The markets were little changed on Tuesday, with the Nasdaq Composite edging lower after eking out another record high, as the Federal Reserve's meeting kicks off.
While the Fed is widely expected to stand pat on interest rates, investors are awaiting the central bank's statement, due on Wednesday, for clues regarding the future path of rate hikes.
"While no one expects any changes to policy, the 500-word statement will probably provide some direction to the dollar," said Hussein Sayed, chief market strategist at FXTM.
"'Will the Fed acknowledge a slowdown in growth and thus send rate hike expectations lower for 2017?' The Fed's statement should be answering these questions, and based on that, traders will act."
Strong corporate earnings for the first quarter have largely outweighed concerns about patches of weak economic data, including a report last week that showed the U.S. economy grew at its slowest pace in three years in the first quarter.
At 9:50 a.m. ET (1350 GMT) the Dow Jones Industrial Average .DJI was up 5.59 points, or 0.03 percent, at 20,919.05. The S&P 500 .SPX was down 1.45 points, or 0.06 percent, at 2,386.88 and the Nasdaq Composite .IXIC was down 6.52 points, or 0.11 percent, at 6,085.09.
Ten of the 11 major S&P 500 sectors were higher, with the industrials index's .SPLRCI 0.34 percent rise leading the advancers.
Investors are bracing for another heavy week of corporate reports to see if quarterly earnings will keep on exceeding expectations.
Overall, profits at S&P 500 companies are estimated to have risen 13.6% in the first quarter, the most since 2011, according to Thomson Reuters I/B/E/S.
Shares of Apple (AAPL.O) rose as much as 0.8% to $147.69, hitting a record high for the second straight day. The stock was the biggest boost on the S&P and Nasdaq. The iPhone maker is due to report results after the close of market.
Dow component Pfizer (PFE.N) was down 1.2% at $33.36 after the drugmaker's quarterly revenue missed estimates.
MasterCard (MA.N) rose 2.1 percent to $118.73 as the world's second-largest payments network's quarterly profit rose.
Advanced Micro Devices (AMD.O) tumbled 16.2% to $11.45 after the chipmaker's second-quarter gross margins forecast raised some concerns.
Coach (COH.N) rose 6.2% to $41.12 after the handbag maker reported a higher-than-expected quarterly profit.
Declining issues outnumbered advancers on the NYSE by 1,321 to 1,263. On the Nasdaq, 1,300 issues fell and 1,052 advanced.
The S&P 500 index showed 30 new 52-week highs and four new lows, while the Nasdaq recorded 91 new highs and 19 new lows.