I just noticed that many people still don’t truly understand why asset prices rise and fall—when the truth is, it all comes down to a single basic principle: the law of supply and demand. Understanding this helps us time our trades more accurately.

Put simply, demand is the desire to buy, and supply is the desire to sell. These two forces clash in the market every second. When more people want to buy, prices rise. When more people want to sell, prices fall. There’s nothing more complicated than that.

What’s interesting is that the law of demand isn’t just about price figures—there are other factors involved too. For example, when prices drop, people have more leftover money, which makes them want to buy more. On the other hand, when prices rise, people reduce the amount they buy. This is what’s called the Income Effect.

Another concept is the Substitution Effect, which compares prices to other goods. If this item becomes cheaper compared with other options, people choose it instead. This is the result of the law of demand, which says that demand always has an inverse relationship with price.

On the supply side, it’s the opposite. When prices are higher, sellers are more willing to sell more because they can make more profit. This is called the law of supply, which states that the desire to sell is in the same direction as price.

This is where many people often go wrong. When we talk about demand in financial markets, it isn’t just about trading a single stock—it’s about acquiring entire businesses. Stock prices represent market value. So when good news comes out, buying demand increases, and prices rise accordingly. Conversely, when bad news comes out, selling demand surges, and prices fall quickly.

I saw a clear example in the year 2026, when the Strait of Hormuz was closed due to the Iran war. At that moment, 20% of the world’s oil disappeared from the market immediately. This is a Supply Shock, showing a drastic reduction in supply while the demand for energy remained the same. The result was an enormous surge in oil prices.

When demand and supply meet, what occurs is called Equilibrium, or the balance point. At this point, prices tend to not change much, because if prices rise above this level, sellers will sell more and buyers will buy less—leading to inventory piling up, which pressures prices back down. On the other hand, if prices fall below this level, buyers will buy more and sellers will sell less—leading to shortages, which pressures prices upward again.

This is extremely important for investors. If we can predict demand and supply, we can predict prices as well. That’s why market analysts look for Support and Resistance. Support is the level where buying pressure is waiting to place orders. Resistance is the level where selling pressure is waiting.

In technical analysis, the Demand Supply Zone technique is very popular because it helps us see points where price loses balance, and it tends to swing as it searches for a new equilibrium. When price runs up quickly (Rally) and then starts to consolidate within a range (Base), it shows that buying and selling forces are beginning to clash. When new news comes in, the stronger side will win—price will break out of the range and continue moving.

I’ve noticed that many people try to trade without understanding the laws of supply and demand. In reality, they’re just following the price randomly. But if you understand these basic principles, your decisions become much clearer—whether you’re trading in the short term or investing in the long term.

If you want to learn more, take a look at different asset prices on Gate, and observe when the price changes—there are often news items or other factors affecting it. The more you watch, the clearer the picture becomes. And when demand and supply are balanced, prices will stay stable. This is the point where professional traders time their opportunities.