at+a+past+period
131historic volatility — The volatility of the price of an asset during a past period. This can be used by a trader to forecast future volatility of the price. A measure of actual price changes over a specific period of time. NYSE Euronext Glossary …
132TIME — (Roget s Thesaurus II) Index noun age (2), contemporary (2), delay (2), flash, future, instant, lateness, life, morning, now, occasion …
