New Delhi, May 20 -- The US stock futures indicated a mildly positive start on Wednesday, 20 May, after remaining under pressure for the past three straight sessions, weighed down by rising bond yields and a lack of progress in negotiations between the US and Iran, which continued to keep market sentiment cautious.

Nasdaq 100 futures rose 0.8%, while S&P 500 futures gained 0.4%. Futures tied to the Dow Jones Industrial Average were also marginally higher by 0.2%.

In the previous session, all three major indices ended lower amid a sharp retreat in technology stocks and a spike in bond yields. The 30-year Treasury yield climbed one basis point on Wednesday to 5.19%, marking its highest level in nearly 19 years.

Meanwhile, the 10-year Tre...