Penny stocks refer to smaller stocks of small companies that trade at lower than 5$ a share. Some penny stocks trade on exchanges, while most are bought and sold through over-the-counter (OTC) transactions. Penny stocks are most often stocks of small companies that trade at a price of a few dollars. Some years ago, all stocks trading below $1 were categorised as penny stocks by the SEC (U.S. Securities and Exchange Commission). However, today the definition encompasses all stocks that trade at lower than $5. For more information:https://usainfolive.com/how-does-investing-and-trading-in-penny-stocks-work/