While some companies offer what they claim is “free online stock trading,” no company can ever realistically offer a product for free, unless they are a non-profit organization with a stated goal to help bad stock traders learn how to trade better. And because no such organizations exist, you will have to trade with a company that charges you fees, whether it is explicitly or implicitly.
Companies that offer “free online stock trading” are generally offering free access to a members-only online stock trading site, which will allow you to use a range of stock trading analysis tools; it will also usually give you access to dozens of free stock tips from different sources, often including relevant newspaper clippings about publicly-owned companies.
If you opt for a “free online stock trading” company that gives you a free membership, that site will likely generate revenue by selling ad space or by charging commissions on trades. This means that your stock trading experience may be significantly inhibited by pop-ups, flashy ads, and biased information; or it may mean that you will have to pay excessive fees every time you make a...