The USA500 is currently trading below 6,200 levels.
US stock futures slipped lower Tuesday, continuing the recent cautious trading ahead of the start of the final Fed meeting of the year where a cut of 25 basis points to 4.5% is expected.
The Dow futures contract fell by 0.30%, S&P 500 futures declined by 0.22%, and Nasdaq 100 futures was down by 0.10%.