I notice that many trading friends are curious about the martingale strategy, so today I want to share my understanding of how it works and what to watch out for.

What is martingale? Simply put, it is a strategy of increasing the bet after each loss, with the idea that when the price turns around, a winning trade will cover all previous losses and still make a profit. This strategy originates from gambling games, but later traders applied it to financial trading.

Its operation in practice is quite straightforward. You buy an asset at a certain price. If the price drops, instead of cutting losses, you open a new position with a larger amount. If the price continues to fall? You increase again. This process continues until the price recovers, at which point your average buy price will be lower and you can close all positions with a profit.

A specific example: You buy BTC at $10. It drops to $9.5, you open a second position with $12 (a 20% increase). It drops further to $9, you open a position with $14.4. Each time, your average price decreases. A small recovery can then close all positions with a profit.

But this is also where martingale becomes risky. If you have $100 and start with a $10 position, after 5 rounds of averaging at 20%, you will spend about $74. If the price continues to fall without recovering, you might run out of money for the next position. That’s when things can get really bad.

I’ve seen many new traders get caught up in this strategy without proper calculations. They think the price will always recover, but the market isn’t always like that. There are strong downward trends that last long, and martingale can quickly wipe out an account.

If you decide to use martingale, follow some principles. First, only increase by 10–20% for each subsequent trade, not double. Second, calculate in advance how many trades you can open with your deposit. Third, always keep a reserve fund. Fourth, monitor the main trend — if the market is in a strong downtrend, avoid averaging.

The calculation formula is quite simple: Next order = Previous order × (1 + Martingale rate). For example, with a 20% martingale and an initial $10 order: Order 1 is $10, Order 2 is $12, Order 3 is $14.4, Order 4 is $17.28, Order 5 is $20.74. Total is $74.42.

My conclusion is: Martingale is a powerful tool when used correctly, but it’s not a "sure-win" strategy. It requires discipline, strict risk control, and market understanding. Beginners should only use a 10–20% increase rate and have a plan for continued market decline. Trade smartly, manage risks, and don’t let emotions influence decisions. If interested, you can look into assets like BTC, ETH, BNB on exchanges to better understand how to apply it.