a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body; vitamin E, tocopherol, E
n. The symbol for the base of the natural logarithm 2.71828. Introduced by Leonhard Euler in the mid-eighteenth century, e is a fundamental mathematical constant used in calculus, science, engineering, and programming languages, as in logarithmic and exponential functions in C and Basic.
Bloomberg Financial Glossary
Fifth letter of a Nasdaq stock symbol specifying that an issue has not met the reporting date for the company's SEC regulatory filing requirements.
Investopedia Financial Terms
E
A Nasdaq stock symbol specifying that the stock has been delinquent in required filings with the SEC.
Investopedia Says:
Nasdaq-listed securities have four or five characters. If a fifth letter appears, it identifies the issue as other than a single issue of common stock or capital stock.