How to make a diverse portfolio in the stock market?

How to create a diversified stock portfolio?
A diversified portfolio starts with the understanding that you'll have a variety of asset classes. The percentage you invest in each asset class depends on your risk tolerance, time horizon, and goals. A common guideline is a 60/40 split between stocks and bonds, but other model allocations include: Aggressive.The 5% rule of diversification states that one stock should not make up more than 5% of the investor's overall portfolio. Every investor's financial goals will differ as well as their analysis, so this rule may not matter to certain investors and in fact, some investors may want a large concentration in one stock.