In March 2000, this bubble burst, and a large number of less-experienced day traders began to lose money as fast, or faster, than they had made during the buying frenzy. The NASDAQ crashed from 5000 back to 1200; many of the less-experienced traders went broke, although obviously it was possible to have made a fortune during that time by short selling or playing on volatility.[9][10]
Price volatility and average day range are critical to a day trader. A security must have sufficient price movement for a day trader to achieve a profit. Volume and liquidity are also crucial because entering and exiting trades quickly is vital to capturing small profits per trade. Securities with a small daily range or light daily volume would not be of interest to a day trader.
ECNs and exchanges are usually known to traders by a three- or four-letter designators, which identify the ECN or exchange on Level II stock screens. The first of these was Instinet (or "inet"), which was founded in 1969 as a way for major institutions to bypass the increasingly cumbersome and expensive NYSE, and to allow them to trade during hours when the exchanges were closed.[6] Early ECNs such as Instinet were very unfriendly to small investors, because they tended to give large institutions better prices than were available to the public. This resulted in a fragmented and sometimes illiquid market.
News provides the majority of opportunities from which day traders capitalize, so it is imperative to be the first to know when something significant happens. The typical trading room contains access to the Dow Jones Newswire, constant coverage of CNBC and other news organizations, and software that constantly analyzes news sources for important stories.  
Order execution: A novice needs to master the art of efficient order execution. A delayed or bad order can wipe out what little profit was earned and even result in a loss. Since the profit margin per trade is limited, the order execution has to be accurate. As mentioned above, this requires supporting systems such as Direct Access Trading and Level 2 quotations.
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It is important to understand the fundamentals of intraday trading in order to make consistent profits. A good tip is to trade with the current market trend. If the market is falling, sell first and buy later, and vice versa. Make an intraday trade plan and stick to the plan. Set your desired profit and stop-loss limit. Do not be greedy. Instead, book your profits at regular intervals. Maintain stop-loss levels. It helps you to limit your loss if the market does not perform. Also, choose highly liquid shares and trade in a small number of shares at a time, if you are not a seasoned trader.
The bid–ask spread is two sides of the same coin. The spread can be viewed as trading bonuses or costs according to different parties and different strategies. On one hand, traders who do NOT wish to queue their order, instead paying the market price, pay the spreads (costs). On the other hand, traders who wish to queue and wait for execution receive the spreads (bonuses). Some day trading strategies attempt to capture the spread as additional, or even the only, profits for successful trades.[18]
This is usually reserved for traders working for larger institutions or those who manage large amounts of money. The dealing desk provides these traders with instantaneous order executions, which are particularly important when sharp price movements occur. For example, when an acquisition is announced, day traders looking at merger arbitrage can place their orders before the rest of the market is able to take advantage of the price differential.
The bid–ask spread is two sides of the same coin. The spread can be viewed as trading bonuses or costs according to different parties and different strategies. On one hand, traders who do NOT wish to queue their order, instead paying the market price, pay the spreads (costs). On the other hand, traders who wish to queue and wait for execution receive the spreads (bonuses). Some day trading strategies attempt to capture the spread as additional, or even the only, profits for successful trades.[18]
Trading stocks intraday offers different opportunities than a traditional ‘buy and hold’ strategy. Speculating on stock prices via CFDs or spread betting for example, mean traders can profit from falling prices too. Margin or leverage also reduce the capital required to open a position. So you can take a position on the latest news release, product announcement or financial report – as well as technical indicators.
Scalping is a fast-paced activity for nimble traders. It requires precision timing and execution. Scalpers use day trading buying power of four to one margin to maximize profits with the most shares in the shortest amount of holding time. This requires focusing on the smaller time frame interval charts such as the one-minute and five-minute candlestick charts. Momentum indicators such as stochastic, moving average convergence divergence (MACD) and relative strength index (RSI) are commonly used. Price chart indicators such as moving averages, Bollinger bands and pivot points are used as reference points for price support and resistance levels.
This often means trading shares of companies that have just released breaking news, reported earnings, or have another fundamental catalyst that is resulting in above average retail interest. The type of stocks a day trader will focus on are typically much different from what a long term investor would look for. Day traders acknowledge the high levels of risk associated with trading volatile markets and they mitigate those risks by holding positions for very short periods of time.
When it comes to intraday trading, daily charts are the most commonly used charts that represent the price movements on a one-day interval. These charts are a popular intraday trading technique and help illustrate the movement of the prices between the opening bell and closing of the daily trading session. There are several methods in which intraday charts can be used. Know about some of the most commonly used chart.
Whether you are scalping EUR: USD, other currency pairs, or other assets outside of forex, it’s important to pay attention to the details. Scalping typically occurs in 5-20 minute increments. However, if you were trying to implement a one-minute scalping strategy, volume indicators, M5/M15 time charts, and price action trends should be the first things you look at.
Risk management - Rather than looking for one big trade, the way a trend trader might, the scalper looks for hundreds of small profits throughout the day. In this process the scalper might also take hundreds of small losses during the same time period. For this reason a scalper must have very strict risk management never allowing a loss to accumulate.
A day trader often closes all trades before the end of the trading day, so not to hold open positions overnight. A day traders' effectiveness may be limited by the bid-ask spread, trading commissions, as well as expenses for real-time news feeds and analytics software. Successful day trading requires extensive knowledge and experience. Day traders employ a variety of methods to make trading decisions. Some traders employ computer trading models that use technical analysis to calculate favorable probabilities, while some trade on their instinct.

Day traders are attuned to events that cause short-term market moves. Trading the news is a popular technique. Scheduled announcements such as economic statistics, corporate earnings or interest rates are subject to market expectations and market psychology. Markets react when those expectations are not met or are exceeded, usually with sudden, significant moves, which can benefit day traders.