A pennysheet was a piece of paper equivalent to a penny.
A pennysheet is a term used to describe a stock that trades for less than $1 per share. These stocks are typically found on over-the-counter markets or on pink sheets, which are networks of dealers who buy and sell stocks that do not meet the requirements to be listed on a major exchange. Trading penny stocks can be highly speculative and risky due to their low price and volatility.