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 ...

The Consumer Price Index “is a measure of the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services,” according to the Bureau of Labor ...

Why struggle to find a needle in a haystack when you can buy the haystack? That was Vanguard founder Jack Bogle's argument for indexing nearly half a century ago when he launched the first index fund ...

The S&P/TSX Composite Index (INDEXTSI:OSPTX) is the principal market measure for the Canadian equities market, and is calculated and managed by S&P Dow Jones Indices. The index, which was launched in ...

The VIX, or "fear gauge," measures expected stock market volatility over 30 days. A higher VIX suggests increased market stress and potential stock market declines. Stock market uncertainty from ...

The latest wave of optimism around AI helped lift tech stocks on Wednesday, Oct. 8, 2025, while competition weighed on a ...

Grace Manthey is the senior visual data journalist and data team coordinator for CBS News and Stations. She is an Emmy-winning journalist and visual storyteller with a passion for telling stories that ...