US stocks rally hard during opening hour of trade

Major US equity indices opened with strong gains on Wednesday after the Fed Chair Janet Yellen, in her prepared remarks for the upcoming congressional testimony, said that the Fed Funds rate won't have to rise much further to get to a neutral policy stance.

Adding to this, a sharp rally in crude oil prices provided an additional boost to the energy sector and further collaborated towards bullish trading sentiment around riskier assets - like equities. 

At the time of writing, the Dow Jones Industrial Average was up by around 150-points to 21,554, while the broader S&P 500 Index added 17-points to 2,442. Meanwhile, tech-heavy Nasdaq Composite climbed over 50-points to 6,243.

It, however, remains to be seen if early up-move is sustainable amid renewed concerns over the Trump administration's alleged connection with Russia after Donald Trump Jr. released a series of email exchanges on Tuesday.