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Options Risk
Management
There are more kinds of risk than there are investments, since
every instrument carries several kinds. But risk isn't
inherently bad. Without it there'd be fewer opportunities for
profit.
The fundamental risk, of course, is price uncertainty. No one
knows for sure whether GOOG (the symbol for Google stock) will
be higher tomorrow or lower.
Options, like futures or bonds, carry an additional risk - at
some point, from a day to several months or years, they expire.
On or before that date, the holder has to decide whether to
sell the contract, exercise the option to buy or sell the
underlying asset, or simply let the option expire.
Each of these choices carries implications for gain or loss and
all are uncertain (to some degree) with respect to the size of
that outcome.
Complicating the price and timing risks of options is their
volatility risk. It's uncertain, on any given day, how much the
price will vary and how rapidly.
Ironically, options themselves are forms of risk management.
Since the underlying asset, say a stock or bond, has risks as
an investment buying options allows holders to compensate for
them.
Leverage is one form in which options help to manage risk.
Leverage is the ability to control more than you own. Suppose
you want to purchase a 100 shares of Google. At the current
market price that's an outlay of around $40,000 (excluding
commission). That's a hefty sum for the average
investor.
But you can control 100 shares of GOOG without owning them for
less than 1/10th the cost - currently around $2800 - the price
of one option. (One options contract typically is written on
100 shares.)
How is that a form of risk management? The reason is there's
another kind of risk: principal risk. I.e the risk of losing
(all or part of) your investment. (Actually this is a form of
price risk.)
Purchase a 100 shares of GOOG and you stand to lose $40,000 in
the (very unlikely) case that Google goes bust. (Unlikely, but
not impossible. Rapid shifts in technology or other factors
have tanked more than one high-tech stock. 3Com and Cisco are
two good examples. Though not zero, their shares experienced
considerable declines in the past few years.)
Purchase one option instead and your principal risk is limited
to the - painful if lost, but much smaller - amount of the
premium: $2800, the cost of the options. (Excluding
commissions.)
Of course, the example is a little unfair since the odds of
Google stock going to zero is itself close to zero. But there
are companies for whom the odds are not so favorable and the
principle (pun intended) is the same.
So, how do you manage these risks? Simple. Simple, but not
easy.
Start by identifying all the known risk factors and quantifying
them. (Simple in that identifying and measuring them is
straightforward, but minimizing them is anything but easy.)
Fortunately, there are several different software product
offerings that will help you do that. It's no longer necessary
to be a finance and mathematics wizard. The software
incorporates the algorithms used by experts to measure various
factors - such as delta, theta, vega, volatility and others -
that can affect your potential profit or
loss.
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