To trade stocks online successfully, some stock traders rely purely on their trading tools. Trading platforms come in one of three forms: desktop, web (browser), or mobile. Advanced charting, scanning, hotkeys, virtual trading, watch lists, ladder trading, Level II quotes, and backtesting are just a sampling of the features some brokers offer. To compare trading platform features, use the online brokerage comparison tool.

Support All Eligible Types of Participants: A marketplace is made by a variety of participants, which include market makers, investors, traders, speculators, and hedgers. All these participants operate in the stock market with different roles and functions. For instance, an investor may buy stocks and hold them for long term spanning many years, while a trader may enter and exit a position within seconds. A market maker provides necessary liquidity in the market, while a hedger may like to trade in derivatives for mitigating the risk involved in investments. The stock market should ensure that all such participants are able to operate seamlessly fulfilling their desired roles to ensure the market continues to operate efficiently.
Based on a unique study of every market cycle since the 1880s, Investor's Business Daily's CAN SLIM Investing System gives you the tools to do just that. It identifies the seven common traits of winning stocks, and provides time-tested rules for how to buy stocks like Veeva Systems (VEEV), Nvidia (NVDA), Facebook (FB), (AMZN) or Apple (AAPL) as they begin to climb higher, when to sell to lock in your profits, and how to time the stock market.
Astute readers will realise that the above guidance is mainly taking different angles to help prepare for and guide decision making by the investor. The ability to confidently make decisions is vital for investment profits and long-term success. This pdf about the decision making models of Charlie Munger (business partner to Warren Buffett at Berkshire Hathaway - both are certified investment immortals) is almost certain to prove helpful.
Should the company management and majority owners choose, they can pay one or more dividends per year to stockholders. The money for these dividends will typically come from profits earned within the business. In most countries, these dividends are subject to income tax payable by the receiver. Often there is a withholding tax taken at source to ensure that non-resident shareholders pay as well. 
Dollar-cost average: This sounds complicated, but it’s not. Dollar-cost averaging means investing a set amount of money at regular intervals, such as once per week or month. That set amount buys more shares when the stock price goes down and fewer shares when it rises, but overall, it evens out the average price you pay. Some online brokerage firms let investors set up an automated investing schedule.