Stock Index Futures Extend Gains

March SP500 is trading at 2309.75, up 5.50. March Nasdaq 100 is trading at 5216.25, up 4.00. March Russell 2000 is trading at 1383.4, up 6.4 March Dow Industrial futures are trading at 20187, up 51. Stock index futures have extended the session gains, trading is steady.