Wall Street shares opened mixed but the S&P500 higher, boosted by tech stocks.
The S&P 500 rose 0.10% to 2,170, while Nasdaq added 0.32% to 5,114.
The Dow Jones headed lower however to 18,488, down 0.03%.
Investor focus has turned to a two day policy meet from the Fed, the US Central Bank, where an announcement on interest rates is keenly awaited.
There is much chatter but the general mood is Janet Yellen will not raise rates in the light of aglobal economic worries andp after the UK's Brexit vote, and the uncertainty that brings.
It comes after earlier this year, it looked like there would be a rise before the year was out.
One of the biggest stories came from burger titan McDonald's (NYSE:MCD), whose shares tumbled over 4% to US$122.21 as latest results disappointed the market and underlined that a US turnaround is a way off.
The global group reported a profit of US$1.09 billion in the three months to June 30 compared to $1.2 billion in the same period a year earlier.
Revenue fell 4% to US$6.27bn, which met analysts’ expectations.
It's Fed and earnings city today in the US and shares are seen opening a tad lower as traders are not sure what which way to turn.
It comes as in London, FTSE100 benchmark is up just around 14 points at 6,723.
Investors across the Pond are sitting on the fence as they look towards an interest rate decision from the Fed on Wednesday. The two-day meeting starts today.
It will be the first meeting in the US since the UK voted to leave the European Union on June 23 - the so-called 'Brexit', which has sent analysts and commentators into a spin, as to the implications for global and European finances.
Commentators expect the US Central Bank to keep rates on 'hold'.
On the macro front, the consumer confidence index for July is due later and a report on new home sales.
Yesterday, Wall Street shares closed lower, weighed down by jitters over a busy event-driven week as well as weaker oil prices.
The S&P 500 index ended down 0.3%, or 6.55 at 2,168. The tech heavy Nasdaq lost 2.4 to go to 5,097 and the Dow Jones shed over 77 points at 18,493.
In futures today, the Dow is down six; the S&P500 is two down and the Nasdaq is 0.25 points lower.
A stack of firms are due to post quarterlies before the opening bell, including in-focus coms giant Verizon (NYSE:VZ) after the Yahoo deal, and fast food chain McDonald's (NYSE: MCD).
After markets close, investors will hear from behemoth Apple (NASGAQ:AAPL) and social media giant Twitter (NYSE: TWTR).