US equity indexes were mixed in midday trading on Tuesday amid a decline in government bond yields and a sharp sell-off in gold futures.

The Nasdaq Composite was little changed at 23,003.3, after trading down earlier in the session. The S&P 500 rose 0.2% to 6,748.5, from unchanged intraday. The Dow Jones Industrial Average rose 0.7% to 47,032.8. Consumer discretionary and industrials were among the top gainers, while communication services led the decliners.

Gold futures sank 5% to $4,143.61, and silver futures slumped 7.6% to $47.48.

Most US Treasury yields fell, with the 10-year yield down 3.1 basis points to 3.96%, the lowest since April on an intraday basis.

The ICE US Dollar Index rose 0.3% to 98.91.

The CBOE Volatility Index, also known as the fear gauge, slipped 2.7% to 17.73.

Meanwhile, the current US federal government shutdown is the 15th since 1981 and is tied for the second-longest in US history as it entered the 21st consecutive day, USA Today reported. There are no votes scheduled on Capitol Hill on Tuesday.

General Motors (GM) lifted its full-year earnings outlook and lowered expected tariff headwinds, as the automaker's Q3 results topped market estimates.

Coca-Cola (KO) reported better-than-expected fiscal Q3 earnings, while revenue matched the Street's estimates amid pricing and volume gains.