【Understanding Contracts】Why does opening 10X leverage lead to liquidation when the coin price drops by 5%?
🚩 Core Truth: Exchanges are not 'philanthropists'
Many beginners have a fatal misconception: 'I opened a position of 100U, as long as I haven't lost down to 0U, my order is still active.' This is actually incorrect. To prevent you from owing the platform money, exchanges have a life-and-death line. As long as your funds fall below this line, the system will immediately take your position. This line is called 【Maintenance Margin Rate】.
🔍 In-depth Analysis: What is 'Maintenance Margin'? Simply put, this is the minimum margin balance you need to maintain your position.
Calculation formula: Your 【Margin Balance】 / 【Position Value】 < 【Maintenance Margin Rate】 → Immediate liquidation!
For example:
You use 100U to open 10 times leverage, buying a certain altcoin worth 1000U. If the maintenance margin rate for that coin is 5%, then: 50U/1000U = 5%.
Result: When you lose 50U and still have 50U left, the system directly liquidates you, causing you to lose half of your principal!
⚖️ Caution: The maintenance margin rates for different coins vary significantly! The maintenance margin rates for different coins can be vastly different:
Mainstream coins BTC, ETH, approximately 0.4% - 0.5%, with a large margin for error; liquidation only occurs when the margin is nearly exhausted.
Popular altcoins / MEME may be as high as 2.5% - 5%, triggering liquidation with even a slight drop!
💡 Unique Insight: With the same leverage, the 'margin for error' when trading altcoins is much lower than with major BTC. Many small coins have large fluctuations and high maintenance margin rates, which is why small coins are most prone to 'pin liquidation'.
🛠️ Retail Survival Rules: How to avoid being 'liquidated'?
1. Stop-loss ≠ Liquidation: Liquidation is passive settlement; not only do you lose your money, but you usually incur an additional settlement fee, leading to a true zero. Stop-loss is an active retreat, leaving you with considerable margin to recover. Always set your stop-loss before the liquidation price.
2. Stay away from extreme leverage: 20x, 50x, or even 100x leverage can compress your margin space to the extreme. A coin price may only fluctuate by 0.3%, and you might already be touching that maintenance margin red line.