If you didn't, you might have to come up with more margin money immediately or risk having your position liquidated. Intraday trading also protects you from the adverse effects of events that occur while the markets are closed, resulting in large gap openings. Although some electronic overnight markets now exist, the 24-hour global trading village still is a long way from reality, and you have no control over world events that may turn a market against you while you sleep, whether it's a government affecting your currency position, a war affecting your oil position or a monsoon affecting your rice position. The day-trader must adjust profit objectives to the shortened time horizon. Day-trading rarely will give you the big trade you've been waiting for your whole life, but on the other hand, you might sleep better at night without having to worry about the market opening 10 points against you in the morning.
Every day starts with a clean slate.
Ball control vs. big play. You give up throwing the bomb but at the same time remove the chance of the devastating interception. Laying the foundation Most technical analysis that can be applied to monthly, weekly or daily data will work on an intraday scale, at least to an extent. Indicators that are too noise-sensitive or have a tendency to lag might give a distorted view of a market and lack practical applications. You also must focus on contracts with enough liquidity to get good fills and enough volatility for decent size price moves.