Nasdaq Composite index followed other leading US market indexes and declined 2.4% or 61.20 points ending at 2,460.08 amid fears that poor German bond auction could signal deepening crisis. Gilead Sciences was one of few gainers that added 2.27% on announcement of acquisition of biotechnology company Pharmasset. Major negative contribution from the index came from Sirius Xm Radio Inc. and Micron Technology that each gave up 6.95% and 6.39% respectively.