Stock price history plays a key role in analytical tools that provide trends for stock trading. A person who is going to be an active trader will want to learn about the different tools and systems that use this history in order to understand how certain systems, methods and strategies are used in successful trading.

Trends, or price histories, for industries and companies can go back up to twenty years. When several companies are compared, it is possible to find both company trends and industry trends that make selecting stocks for trading much easier.

Long term trends cover increments of ten years. These trends provide information on the floor, or support for a stock and the ceiling, or resistance of a stock. Using these figures a person knows what the lowest and highest prices for a stock are.

Intermediate trends occur every 3-5 years over the long term. The gains and losses of the intermediate trends may be due to a major adjustment in the industry, a change in leadership, or a change in the organizational structure of a company. Short term trends are short gains and losses that occur over a period of a few weeks or months. These trends are more difficult to analyze because they are usually caused by immediate events that are occurring in the world.

Successful traders use several tools to analyst trends simultaneously. These tools are adjusted to meet the specifications of the industries they are trending. When analyzed properly trends can provide information that will increase the gains a person makes from their investments and give a person important information.

Taking time to complete the necessary analysis is what gives the successful trader the advantage when they are making trades and making plans on the correct stop-loss orders and limit orders to set for their stocks.

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