Recently, many people have been asking about the difference between full margin and isolated margin in trading. I'll try to explain it in a more practical way.

So, full margin is a system where all positions with the same margin asset share a single margin pool from that asset. This means your contract account margin can serve as a reserve for all positions at once. The advantage is that you have more flexibility in opening positions with reasonable leverage, and it's very hard to get liquidated because there are many buffers. But the risk is, if liquidation occurs, you can lose all the margin allocated.

Unlike isolated margin, where you allocate a specific margin to just one position. If that position keeps dropping and the margin falls below the maintenance level, it gets liquidated immediately. So, you need to be ready to add margin beforehand, or the position will be wiped out.

Now, for practical purposes, if you use 100x leverage with Ethereum at the 3000 level, in full margin mode, only 30 points are needed for a 100% margin opening. But in isolated margin, just 15 points are enough to reach 100%. It seems advantageous in isolated margin, but remember— the risk is also twice as high. If you forget to add margin, you're immediately liquidated.

For fund allocation, I usually use 10% of the total funds for super short-term positions with high leverage. With 100x leverage, Ethereum needs 300 points for liquidation, which is quite safe. Always set take profit and stop loss, and keep monitoring. For medium to long-term positions, 3-6% of the funds is enough to be safe.

There's one important thing that people often overlook—between high leverage low margin vs low leverage high margin. For example, with a total fund of 10,000 USDT, you can open a 1,000 USDT position with 100x leverage, or 4,000 USDT with 25x leverage. The P&L fluctuation is the same, but the first still has 9,000 USDT to add positions, average down, or hedge. The second only has 6,000 USDT in reserve. So, full margin is a more flexible choice because you still have more room to manage your positions.

In general, full margin is suitable for those who like to manage risk carefully and have reserve funds. Isolated margin is suitable for aggressive traders who are ready to monitor 24/7. Choose according to your trading style.