``Today, markets are likely to open modestly higher in line with Asian peers. 5,550 and 5,350 continue to be important resistance and support levels for the Nifty. Broader market outperformance is likely to continue. Economic data to be released today include weekly inflation data from India, PMI and Retail sales data from Euro-zone and non-farm payroll, unemployment rate and ISM non-manufacturing composite data from the US,`` notes brokerage house Anagram.
5,550 continues to be important resistance: