Source: Sharecast
As of 1245 GMT, Dow Jones futures were down 0.07%, while S&P 500 and Nasdaq-100 futures had the indices opening 0.12% and 0.11% weaker, respectively.
The Dow Jones closed 304.14 points higher on Monday as last week's post-election rally spilt over into the new week.
However, stock futures were slightly lower in early trading, pulling back from record levels recorded after it became clear that Donald Trump's re-election victory was set to be clear-cut and straightforward one.
On the macro front, the National Federation of Independent Business' small business optimism index increased to 93.7 in October, up from 91.5 in September and beating forecasts of 91.9 with the highest reading in three months.
Elsewhere, speeches from Federal Reserve governor Christoper Waller, Richmond Fed boss Tom Barkin and Minneapolis Fed president Neel Kashkari at 1500 GMT, 1515 GMT and 1900 GMT, respectively, will also draw an amount of investor attention.
In the corporate space, Home Depot and Shopify were both slated to report earnings on Tuesday.
Reporting by Iain Gilbert at Sharecast.com