Marginal VaR measures the risk added by new investments in a portfolio. Learn its definition, how it works, calculation, and impact on overall risk management.

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Robert Kelly is managing director of XTS Energy LLC, and has more than three ...

Marginal cost helps predict company profit by analyzing cost to produce extra units. Investors use the gap between marginal cost and revenue to assess profitability. Technology firms, due to low ...