Leverage and liquidation risk: capital control in crypto margin trading

In March 2021, Archegos, the family office managed by Bill Hwang, collapsed within just a few days.

Through derivative instruments and relationships with several banks at the same time, Archegos built hidden leverage that was several times larger than its own capital. When one of the securities in the portfolio fell sharply, the banks simultaneously demanded additional collateral. When there was not enough money to meet those margin calls, a chain reaction of forced position liquidations began.

The final losses of the counterparty banks exceeded $10 billion, and the family office itself ceased to exist within just a few trading sessions.

The Archegos story is not specifically about crypto, and not even only about the stock market. It is about a universal mechanism: leverage accelerates both profit and the path toward forced position closure.

What liquidation risk is and why it is more dangerous than a regular drawdown

Liquidation risk is different from a normal market drawdown because it is irreversible.

A regular portfolio drawdown is a temporary decline in value that can be survived if the position size and capital allow the investor to remain in the market.

Liquidation is the forced closure of a position by the exchange when the margin threshold is reached. After that, the exact same position can no longer be restored, regardless of where the market goes one minute later.

Exchange-level risk increases liquidation risk in several ways:

• the specific margin calculation rules of a particular trading venue;
• the depth of liquidity at the moment of expiration or forced closure;
• the speed of execution of the closing order, which determines the actual liquidation price.

Crypto risk is higher in this sense than the risk of many traditional assets because crypto prices can move sharply over very short periods of time.

Position size as the first line of defense

Before talking about stop-losses and hedging, it is worth recognizing one thing: the main capital control tool is position size.

Determining position size relative to capital and asset volatility — known in English as position sizing — addresses liquidation risk long before the market even approaches the margin threshold.

It is similar to the difference between borrowing money to buy one lottery ticket and borrowing money to buy one hundred. In the second case, the potential win is higher, but the debt that remains if you lose also increases proportionally — and it must be repaid regardless of the outcome.

Credit risk in margin trading is often underestimated. Borrowed funds from an exchange are still credit, and counterparty risk represented by the exchange must be considered alongside the market risk of the position itself.

Portfolio risk is not determined by one individual trade. It is determined by the combined leverage across all open positions at the same time. It is this total portfolio risk that defines the real vulnerability to liquidation risk in the market as a whole.

Capital protection: a system, not intuition

Capital protection is not reduced to a single rule. It is built as a multi-layer system:

1. Position size – limiting the volume of each individual trade relative to capital.
2. Asset-level leverage – a separate limit for each instrument based on its volatility.
3. Total portfolio risk – a limit on the combined leverage across all open positions at once.
4. Exit levels – pre-defined points for closing positions during adverse market moves, rather than decisions made in a moment of panic.

Investment risk in margin trading is manageable only to the extent that this system is followed consistently — not selectively during calm periods.

Capital control must work the same way in a quiet market and during a sharp move, because it is sharp moves that test the strength of the system in practice, not in theory.

How this works in institutional management

At IQSF, capital control is built as an algorithmic system of limits.

Position size and leverage are calculated in advance based on the volatility of the asset, rather than being determined manually in the moment of an emotional decision.

This approach does not eliminate liquidation risk completely, but it turns it from an unpredictable event into a managed and pre-calculated probability.

The key principles of this approach are:

• leverage limits are defined by the algorithm, not by a trader in the moment;
• position size is recalculated when asset volatility changes;
• total portfolio risk is controlled at the system level, not at the level of a single trade.

This is not investment advice. It is an explanation of the mechanics of risk in margin trading — mechanics that every investor should understand before opening a leveraged position.