Options Glossary

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Whipsaw

Losing money on both sides of a price swing.

Wide Opening

Refers to an unusually large spread between the bid and asked prices.

Wilshire 5000 Equity Index

A market index of approximately 6,500 U.S. based equities traded on the American Stock Exchange, the New York Stock Exchange and the NASDAQ stock market.

Witching Day

A day on which two or more classes of options and futures expire.

Writer

An individual who sells an option.