New Delhi, March 13 -- The US stock market is experiencing heightened volatility as investors navigate concerns over the economic impact of President Donald Trump's tariff policies on major global economies, including China, India, Europe, and Canada.

The tech-heavy NASDAQ Composite index has crashed over 6 per cent in March so far, following a 4 per cent fall in February. The index rose 1.2 per cent on March 12 after suffering a cumulative loss of 4.18 per cent in the previous two consecutive sessions.

The S&P 500 index has plunged 6 per cent in March so far. In the previous month, the index had declined 1.4 per cent. On March 12, the index closed with a gain of 0.49 per cent after falling 3.4 per cent in the last two sessions.

Both i...