Shares of HCL Technologies slipped 1.5% in early deals ahead of the IT firm's Q1 earnings set to be announced today. The stock fell 1.55% to Rs 1611.90 on BSE. Market cap of the firm stood at Rs 4.39 lakh crore. Major domestic IT firms including HCL Technologies derive a majority of their revenue from the US and European regions. Macroeconomic uncertainties, including Donald Trump’s tariffs and rising trade tensions ar likely to affect earnings of these  firms.