What is day trading?
Day trading is buying and selling the same financial instrument within a single trading session, aiming to profit from short-term price movements rather than long-term value. It is practised in equities, forex, futures, options and crypto — almost always through online brokers, and very often with leverage.
How it works in practice
A day trader opens and closes positions within hours or minutes, ending the day flat to avoid overnight risk. Income comes from many small price movements rather than from a company's earnings or an asset's long-run growth. Every position pays a spread and often a commission, so a trader must be right often enough — and by enough — to clear that cost before making a profit.
Day trading vs investing
- Time horizon: minutes and hours, versus years and decades.
- Source of return: price movement between participants, versus underlying business earnings and economic growth.
- Cost profile: a cost on every trade, versus a one-off cost and a low ongoing fee.
- Tax treatment: short-term rates, versus long-term capital-gains rates in most jurisdictions.
- Expected value: negative for the average retail participant, versus historically positive for diversified long-term holders.
The instruments involved
Equities are traded directly on exchanges. Forex and CFDs are leveraged derivative contracts, capped at limited leverage in the EU and UK and banned for US retail investors. Futures and options add expiry and, for options, time decay. Crypto trades around the clock with the highest volatility and the least regulatory protection.
What usually happens
Multi-year studies of real brokerage accounts find that roughly 97-99% of retail day traders lose money net of costs. That is the single most important fact about the activity, and it is stable across countries, decades and asset classes. See the full statistics for the sources.
Frequently asked questions
What counts as a day trade?
Opening and closing a position in the same instrument during the same trading session. In the US, an account making four or more such trades in five business days is flagged as a pattern day trader and must maintain $25,000 in equity.
How much money do you need to start day trading?
US pattern day traders need $25,000 in account equity. Elsewhere brokers accept far less, which is part of the problem: small accounts use high leverage and are wiped out fastest.
Is day trading the same as swing trading?
No. Swing traders hold positions for days or weeks. They trade less often, so they pay less cost drag, but the outcome data for active retail traders is still poor.
Is day trading gambling?
For most retail participants the expected value is negative after costs, which is the defining property of gambling. The difference is that the losses are less visible and take longer to arrive.
Read the whole argument
Day Trading Kills explains the mechanics, the incentives and the evidence in full — and what to do instead.