Every thriving business relies on a robust return on investment (ROI) to help gauge whether its investments are yielding a profit. Although you as an individual investor possess shallower pockets than ...

Investors need to be able to measure the performance of investments of varying sizes to determine which ones are performing well and which ones are failing. Calculating the rate of return, which is ...

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 ...