Leverage and Liquidation Risk: Protecting Capital in Leveraged Trading

Leverage lets you open a position larger than your capital. Because profit and loss are computed on the position size, both grow together. Leverage is built into crypto futures and into Borsa Istanbul's derivatives market, VIOP, so people who trade with leverage need capital-protection rules much stricter than spot investors.

This article is educational and not investment advice. Leveraged trading can lose the entire margin you deposit and, in some markets, more.

How leverage works

If you open a 100,000 TRY position with 10,000 TRY of margin, you are using 10x leverage. A 1% price move gains or loses 1,000 TRY, which is 10% of your margin.

Leverage	Margin (100,000 TRY position)	Effect of a 1% adverse move on margin	Approx. adverse move that wipes margin
1x	100,000 TRY	1%	100%
2x	50,000 TRY	2%	about 50%
5x	20,000 TRY	5%	about 20%
10x	10,000 TRY	10%	about 10%
20x	5,000 TRY	20%	about 5%

In reality maintenance margin closes the position somewhat before these levels. Remember it this way: the higher the leverage, the smaller your margin for error.

Liquidation and margin calls

• Crypto futures: when margin falls below the maintenance level, the exchange closes the position automatically (liquidation). You are usually given no chance to recover.
• VIOP: positions are marked to market daily (daily settlement). If margin falls below the required level your broker issues a margin call; if it is not met in time the position can be closed.
• In both markets, gaps and sudden moves can make a stop order fill away from your price, so the loss can exceed what you planned.

Five principles that protect capital

1. Risk first, return second: before entering, decide the amount you accept to lose on the trade. Compute position size backwards from it; leverage is an outcome, not a goal.
2. Low leverage: high leverage means liquidation even in ordinary market noise. Most systematic approaches start low.
3. Plan the stop before the position: the stop must trigger before the liquidation level, otherwise it is meaningless.
4. Limit total exposure: several positions in the same direction and correlated behave like one large position.
5. A calculable loss day: set a cap on total daily or weekly loss and stop when it is reached. A fuller framework is in the risk management guide.

Position sizing (educational)

def units_for_risk(equity: float, risk_fraction: float, entry: float, stop: float) -> float:
    """Position size (units) from the amount you accept to lose if the stop is hit."""
    risk_amount = equity * risk_fraction            # example: a small percentage of equity
    per_unit_loss = abs(entry - stop)
    return risk_amount / per_unit_loss

equity = 100_000          # TRY
size = units_for_risk(equity, risk_fraction=0.01, entry=250.0, stop=240.0)
notional = size * 250.0
print(f"Units: {size:.1f}  Position value: {notional:,.0f} TRY  Effective leverage: {notional / equity:.2f}x")

In the example the stop is 4% away and you risk 1% of equity, so effective leverage is only about 0.25x. In other words, good risk management often means low effective leverage. (Percentages are illustrative; set your own according to your risk tolerance.)

Do not forget leverage in the backtest

Multiplying a strategy's historical return by leverage is not enough: liquidation, funding, fees and slippage must be included. For market specifics see crypto futures backtesting and VIOP leveraged trading; for the general method read the backtesting and paper trading guide.

This article is educational and not investment advice. Past results do not guarantee future performance; leveraged trading can lose all of your capital.