Wall St up, investors brace for elections

Wall Street ended sharply higher as investors focused on the United States midterm elections that will determine control of Congress, while shares of Meta Platforms jumped on a report of job cuts at the Facebook parent.

Republicans are favoured to win a majority in the House of Representatives in the elections, with the Senate rated a toss-up by nonpartisan forecasters. Republicans could use a majority in either chamber to hinder Democratic President Joe Biden's agenda.

"The likelihood that the Republicans take the House or the Senate is pretty high, therefore guaranteeing some form of gridlock over the next couple of years," Baird investment strategy analyst Ross Mayfield said.

"That would probably take tax hikes off the table and any sort of big spending potentially perceived as inflationary off the table."

Meta Platforms Inc jumped more than six per cent following a report the company plans to begin large-scale lay offs this week. The stock has slumped more than 70 per cent so far this year.

Recently beaten-down shares of Microsoft and Google-parent Alphabet each rallied more than two per cent and contributed heavily to the S&P 500's gain for the session.

Focus this week will also be on US consumer prices data for October, due out on Thursday, for clues about how much the US Federal Reserve's rapid interest rate hikes are helping cool down the economy.

Four Fed policymakers on Friday indicated they would consider a smaller rate hike at their next policy meeting, despite new data showing another month of robust job gains and only small signs of progress in lowering inflation.

Traders are divided about whether the Fed will raise interest rates by 50 basis points or 75 basis points at the US central bank's meeting in December.

"All else equal, whether the terminal rate sits at 4.5 per cent, 5.0 per cent or beyond, monetary policy is poised to have a negative effect on the economy heading into 2023," Glenmede's investment strategists wrote in a note on Monday.

Unofficially, the S&P 500 climbed 0.96 per cent to end the session at 3806.90 points.

The Nasdaq gained 0.85 per cent to 10,564.52 points, while the Dow Jones Industrial Average rose 1.31 per cent to 32,827.00 points.

Of the 11 S&P 500 sector indexes, eight rose, led by communication services which was up 1.83 per cent, followed by a 1.73 per cent gain in energy.

All the three major US indexes have slumped this year, with the tech-heavy Nasdaq down 33 per cent due to worries that aggressive monetary policy tightening could cripple the US economy.

Digital World Acquisition Corp surged 66 per cent after former US President Donald Trump hinted at another White House bid. The blank-check firm has agreed to take social-media startup Trump Media & Technology Group Corp public.

Walgreens Boots Alliance Inc gained 4.1 per cent after VillageMD, a primary care provider backed by the pharmacy chain, said it will acquire Summit Health in a deal valued at nearly $US9 billion ($A14 billion).

Advancing issues outnumbered falling ones within the S&P 500 by a 2.8-to-one ratio.

The S&P 500 posted 18 new highs and 15 new lows; the Nasdaq recorded 93 new highs and 221 new lows.

Volume on US exchanges was relatively light, with 10.5 billion shares traded, compared to an average of 11.8 billion shares over the previous 20 sessions.