"Aside from a few pullbacks where people take profits, there's still plenty of upside," Randy Frederick, the Austin-based managing director of active trading and derivatives at Charles Schwab, told Bloomberg News.
"Despite the fact that we're hitting records every day, there's no reason to believe this won't continue for a while. The only thing that can derail this type of a move is some sort of really unexpected news event," he said.
Shares of Barnes & Noble jumped, last up 22.7 per cent, after a report Microsoft was considering an offer to buy all of Nook Media's digital assets for US$1 billion.
Shares of Facebook rose 0.9 per cent amid a report it is in advanced talks to buy Israel-based Waze for US$800 million to US$1 billion. Officials at Waze and Facebook declined to comment on the report by business daily Calcalist, Reuters said.
In Europe, the benchmark Stoxx 600 Index edged nearly 0.1 per cent higher. National benchmark stock indexes in London and Germany also gained, up 0.1 per cent and 0.2 per cent respectively. France's CAC 40 shed 0.7 per cent.
The latest economic data from the UK were better than anticipated. UK industrial production increased more than expected in March, gaining 0.7 per cent from the prior month, providing a welcome sign of recovery.
The Bank of England's Monetary Policy Committee today kept its target for bond purchases at 375 billion pounds, and held its key interest rate at a record low 0.5 per cent.
The yen fell to a four-year low against the US dollar, weakening 1.5 per cent to 100.46 per dollar.
"Defence of the 100-yen barrier was weak this time around, so traders took advantage and zoomed ahead," Sebastien Galy, currency strategist at Societe Generale in New York, told Reuters. "We see further upside in dollar/yen now that that barrier is gone."