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by Peter Fortune
July/August 1995
Trading volume and open interest in options and futures
contracts on stock indices, equities, and interest rate
instruments traded on world exchanges have experienced
remarkable growth. However, this growth has been accompanied
by controversy about the proper role of financial derivatives
and the potential for abuse. Prominent attention has
been given to losses by major corporations, broker-related
short-term mutual funds, and municipal agencies.
The public debate about "derivatives" has
promoted the impression that the heart of the problem
has been a proliferation of brand new ways of making
bets on future stock prices, interest rates, and exchange
rates. The positive functions of derivatives as means
of risk management are almost forgotten.
This article shows that exchange-traded options are
really nothing new. Rather, they are repackages of the
same traditional financial instruments. The article
describes the practical application of the equivalence
between exchange-traded options and a traditional portfolio
of stocks and bonds. This is done by demonstrating the
strategies of dynamic hedging and of portfolio insurance.
The first uses options to hedge against stock price
movements, while the second uses stocks and bonds to
create "synthetic" options.
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