S&P 500 Futures stay mildly heavy near the July 31 low.
Policymakers from the Fed, RBA and the ECB have been dovish off-late.
US-China tussle adds to the risk-off mood amid a light calendar and off in Tokyo.
S&P 500 Futures drop to 3,270, down 0.10% on a day, during early Tuesday. In doing s