Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Variance is a measurement of the spread between numbers in a data set. Investors use the variance equation to evaluate a ...

Buying up-variance: If the underlying price is expected to rise or stay above a given level then buying an up-variance swap (with a 95% trigger for example) is a cheaper alternative to a long variance ...

Equity market volatility in advanced economies shot through the roof when the credit and liquidity crisis kicked in last year and has been high ever since. It might have been expected then that the ...