U.S. equities closed lower Tuesday, pulling back from record highs, as oil prices pressured energy stocks.
The S&P 500 declined 0.67 percent as the energy sector dropped nearly 1.3 percent to lead decliners. The Dow Jones industrial average hit a record before closing 61 points lower, with Disney contributing the most losses. The Nasdaq composite declined 0.8 percent.
U.S. crude for July delivery fell 2.19 percent to settle at $43.23 a barrel amid signs of rising production. Crude also entered a bear market, trading at least 20 percent below its 52-week high.
"$44 was a big area for crude," said JJ Kinahan, chief market strategist at TD Ameritrade. "Right now, it's having an impact on stocks but it could be bigger. The next major area of support is around $40."
Oil prices are "most definitely" heading to $40 a barrel and will likely dip into the upper $30s, John Kilduff, founding partner at energy hedge fund Again Capital, told CNBC's "Squawk Box."
"Not only do we have a struggle with production and an ineffectual OPEC, non-OPEC production regime, but you have this overhang again that is not clearing, and so that is what this market is reacting to," he said.
investors also kept an eye on Washington as they digested remarks from House Speaker Paul Ryan on tax reform. He said the government is cutting back on regulatory red tape and that changes to the tax code must be permanent. Ryan later spoke with CNBC's "Power Lunch," saying the U.S. can't hit 3 percent growth with tax reform.
"I think Ryan is trying to right the ship here," said Adrian Day, CEO of Adrian Day Asset Management. "The market has become a bit cynical about whether these measures will come into law."
The prospects of tax reform were key in the stock market's postelection run higher, but the Trump administration and the GOP-led Congress have not yet given concrete details on what their joint plan will be.
Treasury Secretary Steven Mnuchin told CNBC earlier on Tuesday he is confident that "massive tax reform" will be passed this year. "We're 100 percent committed to getting it done this year. It's critical to the economy," he said on "Squawk Box."
"If tax reform gets done, that's going to be a big bullish catalyst for the stock market," said Adam Sarhan, CEO of 50 Park Investments. He noted, however, Wall Street is still uncertain about whether these plans will come to fruition anytime soon.
Stocks were coming off a banner day Tuesday, as the Dow and S&P notched intraday and closing records. The tech-heavy Nasdaq, meanwhile, posted its best day since Nov. 7.
"Yesterday was a pivotal day on Wall Street because the bulls showed up and they bought the dip," said 50 Park's Sarhan. "That tells you the underlying strength from the past few years is still there."
In economic new, there were no major data releases, but investors digested remarks from key Federal Reserve officials.
Boston Fed President Eric Rosengren said the current low-rate environment was likely to remain for some time, adding that low rates handicap the central bank's ability to "offset negative shocks."
Meanwhile, Fed Vice Chair Stanley Fischer said that while the U.S. and other nations have taken actions to strengthen their housing finance systems, more needs to be done to prevent a future crisis.
Dallas Fed President Robert Kaplan is scheduled to speak after the close Tuesday.
Treasury yields traded lower, with the benchmark 10-year yield slipping to 2.15 percent and the two-year yield holding near 1.35 percent.
In corporate news, biopharmaceutical firm Parexel announced it will be acquired by Pamplona Capital Management for $4.6 billion, or $88.10 a share. This is the latest M&A deal unveiled in less than a week.
On Monday, EQT announced an agreement to buy Rice Energy for $6.7 billion and Amazon said Friday it's buying Whole Foods for $13.7 billion.
Bill Casey, vice chair for transaction advisory services at EY Americas, said last week the second half of the year could experience more M&A activity, citing data from a survey conducted by the company. "We're seeing 79 percent of the respondents saying they expect to make a deal in the next 12 months, which is kind of unprecedented," he said.
"The dealmaking market has shown resiliency," Casey added. "When you think about all the things that have happened, ... the fundamentals continue to move it forward."
The Dow Jones industrial average fell 61.85 points, or 0.29 percent, to close at 21,467.14, with General Electric leading decliners and Merck outperforming.
The declined 16.43 points, or 0.67 percent, to end at 2,437.03, with energy leading nine sectors lower and health care and utilities the only advancers.
The Nasdaq pulled back 50.98 points, or 0.82 percent, to close at 6,188.03.
About three stocks declined for every advancer at the New York Stock Exchange, with an exchange volume of 812.75 million and a composite volume of 3.403 billion at the close.
On tap this week:
Earnings: Oracle, Winnebago, CarMax
10:00 a.m. Existing home sales
8:30 a.m. Initial claims
9:00 a.m. FHFA home prices
10:00 a.m. Fed Gov. Jay Powell at Senate Banking
Earnings: Blackberry, Finish Line
9:45 a.m. Manufacturing PMI
10:00 a.m. New home sales
10:15 a.m. St. Louis Fed President James Bullard
12:40 p.m. Cleveland Fed President Loretta Mester
2:15 p.m. Fed Gov. Powell