| CarMax is a holding company. Through its subsidiaries, Co. is engaged as a retailer of used vehicles. Co. operates in two reportable segments: CarMax Sales Operations and CarMax Auto Finance (CAF). Co.'s CarMax Sales Operations segment sells used vehicles, purchases used vehicles from customers and other sources, sells related products and services, and arranges financing options. CAF provides financing solely to customers buying retail vehicles from Co. CAF also services various auto loans it originates and is responsible for providing billing statements, collecting payments, maintaining contact with customers, and arranging for the repossession of vehicles securing defaulted loans.
When researching a stock like Carmax, many investors are the most familiar with Fundamental Analysis — looking at a company's balance sheet, earnings, revenues, and what's happening in that company's underlying business. Investors who use Fundamental Analysis to identify good stocks to buy or sell can also benefit from KMX Technical Analysis to help find a good entry or exit point. Technical Analysis is blind to the fundamentals and looks only at the trading data for KMX stock — the real life supply and demand for the stock over time — and examines that data in different ways. One of these ways is called the Relative Strength Index, or RSI. This popular indicator, originally developed in the 1970's by J. Welles Wilder, looks at a 14-day moving average of a stock's gains on its up days, versus its losses on its down days. The resulting KMX RSI is a value that measures momentum, oscillating between "oversold" and "overbought" on a scale of zero to 100. A reading below 30 is viewed to be oversold, which a bullish investor could look to as a sign that the selling is in the process of exhausting itself, and look for entry point opportunities. A reading above 70 is viewed to be overbought, which could indicate that a rally in progress is starting to get crowded with buyers. If the rally has been a long one, that could be a sign that a pullback is overdue.