US Markets

US futures trade mostly flat after record-breaking session

Traders work on the floor of the New York Stock Exchange (NYSE) in New York.
Brendan McDermid | Reuters

U.S. stock index futures pointed to a mostly flat open on Thursday, after markets saw their highest volume day of 2017.

Stocks posted their best day of 2017 yesterday as the Trump trade rally regained momentum. Buoyed by President Donald Trump's speech on Tuesday, which promised tax reform and infrastructure investment, the indexes set fresh record highs.

The Dow gained more than 300 points to close above 21,000. Meanwhile, the S&P 500 broke through 2,300 and briefly rose above 2,400.

Also, Snap priced its IPO at $17 a share, above the $14 to $16 range announced last month.

Ahead of the opening bell, reported quarterly results. AB Inbev also posted results, with fourth-quarter revenue of $14.2 billion and net profit at $400 million.

After the bell, earnings reports from Costco, Autodesk, American Outdoor Brands and Wingstop are expected to hit the tape.

On the data front, we'll have the initial U.S. jobless claims data for the week ending February 25. Last week's reading increased 6,000 to 244,000.

In Europe, the Stoxx 600 index traded flat. European markets also had a good run on Wednesday, getting a boost from Trump's speech.

Meanwhile, oil markets struggled, with Brent crude down 75 cents at $55.61 a barrel, while WTI crude fell 77 cents to $53.06 a barrel.

—CNBC's Patti Domm and Fred Imbert contributed to this report.