I received a call at 2 a.m., and an investor said urgently: "10x leverage with full position only retraced 3%, and I lost 10,000 yuan."

Checking the trading record, I saw they went all-in with 9,500 USDT without even setting a stop-loss.

This is a common misconception about full positions—many people equate "full position" with "being able to withstand the drop," but in reality, it's the opposite. Poor use of full positions often leads to faster liquidation than partial positions.

**The key is not leverage, but position size**

For example, with a 1000U account. If you open a 10x position with 900U, a 5% adverse move will directly liquidate. But if you open a 10x position with 100U, it takes a 50% move to liquidate. That friend put 95% of their principal in at once, then used 10x leverage—any slight retracement wipes them out.

**Sustainable way to use full positions**

Based on half-year practical experience of avoiding liquidation and doubling capital, there are three principles worth following:

**First, no single trade exceeds 20% of total funds.** For a 10,000U account, invest at most 2,000U at once. Even with a 10% stop-loss, only lose 200U, preserving the principal and allowing for recovery. For popular coins like $SOL, this ratio can be used for testing.

**Second, never lose more than 3% of total funds in a single trade.** With 2,000U at 10x leverage, set a 1.5% stop-loss in advance; a 1.5% loss equals 300U, which is 3% of total funds. Even a few wrong trades won't cause serious damage.

**Third, avoid opening positions during sideways movement, and do not add to profits.** Only trade trend breakouts; wait and watch during consolidation. Never chase after opening a position, to eliminate emotional interference. For example, with coins like $D, it's better to wait until the trend is clear before acting.

**The true value of full position**

The original purpose of full position is to leave room for volatility— but only if combined with light position sizing for trial and strict risk control. One investor previously experienced monthly liquidation, but after following these three principles, in three months, their 5,000U grew to 8,000U. They said: "I used to think full position was gambling my life, but now I understand, full position is about trading more steadily."

The essence of crypto trading is not about who earns faster, but about who survives longer.