| The Boeing is an aerospace firm. Co. operates in four reportable segments: Commercial Airplanes, which develops, produces and markets commercial jet aircraft principally to the commercial airline industry; Defense, Space and Security, which engages in the research, development, production and modification of manned and unmanned military aircraft and weapons systems; Global Services, which sustains aerospace platforms and systems with a range of products and services; and Boeing Capital, which seeks to ensure that Co.'s customers have the financing they need to buy and take delivery of their Boeing product, while managing overall financing exposure.
When researching a stock like Boeing, 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 BA 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 BA stock — the real life supply and demand for the stock over time — and examines that data in different ways. One of those ways is to calculate a Simpe Moving Average ("SMA") by looking back a certain number of days. One of the most popular "longer look-backs" is the BA 200 day moving average ("BA 200 DMA"), while one of the most popular "shorter look-backs" is the BA 50 day moving average ("BA 50 DMA"). A chart showing both of these popular moving averages is shown on this page for Boeing. Comparing two moving averages against each other can be a useful visualization tool: by calculating the difference between the BA 200 DMA and the BA 50 DMA, we get a moving average convergence divergence indicator ("BA MACD"). The BA MACD chart, in conjunction with the chart of the moving averages, basically helps in visualizing how the moving averages are showing convergence (moving closer together), or divergence (moving farther apart).