By TheStreet Staff What Is a Bottom in the Stock Market? In investing, a bottom refers to the lowest price a security (or an entire market, as measured by a benchmark index) trades at over a particular period of time. This interval could be a day, a week, a year, or 10 years, but most discussions of the term focus on periods of a year or more. If you were looking at a line graph depicting a security’s price over time, the bottom would be the trough, or the lowest point on the line. When it comes to stocks, which typically outperform other asset classes like bonds over the long term, the idea o…