An investor who intends to hold a security, portfolio, or investment strategy for a term of longer than one year. The exact number of years varies according to the usage. For example, a long-term stock investor may outline investment goals for any time longer than one year, while a long-term bond investor may hold a bond until it matures 10 or more years later. Long-term investing involves more uncertainty than anything short-term because, generally speaking, market trends are more easily predictable in the short term. Thus, while planning for the long term is necessary, one's plan must be flexible to account for the uncertainty inherent in it. See also: Value investor.