US stock futures were mostly flat on Tuesday after Wall Street started December with a weak performance, as risk aversion sentiment picked up again.
The S&P 500 index fell 0.53% to 6,812.63 points, the Dow Jones Industrial Average fell 0.90% to 47,289.33 points, while the technology-focused Nasdaq Composite fell 0.38% to 23,275.92 points.
Investors continued to focus on the direction of the Federal Reserve's (Fed) monetary policy with more than 85% of bets expecting a 25 basis point interest rate cut at its meeting next week.
In addition, the Fed is currently in a blackout period.
In other developments, data releases returned to normal following the government shutdown with the focus now on the Personal Consumption Expenditures (PCE) Index for September, the central bank's preferred inflation gauge and expected to be released this week.
Investors are also weighing the possibility of a leadership change at the Fed.
US President Donald Trump announced that he has selected a successor to fill the Fed Chair position to replace Jerome Powell.
However, the identity of the candidate was not disclosed, although White House Economic Advisor Kevin Hassett is seen as a leading candidate.
Meanwhile, most technology stocks fell on concerns about market valuations and continued spending on artificial intelligence (AI).
Conversely, Nvidia shares rose 1.7% after the company announced a partnership with Synopsys and an investment of $2 billion, pushing Synopsys shares up 5%.
