@Aqa:
I truly like to have a well diversified portfolio. But one should not over-do the number of stocks, otherwise one might as well just by the index. As a retail investor, a portfolio of 10 to 20 stocks, across various sectors, industries and countries, is less risky than just owning one or two stocks. All my stocks have the same weightage of the total portfolio. Good luck! Thanks @Tiger_comments @icycrystal