The ratio of the change in price of an option to the change in price of the underlying asset. Also called the hedge ratio. Applies to derivative products. For a call option on a stock, a delta of 0.50 means that for every $1.00 that the stock goes up, the option price rises by $0.50.elta. The change in the price of an option that results from a one-point change in the price of the underlying stock. For example, a delta of 0.5 indicates that the option will rise in price by 1 / 2 point (50Â¢) for each 1-point ($1) rise in the price of the underlying stock.
One of the main causes of the extent of World War I was the  alliances in Europe at the time, which brought many nations who had  no stake in the original conflict into the â¦war. Another cause of  World War I was imperialism, which caused tension between European  nations who were fighting over land to colonize.
While there was a chain of events that directly led to the fighting, the actual root causes are much deeper and part of continued debate and discussion. This list is an overview of the most popular reasons that are cited as the root causes of World War 1.mperialism is when a country increases their power and wealth by bringing additional territories under their control. Before World War 1, Africa and parts of Asia were points of contention amongst the European countries. This was especially true because of the raw materials these areas could provide.