Little change was registered in shares on both sides of the Atlantic on Tuesday as investors keyed in to tense negotiations in Washington intended to avoid sharp tax increases and spending cuts in the new year. The Stoxx Europe 600 was nearly unchanged, with only a 0.04% gain to 276.24, and the S&P 500 edged down 0.17% to 1,407.05. Here is a continuously updated list of global stock indexes.