The index's bull-market run is now 3,452 days old and on Wednesday would become the longest such streak in history, at least for some market watchers.
The S&P 500 rose 17 points, or 0.6 per cent, to 2,874, beating the record it set in January by two points. "That potential new high is important", S&P Dow Jones Indices analyst Howard Silverblatt wrote in a research note.
US central bankers discussed raising interest rates soon to counter excessive economic strength but also examined how global trade disputes could batter businesses and households. US stocks were poised for modest losses at the open with Dow futures and the broader S&P 500 futures down 0.2 percent.
Specialist Robert Nelson, right, and trader Gregory Rowe, left, work on the floor of the New York Stock Exchange.
TRADE TENSIONS: Stocks have been buffeted by concerns about mounting trade tensions in recent months between the USA and China, set off by President Donald Trump's tariff policies. "I do expect the markets to go back and forth, but today the swings are not that large", said Peter Lazaroff, co-chief information officer at Plancorp in Saint Louis, Missouri. The Nasdaq Composite (.IXIC) dropped 15.13 points, or 0.19 percent, to 7,844.04 at the opening bell.
The Dow Jones Industrial Average finished down 76.62 points (0.30 per cent) to 25,656.98.
Australia bans Huawei, ZTE from 5G network
Pressure to push the companies out of the USA has only mounted in recent months and now, other countries are following suit. Huawei called the move an "extremely disappointing result for consumers".
Aretha Franklin Left Behind No Will, Fortune Worth Millions
That she died "interstate", or without a will, now raises questions about what will become of her wealth. Then they asked me if I had sheet music and a song prepared.
Pope arrives in Ireland for first visit in 40 years
Pope Francis is the 266th Catholic Pope and current sovereign of the Vatican. "At times in the past we have failed", he said . Marie Collins, who was abused by a priest when she was being treated in hospital at the age of 13, was also among the eight.
The S&P 500 edged down 1 point to 2,861.
The Federal Reserve Bank announced in a policy meeting during the week that it seeks reassurance in the U.S economy and committed to future hikes in rates of consumer goods.
TJX shares climbed 4.7 percent, ending the session at a record closing high, after the retailer topped quarterly comparable-store sales estimates and raised its full-year earnings forecast.
The Dow is up 937.76 points, or 3.8 percent. For the year, it's now up 7 percent.
Advancing issues outnumbered declining ones on the NYSE by a 1.08-to-1 ratio; on Nasdaq, a 1.37-to-1 ratio favored advancers.
Harley-Davidson fell 0.2 per cent after S&P downgraded its credit rating, citing weak sales trends in the USA market.
US crude oil rose again and is up 5.9 per cent this week.