding behavior that such methods naturally encourage will
likely create a snowball effect that will be hard for anyone -- either those
diving in or those bailing out -- to resist.
Other modern risk-management methods and tactics will also fan the bearish
flames once former long-term bull markets start coming apart at the seams.
These include the widespread use of high-powered statistical and computerized
models that measure and help manage risk exposure using data derived from recent
market behavior. When trading conditions are serene, firms can take on more
risk; if prices start swinging wildly, they must cut back on their exposure,
which often means selling into a falling market.
In the past, corrections and full-fledged bear markets have been accompanied
by significant price gyrations and converging correlations between different
products, sectors, and markets. When that happens in an environment like we
have now, where there are numerous large institutions with complex and highly-leveraged
bets in myriad markets, it creates the potential for a seemingly relentless
death spiral where selling leads to increased volatility, begetting further
selling.
There is also the unsettling and potentially destabilizing fallout from the
growing use of portfolio-based margining and risk management strategies. Aside
from the sudden and unwelcome appearance of gaps between expected and actual
risk of loss, rising illiquidity in some markets will force many participants
to try and sell positions or hedge themselves in others that remain accessible,
causing additional markets to quickly buckle under the pressure.
Another potential source of destructive energy will likely stem from capital
flows linked to gyrations in foreign exchange markets, a far-reaching reassessment
of trade policies in the face of slowing growth around the world, and the unwinding
of global financial imbalances that are already at unsustainable extremes.
Moreover, during uncertain times, history suggests that investors tend to
favor repatriating funds that are invested overseas, regardless of whether
the decision makes sense in the long term.
Finally, a dramatic increase in outstanding derivatives exposure, especially
in recent years, suggests that violent crosswinds associated with speculation,
hedging, and unwinding will wrack the underlying assets. Formerly deep out-of-the-money
and structural long-term derivatives positions that were once thought to require
little oversight will suddenly demand active risk management, as will exposure
taken on in more recent times.
Overall, there are myriad signs that the economic winds are shifting and a
bearish darkness is settling over the investment landscape. It's worth remembering,
of course, that when the share-price Terminator shows up, he won't just be
a character in a movie.
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