Katharine Beer is a writer, editor, and archivist based in New York. She has a broad range of experience in research and writing, having covered subjects as diverse as the history of New York City's ...

This calculation gives a more accurate picture of a company's earnings. Weighted averages consider the duration each share count is valid to accurately reflect earnings per share. A weighted average ...

To calculate a price-weighted average, sum the stock prices and divide by the number of stocks. This average reflects changes in higher-priced stocks more than lower-priced ones. Use price-weighted ...

On the other hand, if Intel stock experienced the same 20% move to $34.56, it would translate to a price-weighted average of $60.14, or a move of just 3.3%. So Apple's 20% move has more than three ...