S&P 500 Index extends rebound, opens sharply higher above 4,400

• Wall Street's main indexes are posting strong gains.
• All major sectors of the S&P 500 trade in the positive territory.

After closing in the positive territory on Wednesday, major equity indexes in the US opened decisively higher as risk flows continue to dominate financial markets. Reflecting the upbeat market mood, the CBOE Volatility Index is down 6% at 17.50.

As of writing, the S&P 500 Index was rising 1% at 4,405, the Dow Jones Industrial Average was up 1.05% at 34,726 and the Nasdaq Composite was gaining 1.1% at 14,732.

All major sectors of the S&P 500 push higher after the opening bell with the Healthcare Index leading the rally with a daily gain of 1.65%. On the flip side, the Financials Index is up only 0.4% as US Treasury bond yields remain on the back foot.

S&P 500 chart (daily)