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The M&A market is expected to heat up this year. Here are 11 noteworthy merger-and-acquisition stories we're following.

A weak ADP payrolls print took the life out of stocks Wednesday, but continued stimulus talks nudged a few major indices into the black by day's end.

A stimulus package brought by a group of nonpartisan senators Tuesday sparked stocks, which kept most of their gains even after the plan was shot down…

The Nasdaq cleared its September highs Wednesday despite a second straight week of rising unemployment claims that slowed the other major indices.

The Nasdaq reversed course from its quickest-ever correction with sizable gains Wednesday, led by the usual suspects.