US stocks have jumped amid hopes the partial government shutdown will not seriously harm the economy.

At the closing bell, the Dow Jones Industrial Average rose 61.33 points (0.41 per cent) to 15,191.00.

The broad-based S&P 500 tacked on 13.46 (0.80 per cent) at 1,695.01, while the tech-rich Nasdaq Composite Index added 46.50 (1.23 per cent) at 3,817.98.

Analysts said many investors had already priced in a government shutdown, limiting the hit when one actually occurred at midnight Monday.

Also, many predict a speedy resolution.

“Most people seem to be pretty optimistic that at some point, a deal will be struck and it won’t go on too long,” said William Lynch, director of investments at Hinsdale Associates.

But Mace Blicksilver, director of Marblehead Asset Management, said it would be “very hard” to extend the gains if the shutdown persisted for several days.

Analysts also pointed to a report showing manufacturing unexpectedly picked up in September.

The Institute for Supply Management said its purchasing managers index for manufacturing activity rose to 56.2 per cent last month from 55.7 per cent in August. Analysts had expected it to fall.