How risky is stock trading?

If you own shares in any company, the only risk is that you may lose money on it. All stocks rise and fall with the part of the market they are attached to. If all you own are publicly held shares of a company, the only thing you would have to worry about is that company going out of business. You have never lost any money until you have taken it out of the market below the price you have bought it at, even if the stock has reached the bottom. The companies stock could go all the way down to 0.00, but if the company is still in business, it may still rise.