The term 'DEALT IN STOCKS' refers to the activity of trading stocks. This involves buying and selling stocks on the stock market in order to make a profit. It is a popular form of investment, as it can potentially yield high returns. Traders must be knowledgeable about the stock market and have a good understanding of the risks associated with stock trading. The term 'TRADED' is a synonym for 'DEALT IN STOCKS' and is used to describe the same activity.