The concept of Long Position and Short Position in trading is a fundamental understanding that traders must grasp clearly. Let's see how these two orders work.

Starting with a Long Position, which means placing a buy order because we expect the price to go up. A Long position is a bet that the price will increase. We buy at a low price and wait for it to rise to sell at a higher price, making a profit from the price difference. For example, if we buy an asset at 41 baht and the price rises to 42 baht, we sell it and earn a profit of 1 baht. It's that simple.

But if the price doesn't rise as expected and instead drops, for example, to 40 baht, we have to sell at that price, resulting in a loss of 1 baht. This is the risk of opening a Long Position.

Conversely, the Short Position involves placing a sell order first, expecting the price to fall. We sell at a high price and wait for the price to decrease so we can buy back at a lower price, also making a profit. For instance, if we sell at 41 baht and the price drops to 40 baht, we buy back at 40 baht and earn a profit of 1 baht.

The important thing to know is that a Long Position is a way to profit from an upward market trend, while a Short Position allows us to profit from a downward market trend. We don't have to wait for the market to rise only.

Let's look at a real example with stocks. Suppose we hear that PEAR company has improved its performance, and we believe the stock will definitely go up. We buy 100 shares at 350 baht, spending 35,000 baht. This is opening a Long Position. Later, the stock price actually rises to 400 baht, and we sell, earning 40,000 baht. The profit is 5,000 baht.

Similarly, for a Short Position, but in the opposite way. Suppose we hear that ORANGE company will face raw material issues, and we believe the stock will definitely fall. We borrow and sell 100 shares at 350 baht, earning 35,000 baht. Later, the stock drops to 300 baht, and we buy back 100 shares for 30,000 baht to return to the lender, earning a profit of 5,000 baht as well.

What you need to remember is that Long and Short Positions are not available on all instruments. They are mostly used with derivatives like CFDs or flexible trading instruments. Before trading any instrument, check whether that instrument allows Short orders, because not all do.

The main point is that a Long Position is a bet on a rising market, while a Short Position is a bet on a falling market. This gives traders the opportunity to profit from both directions, whether the market goes up or down.