Discover how to accurately calculate beta in Excel, understand its importance in finance, and ensure consistency by choosing the correct time periods for data analysis.

U.S. stock futures were mostly higher Tuesday after Nvidia set it's likely to resume sales of key chips to China, with a key inflation report and bank earnings on the way. Dow Jones Industrial Average ...

Stock Market News, July 31, 2025: Dow ends 330 points lower, S&P 500 and Nasdaq give up gains in choppy trade ahead of more tech earnings; Figma soars in debut U.S. stocks end a choppy session mostly ...