Investors are highly cautious on the growth outlook of the Indian IT firms, as they depend on US for a large portion of revenue. Global headwinds continue to drag the market sentiment, indicating that volatility is here to stay for the near term. Infosys, Wipro, Mphasis, Coforge, L&T Technology Services and Tech Mahindra were among the top losers on the Nifty IT index, cracking up to 3 percent. The Dow Jones Industrial Average fell 2.1 percent, the S&P 500 lost 2.7 percent and the Nasdaq Composite dropped 4 percent on Thursday. The sell-off has wiped out $4 trillion from the S-P 500’s peak last month, when Wall Street was cheering much of Trump’s agenda. A barrage of new Trump policies has increased uncertainty for businesses, consumers and investors, notably back-and-forth tariff moves against major trading partners like Canada, Mexico and China. \”Uncertainty unleashed by Trump tariffs is reigning supreme now and this is weighing on markets. Consequently trading volumes have dipped sharply,\” said V K Vijayakumar, Chief Investment Strategist, Geojit Financial Services.