Swedish krona or SEK in the GBP / SEK currency pair takes the position of the quoted currency. The base currency in this tool is the familiar English franc, a stable and liquid unit that has won its place in the market long ago. It holds a much larger market share (15%), than the krona (2.8). This pair can be called a cross-rate. It has a very high priority for world traders for many reasons. The first one was already named above - the popularity and relevance of the elements. Comparison of the pair with the EUR / USD currency pair will help in assessing its profitability.