The S&P 500 rose 46.98 to 4,019.87. The index's latest all-time high is its second in seven days. The Dow Jones Industrial Average gained 171.66 points, or 0.5 per cent, to 33,153.21. The technology-heavy Nasdaq climbed 233.23 points, or 1.8 per cent, to 13,480.11.
Smaller companies continued to notch solid gains. The Russell 2000 index picked up 33.38 points, or 1.5 per cent, to 2,253.90.
The rally capped a holiday-shortened week for the stock market. U.S. stock exchanges will be closed in observance of Good Friday, though bond trading will be open for half a day, closing at noon Eastern.
Companies that would benefit from greater sales of electric vehicles also rose Thursday, a day after President Joe Biden outlined various measures to support their use as part of his massive infrastructure plan. Part of that plan includes installation of thousands of additional charging stations around the country. Electric vehicle charger operator ChargePoint gained 11.8 per cent.
Investors continue to monitor news about how well the U.S. economy is recovering from the coronavirus pandemic, now that millions of vaccines are being administered daily to Americans as well as around the world.
Consumer sentiment has been improving along with construction spending and other measures. The improving economy is prompting investors to shift more money into companies and sectors that will benefit from people getting back to some semblance of a pre-pandemic normal.
The market has been churning while dealing with that shift as beaten-down sectors like airlines and industrial companies start to recover.
"In a way, the churn has reflected health, because more sectors are participating in the moves," said Ross Mayfield, investment strategy analyst at Baird.
While investors are optimistic that things will recover soon, there's still a lot of economic pain to go around.
Airlines have been making gains this year as more people bet on a budding recovery for travel, but the industry still faces turbulence ahead. Discount carrier Frontier Airlines underwhelmed on its first day of public trading. The Denver-based airline opened at $18.61, below the low end of a $19 to $21 price target, and closed at $18.85.
The Labor Department said the number of Americans who filed for unemployment benefits last week rose to 719,000 last week from 658,000 the previous week. That figure was expected to decline. The government will release its monthly jobs report on Friday.
"The employment market is going to be the thing to watch," Mayfield said. "We're kind of in a transition period and at some point we're going to need to see improvement there."
- Associated Press