US STOCKS-Wall St flat after biggest selloff in three months
* Services sector expands at slowest rate since Feb -Markit
* ISM services short of expectations
* Factory orders fall for fourth straight month
* Indexes: Dow up 0.1 pct, S&P up 0.08 pct, Nasdaq off 0.2 pct (Updates to market open, adds data, changes byline)
By Chuck Mikolajczak
NEW YORK, Jan 6 (Reuters) - U.S. stocks were little changed on Tuesday a day after Wall Street suffered its biggest drop since early October and as data showed the pace of momentum in the U.S. economy had slowed.
Financial data firm Markit's final reading on U.S. services sector growth fell in December to 53.3, its lowest since February, from the preliminary 53.6 reading and the 56.2 in November. A separate gauge from the Institute of Supply Management also fell short of expectations while factory orders fell for a fourth straight month.
The main headwinds for equities remain unresolved as crude prices continue to fall and an election in Greece, which may trigger its exit from the euro zone, is some three weeks ahead, said Art Hogan, chief market strategist at Wunderlich Securities in New York. Continuación...