Technical analysis

The 10 Laws of Technical Trading

Astron Team · 09/24/2026 · 4 min read

Over the decades, technical analysis has built up a set of principles that repeat across practically every serious piece of writing on the subject. They aren't mathematical formulas or guarantees of being right, but practical observations about how price tends to behave and about the most frequent mistakes made by traders who operate without these principles in mind.

Here we've gathered ten of these laws, split between market reading and operational discipline, with a straightforward explanation of how to apply each one day to day.

Laws on trend and market structure

1. The trend is your friend. Trading in the direction of the dominant price move has historically had a better chance of success than trying to anticipate reversals. That doesn't mean never trading against the trend, but it requires a stronger reason to do so.
2. Don't fight the market. When the price keeps ignoring a technical level that should have worked, the problem is usually in the reading, not in the market. Recognizing that early prevents bigger losses than necessary.
3. Volume confirms price. A breakout or a reversal with above-average volume carries more credibility than the same move on a day of weak trading.
4. History tends to repeat itself. Chart patterns work because they reflect recurring human behavior in the face of greed and fear, not because they predict the future with mathematical precision.
5. Confirm across more than one timeframe. A buy signal on the 15-minute chart carries more weight when the daily chart also points in the same direction, reducing the risk of trading against the bigger picture.

Laws on risk and discipline

1. Use a stop loss on every trade. Defining the exit point before entering keeps a small, planned loss from turning into a large, emotional one.
2. Let profits run, cut losses fast. It's common to do the opposite on impulse: exiting winning trades early out of fear of losing the gain, and holding losing trades hoping for a reversal.
3. Don't overtrade. Every entry should have a clear technical reason; multiplying trades out of anxiety or boredom erodes capital through costs and rushed decisions.
4. Plan the position size before entering. Risking a defined percentage of capital per trade, instead of an arbitrary fixed amount, keeps risk proportional even as the account grows or shrinks.
5. Discipline matters more than prediction. A trader who follows an imperfect plan consistently tends to get better results than someone with brilliant analysis who changes their mind midway through every trade.

An example of the position-size law

Suppose an account of R$ 8,000.00 and a risk rule of 1% per trade, or R$ 80.00. If a trade's stop loss is 40 points away from the entry and each point is worth R$ 2.00 per contract, the maximum position size is one contract, because two contracts would already push the risk to R$ 160.00, double the limit set by the rule. This simple calculation, repeated before every entry, is what keeps a losing streak from wiping out too large a share of capital at once.

How to apply these ten laws together

None of these laws works in isolation as a recipe for success — they hold up when applied together, as part of a repeatable process. A trader can correctly identify the trend (law 1), confirm it with volume (law 3), and still lose money if they don't set the right position size (law 9) or don't honor their own stop loss (law 6).

It's worth reviewing these ten laws periodically, especially after a losing streak, to identify which one was ignored. Often the problem isn't the technical analysis itself, but the discipline to follow it strictly. Noting, for each losing trade, which of these ten laws was set aside helps turn a loss into useful data for the next decision.

One final reminder about risk

These laws organize the decision-making process, but they don't eliminate the risk of loss inherent to any trade in the financial markets. Testing their combined application on a demo account, whether on Astron or another platform, helps turn theoretical principles into a practical habit before trading with real capital.