Liquidation happens when your losses become large enough that the exchange automatically closes your futures position because there isn't enough margin left to keep it open.

For example, imagine:

You deposit $10 → use 10× leverage → control $100.

If the market moves significantly against your position, your $10 margin can be rapidly reduced by your losses.

Eventually, the exchange may close the position automatically.

This is called liquidation.

Importantly, liquidation isn't the same as a stop-loss. A stop-loss is an exit you choose in advance to limit your loss; liquidation is an automatic risk-control mechanism used by the exchange.

Leverage Works for Both Long and Short Trades

Leverage can be used whether you think the price will go up or down.

Long

You believe the price will rise.

BTC: $100,000 → $102,000

You make a profit if your long position benefits from that move.

Short

You believe the price will fall.

BTC: $100,000 → $98,000

You make a profit if your short position benefits from that move.

Leverage can be applied to both.

Why Do Traders Use Leverage?

The main reason is capital efficiency.

Without leverage, you might need $1,000 to control a $1,000 position.

With 10× leverage, you could potentially control a $1,000 position with around $100 of margin.

However, this doesn't make the trade safer or create free money. It simply gives you greater exposure to the market.

A small price movement can therefore have a much larger effect on your margin.

The Most Important Rule for Beginners

Don't think:

"Higher leverage = higher profit."

Think:

"Higher leverage = higher exposure and less room for error."

For someone learning futures, the priority should be understanding:

Margin → Position Size → Leverage → Long/Short → Stop-Loss → Take-Profit → Liquidation → Risk Management

Once you understand these concepts, futures will become much easier to understand.