Day trading is speculation in securities, specifically buying and selling financial instruments within the same trading day, such that all positions are closed before the market closes for the trading day. Traders who trade in this capacity with the motive of profit are therefore speculators. The methods of quick trading contrast with the long-term trades underlying buy and hold and value investing strategies. Day traders exit positions before the market closes to avoid unmanageable risks and negative price gaps between one day's close and the next day's price at the open.
The key to scalping while using short time frames is to identify price changes before the rest of the market has had the chance to act. You should also be willing to accept very low profit margins—gaining less than 1% on a given action will still usually be in your best interest. Because of this, many scalpers may implement tight stop-loss and stop-limit orders over time.
Read books and articles on trading. Consider getting mentoring from someone you have followed and who's method you feel would work with your personality and needs. Invest in your own education, not trade signals you pay for each month or expensive subscriptions—these only serve to make you reliant on someone else. Invest in yourself from the start. That way, no matter what happens you have the skills to get the job done, on your own.
It is estimated that more than 75% of stock trades in United States are generated by algorithmic trading or high-frequency trading. The increased use of algorithms and quantitative techniques has led to more competition and smaller profits. Algorithmic trading is used by banks and hedge funds as well as retail traders. Retail traders can choose to buy a commercially available Automated trading systems or to develop their own automatic trading software.
You're probably looking for deals and low prices, but stay away from penny stocks. These stocks are often illiquid, and chances of hitting a jackpot are often bleak. Many stocks trading under $5 a share become de-listed from major stock exchanges and are only tradable over-the-counter (OTC). Unless you see a real opportunity and have done your research, stay clear of these.