Use a weighted average to evaluate stock performance if purchased in multiple transactions. Calculate weighted average by multiplying share price by quantity, then divide by total shares. Knowing your ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

With stocks that you've invested in multiple times, it's useful to know how to calculate average trade price. This information can help you track your gains and losses over time. There are different ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Erika Rasure is globally-recognized as a leading consumer economics subject matter expert, ...