World sharemarkets rose at the start of the trading week as investors expressed optimism about European Central Bank President Mario Draghi's plan to address the eurozone's sovereign-debt crisis
On Wall Street, the Dow Jones Industrial Average advanced 21.34 points, or 0.2%, to 13,117.51 at the close (8am NZ time).
The gains built on Friday's rally, when the Dow climbed more than 200 points after July's US jobs report came in better than expected.
The S&P 500 added 0.2%, to 1394.23, with nine of its 10 sectors gaining ground. The Nasdaq Composite was up 0.7% at 2989.91.
Shares of Knight Capital plunged 22.8% after the struggling broker said it sold $US400 million in convertible preferred stock to bolster its capital position.
The capital injection from other trading companies allowed Knight to cover its $US440 million loss.
A software glitch related to the introduction of a new trading program of the New York Stock Exchange led Knight to holding at least $US4.5 billion worth of securities it hadn't planned to buy.
Other markets: Europe, Asia up
The Stoxx Europe 600 added 0.5% to 266.80, a more than four-month high.
The UK’s FTSE 100 ended 0.4% higher at 5808.77, Germany’s DAX 30 rose 0.8% to 6918.72 and the French CAC 40 advanced 0.8% to 3401.56.
Spain’s IBEX 35 index rallied 4.4% to 7053.60, after an earlier tech glitch kept it out of commission for much of the session.
Asian markets were broadly higher, with Japan's Nikkei Stock Average rising 2% to 8726.29.
Australia’s S&P ASX 200 gained 1.2% to 4272.60.
Hong Kong's Hang Seng Index traded above the 20,000 mark for the first time since May but eased at the to close 1.7% higher at 19,998.72.
The Shanghai Composite was up 1% to 2154.92.
Commodities: Oil up, gold down
Crude-oil futures for September delivery closed 71USc or 0.5% higher at $US92.12 a barrel.
Gold futures eased slightly. The most actively traded contract, for December delivery, traded down 30USc at $US1609 an ounce in New York.
Currencies: Euro’s rally stalls
Last week’s euro rebound stalled as it traded at $US1.2407 from $US1.2387 late on Friday, when the euro gained 2USc.
The US dollar was at ¥78.14 compared with ¥78.47, while the euro was at ¥96.970 compared with ¥97.20.
The pound traded at $US1.5620 from $US1.5644, while the dollar bought 0.9678 Swiss franc from 0.9702 franc.