Long

In trading, long refers to the act of buying an asset with the expectation that its price will rise.

The goal of going long is to buy an asset at a lower price and sell it later at a higher price, thus making a profit from the difference. This is the most common form of trading, especially in traditional financial markets like stocks, commodities, and forex.

This is in contrast to a "short" position, where you profit from a price decline.

For example, when you go long on the EUR/USD currency pair, you are buying euros and selling U.S. dollars.

Taking a long position in trading does not however always mean buying the asset; the core idea of going long is taking a position that benefits from the price increasing, but the way it’s executed can vary depending on the type of asset or instrument.