The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 390 to 700 nm. In terms of frequency, this corresponds to a band in the vicinity of 430â770 THz.
P/FCF = Market capitalization / Free Cash Flow. The Price-to-Free Cash Flow (P/FCF) ratio a popular valuation ratio among value investors. It is similar to the P/E ratio but free cash flow is just operating cash flow minus capital expenditures.
Price-to-earnings ratio (P/E). The price-to-earnings ratio (P/E) is the relationship between a company's earnings and its share price, and is calculated by dividing the current price per share by the earnings per share. A stock's P/E, also known as its multiple, gives you a sense of what you are paying for a stock in relation to its earning power. For example, a stock with a P/E of 30 is trading at a price 30 times higher than its earnings, while one with a P/E of 15 is trading at 15 times its earnings.