US benchmark equity indexes are on track to close higher on Tuesday, despite April's US consumer confidence data falling below the Street's projection.

The Dow Jones Industrial Average gained 0.9% to 40,584.21, while the Nasdaq Composite increased 0.6% to 17,464.78. The S&P 500 was up 0.7% to 5,564.52. Energy was the only sector in the red, while materials saw the highest gains.

SBA Communications (SBAC) shares jumped 6.7%, a day after the company reported a Q1 revenue beat. Multiple analysts, including Citigroup, Barclays, Jefferies, BMO Capital, TD Cowen, Raymond James and Goldman Sachs, raised their price targets on SBA's stock.

Zebra Technologies (ZBRA) shares were up 6.2%. The company's Q1 non-GAAP net income and sales exceeded analysts' estimates.

Regeneron Pharmaceuticals (REGN) was the worst performer on the S&P 500, with shares down 7.6%. The company reported lower Q1 adjusted earnings and revenue, below Wall Street's estimates.

The 10-year US Treasury yield dropped 5 basis points to 4.17%, while the two-year rate was down 3.1 basis points to 3.65%.

June West Texas Intermediate crude oil was down 2.8% to $60.29 a barrel.