Day trading is the practice of buying and selling a financial asset within the same trading day, with the aim of profiting from small, short-lived price movements. A day trader opens and closes positions over minutes or hours and normally holds nothing overnight, so the result of each day is settled by the close. The style is used in shares, futures, currencies and, increasingly, cryptocurrencies, and it relies on frequent decisions, fast execution and close attention to price.
Day trading sits at the short end of a spectrum of trading styles. Scalpers hold positions for seconds or minutes, day traders for up to a session, swing traders for days or weeks and position traders for months. It is distinct from high-frequency trading, which is run by firms using computers that trade in microseconds, although many individual day traders now use automated tools. In crypto markets, which trade around the clock, the idea of a "day" is looser, and traders often define their own session.
Day trading in plain terms
Imagine a market stall trader who buys fruit at dawn and sells it all by evening, never storing anything overnight. The stall holder does not care what fruit will cost next year; the only goal is to buy a little cheaper than they sell, many times a day. Day traders do the same with shares or coins: they look for small gaps between where a price is now and where it may be an hour later.
Because each gain is small, day traders need many trades to make money, and every trade carries a cost. A few bad decisions can wipe out many good ones. That is why day trading is often described as a full-time job that needs discipline, a clear plan for when to get out, and money the trader can afford to lose.
How day trading works
A day trader opens an account with a broker or exchange, watches live prices and enters orders as opportunities appear. A market order fills immediately at the best available price, while a limit order fills only at a set price or better. Most traders also use a stop-loss order to close a position automatically if the price moves against them by a set amount. Traders tend to focus on assets with high trading volume and narrow spreads, because these can be bought and sold quickly without moving the price much.
Many day traders use borrowed money to enlarge their positions. Margin trading and leverage magnify both gains and losses, so a small move against a heavily leveraged position can lead to a margin call or forced liquidation. Traders can profit from falling prices as well as rising ones by short selling.
Common methods
- Technical analysis. Most day traders read price charts, such as the candlestick chart, and indicators such as the exponential moving average or the relative strength index to judge short-term direction.
- Momentum trading. Traders buy assets that are already moving strongly on high volume, often after news, and try to ride the move for part of the day.
- Range trading. Traders buy near the bottom of a recent price range and sell near the top, betting that the range will hold.
- News trading. Traders react to earnings reports, economic data or, in crypto, exchange listings and protocol announcements.
- Automated trading. Some traders run rules-based programs, a form of algorithmic trading, that enter and exit positions without manual input.
Costs and risks
Each trade carries costs: commissions or exchange fees, the bid-ask spread and slippage, which is the gap between the expected and actual fill price. Because day traders trade often, these costs add up and can turn a small gross profit into a net loss. Short-term gains are also usually taxed as ordinary income in many countries, often at higher rates than long-term gains.
Academic studies of large groups of retail day traders, including long-running data sets from Taiwan and Brazil, have found that the large majority lose money over time once costs are included, and that only a small minority earn consistent profits. Day trading also carries psychological risks: volatility encourages emotional decisions, and losses can lead traders to take bigger risks to win money back.
Rules and regulation
In the United States, brokerage rules set by FINRA have long treated a customer who makes four or more day trades within five business days in a margin account as a "pattern day trader", who must keep at least $25,000 of equity in the account. FINRA has proposed changes to this framework, so traders should check the version in force. Brokers in other countries apply their own margin and suitability rules, and regulators such as the Securities and Exchange Commission publish warnings about the risks. Crypto exchanges are less uniform: some offer very high leverage to retail customers, while regulators in several jurisdictions have restricted leveraged crypto products for retail investors.