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implied volatility of eight OEX (S&P 100) index calls and puts with
average maturity of 30 days based on real-time OEX data. Based on this
index, traders can make decisions on individual index options and
determine whether they are under- or over-valued. Of course there are
formulas used for determining options' premiums based on volatility
and other factors, but most are complex, and in the age of computers it
is rarely necessary to get involved with them manually.
If all this volatility stuff has you to the point of throwing in the towel,
wait. Average investors like you and me can't be expected to go through
complex calculation to figure out expected volatility and premiums.
Fortunately many brokers, realizing this fact, provide their customers
with just that: the Black-Scholes value. The Black-Scholes value is the
theoretical premium of an option based on the Black-Scholes model
(named after its inventors) which takes into account many pieces of
data including the price volatility of the underlying stock. One could
then use the Black-Scholes values as a comparison to the actual
premium values of the same options in order to determine the relative
costliness of those options. Some brokers may also provide another
piece of data known as leverage, which indicates the percentage of loss
or profit made in an option if one were to trade in and out of that
option within one or two days and the stock moves up by one point in
a favorable direction during that time.
There is certainly a bevy of technical analyses for options, and the
data can be found in many ways. Some may come in the form of
software, others may be available to you on the Web, and yet others may
come to you in the form of newsletters you subscribe to. We only
covered an extremely basic technical analysis here. Always keep in mind
that various technical analyses, no matter how valid they claim to be,
are only forecasts. There are no guarantees. I can assure you there are
many of them out there with no real foundation. They exist for one …
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