I just came across an old article about Dow Theory and thought that many people still don’t understand this theory, even though it has been a fundamental basis of trading for over 100 years.

Let me explain it simply. Dow Theory isn’t complicated at all. In fact, it’s just observing that stock prices move like ocean waves. When the water rises, it gets higher; when it falls, it gets lower. That’s all there is to it.

Charles Dow came up with this idea to help investors understand whether the market is going up or down, so they can plan their trades better. It has become one of the most important principles of Technical Analysis.

What I like about Dow Theory is its simplicity yet effectiveness. It states that prices tend to move in a primary trend that can last from 1 to 4 years, an intermediate trend that lasts from 3 weeks to 3 months, and a minor trend that lasts just a few weeks.

Once you understand these trends, you’ll know whether the market is in an uptrend, making higher highs and higher lows, or transitioning into a downtrend, making lower highs and lower lows.

The main principles of Dow Theory include six points, but the most important is that the market discounts all information. This means that the current price reflects everything—news, economic factors, and investor psychology.

Another key point is that trading volume must align with the trend. If prices are rising but volume isn’t increasing, it could be a sign that the rally isn’t strong.

Each trend has three phases: the first is Accumulation, where big investors start buying; the second is Public Participation, where prices clearly rise with increasing volume—this is the golden period for speculation; the last is Distribution, where prices spike rapidly and big investors start selling. Trading during this phase is risky because prices can reverse at any moment.

A pattern I like to observe is Double Bottom and Double Top. Double Bottom looks like a W, where the price hits two lows before moving higher. Double Top looks like an M, where the price hits two highs before turning lower.

The advantage of Dow Theory is its solid foundation, helping us identify trends accurately. It can be applied to all assets—stocks, gold, cryptocurrencies. But the downside is that it’s slow; by the time you confirm a trend, the price may have already moved far.

If you understand Dow Theory, trading CFDs (Contracts for Difference) becomes very suitable because you can trade both ways—buy during an uptrend and sell during a downtrend. For example, if you see gold making Higher Highs and Higher Lows, you might buy. If it starts making Lower Highs and Lower Lows, you should sell.

What I want you to remember is that Dow Theory is simple, but that simplicity is its strength. No need to get involved with complex economic numbers. Just observe the trend, volume, and know which phase of movement you’re in—that’s enough to plan your trades well. Practice with a demo account first until you feel you understand it enough.