The English word Iberia was adapted from the use of the Ancient Greek word Î¹Î²Î·ÏÎ¯Î± (IbÄria) ibÄrÃ­a By greek geographers under the rule of The Roman empire to refer to what is known today In english as The Iberian. Peninsula at that, time the name did not describe a single political entity or a distinct population of. peoplehe submarine topography of the coastal waters of the Iberian Peninsula has been studied extensively in the process of drilling for oil. Ultimately, the shelf drops into the Bay of Biscay on the north (an abyss), the Iberian abyssal plain at 4,800 m (15,700 ft) on the west and Tagus abyssal plain to the south.
In finance, volatility is the degree of variation of a trading price series over time as measured by the standard deviation of returns. Historic volatility is derived from time series of past market prices. An implied volatility is derived from the market price of a market traded derivative (in particular an option).
In addition, thereâs actually a volatility surface, or different values of implieds for different strike prices and maturities. Thatâs a topic for another day; today letâs just look at how to calculate a simple historical volatility in Excel. 1. Collect your raw data, in the form of a closing price for each time period. Many people do not know, but Yahoo Finance is a good source of daily data that can be downloaded into a spreadsheet.