The relative strength index (RSI) is a momentum indicator that measures the magnitude of recent price changes to analyze overbought or oversold conditions.

Learn how free-float methodology calculates market capitalization by excluding locked-in shares. Understand its impact and advantages over full-market capitalization.

With the heat of summer upon us, we hear a lot about the heat index in our weather forecasts these days. But what exactly is the heat index and how is it calculated? "It's kind of the summer version ...

Use Excel to calculate daily returns and standard deviation to gauge stock volatility. Annualize volatility by multiplying daily standard deviation by the square root of 252. Remember, standard ...