U.S. stock index futures pointed to a higher open on Tuesday in low-volume trade ahead of a slew of earnings.
There are no major U.S. economic data releases scheduled for Tuesday.
In Europe, the pan-European Stoxx-600 index was around 0.35 percent higher on Tuesday morning. In Asia, the Shanghai Composite in China closed 0.5 percent lower, while the Nikkei in Japan closed 0.53 percent higher.
Oil prices were fairly muted as investors appeared to be unwinding positions in advance of the holiday season and in preparation for a new calendar year.