U.S. index futures are trading in a listless manner, as traders look ahead to the all-important monthly non-farm payrolls data. ADP's private payrolls survey showed that job gains slowed more than expected. In the eventuality of the number coming in line or softer than expected, the market's reaction will likely be positive if traders focus on its implications for rates. Alternatively, if they perceive it to be an added evidence of economic weakness, a sell-off is likely.

A Federal Reserve official issued ambiguous comments in a public appearance on Friday. The central bank has...