An indifference curve is a graph that shows a combination of two goods that give a consumer equal satisfaction and making the consumer indifferent to which of these two goods to choose.

Insider trading is the purchasing or selling of a publicly traded stock by someone who has non-public, information about the stock.

Insider is a director or senior management officer of a company, as well as any person or entity that owns more than 10% of a company's voting shares. 

Interest rate floor is a previously agreed rate in the lower range of rates associated with a floating rate loan product.

An Investment Vehicle is a product used by investors with the intent for a profit. They can be both – low risk and extremely high risk.

Inconvertible currency is a name given to the currency the conversion of which into another currency is forbidden. There can be several reason for that like different forbidding regulations, physical barriers or political sanctions.

Inelastic is a term that is used to describe a constant demand for service of goods. That means that when the price for a service or goods goes up the demand stays the same, just like when the price for them goes down.

The Ichimoku cloud is a gathering of technical indicators that shows support level and resistance level, as well as momentum and direction of the trend. The Cloud is taking multiple averages and projects them on the chart.

Inside quote is the name for the best bidding and asking price for a security among the market makers.

Inside day is a type of candlestick pattern that appears after a security experienced a daily price range equal to that of the day before.