With low barriers to entry in the trading world, the number of people trying their hands at day trading and other strategies such as scalping has increased. Newcomers to scalping need to make sure the trading style suits their personality because it requires a disciplined approach. Traders need to make quick decisions, spot opportunities and constantly monitor the screen. Those who are impatient and feel gratified by picking small successful trades are perfect for scalping.

Retail investors are prone to psychological biases that make day trading difficult. They tend to sell winners too early and hold losers too long, what some call “picking the flowers and watering the weeds.” That’s easy to do when you get a shot of adrenaline for closing out a profitable trade. Investors engage in myopic loss aversion, which renders them too afraid to buy when a stock declines because they fear it might fall further.
Scalping in this sense is the practice of purchasing a security for one's own account shortly before recommending that security for long-term investment and then immediately selling the security at a profit upon the rise in the market price following the recommendation.[5] The Supreme Court of the United States has ruled that scalping by an investment adviser operates as a fraud or deceit upon any client or prospective client and is a violation of the Investment Advisers Act of 1940.[6] The prohibition on scalping has been applied against persons who are not registered investment advisers, and it has been ruled that scalping is also a violation of Rule 10b-5 under the Securities Exchange Act of 1934 if the scalper has a relationship of trust and confidence with the persons to whom the recommendation is made.[7] The Securities and Exchange Commission has stated that it is committed to stamping out scalping schemes.[8]

Finally, keep in mind that if trading on margin—which means you're borrowing your investment funds from a brokerage firm (and bear in mind that margin requirements for day trading are high)—you're far more vulnerable to sharp price movements. Margin helps to amplify the trading results not just of profits, but of losses as well if a trade goes against you. Therefore, using stop losses is crucial when day trading on margin.
Many times, neither a bullish nor a bearish trend is present, but the security is moving in a somewhat predictable pattern between parallel resistance and support areas. When the market moves up and then pulls back, the highest point reached before it pulls back is the resistance. As the market continues up again, the lowest point reached before it climbs back is the support. There are swing trading opportunities in this case too, with the trader taking a long position near the support area and taking a short position near the resistance area.
Each type of trading has its advantages and disadvantages. The appeal of swing trading is that it provides plenty of opportunities to trade; the dollar risk per trade is lower than with trend trading because of closer stops; it provides greater profit opportunity per trade than day trading; and quick rewards provide emotional satisfaction. The downside of swing trading is that you must work hard all the time to manage trades; you are quite likely to miss major moves where huge profits can be made; and frequent trading results in higher commission costs.
The data and analysis contained herein are provided "as is" and without warranty of any kind, either expressed or implied. Fidelity is not adopting, making a recommendation for or endorsing any trading or investment strategy or particular security. All opinions expressed herein are subject to change without notice, and you should always obtain current information and perform due diligence before trading. Consider that the provider may modify the methods it uses to evaluate investment opportunities from time to time, that model results may not impute or show the compounded adverse effect of transaction costs or management fees or reflect actual investment results, and that investment models are necessarily constructed with the benefit of hindsight. For this and for many other reasons, model results are not a guarantee of future results. The securities mentioned in this document may not be eligible for sale in some states or countries, nor be suitable for all types of investors; their value and the income they produce may fluctuate and/or be adversely affected by exchange rates, interest rates or other factors.

Retail day traders are competing with professionals. Pros know the tricks and traps. They have expensive trading technology, data subscriptions and personal connections. They’re perfectly outfitted to succeed, and even then they often fail. Among these pros are high-frequency traders, who are looking to skim pennies or fractions of pennies — the day trader’s profit — off every trade. It’s a crowded field, and the pros love to have inexperienced investors join the fray. That helps them profit.

Define and write down the conditions under which you'll enter a position. "Buy during uptrend" isn't specific enough. Something like this is much more specific and also testable: "Buy when price breaks above the upper trendline of a triangle pattern, where the triangle was preceded by an uptrend (at least one higher swing high and higher swing low before the triangle formed) on the two-minute chart in the first two hours of the trading day."