Asian shares were mixed on April 28 as already high valuations discouraged investors from buying equities ahead of a closely-watched US Federal Reserve meeting.
MSCI's broadest index of Asia-Pacific shares outside Japan declined 0.23%. Australian stocks rose 0.55%, but shares in China slipped 0.44%. Stocks in Tokyo edged 0.16% higher.
S&P 500 e-mini stock futures rose 0.09%.
Fed Chairman Jerome Powell is expected to reaffirm that easy monetary policy will remain in place for a prolonged period and dismiss any suggestions of tapering bond purchases.