Leveraged products dominate trading volume, and the risk machinery behind them is what determines what happens when markets move sharply.
Margin
Collateral posted against a position, with maintenance requirements that must be met continuously.
Which is monitored in real time rather than periodically.
Falling below maintenance triggers liquidation of the position.
Cross and isolated margin
Whether the whole account balance backs a position or only allocated collateral.
Which determines whether one position's loss can consume the entire account.
Isolated margin limits the damage and requires more active management.
The index price
Liquidations are triggered against a composite price from multiple sources rather than the venue's own last trade.
Which prevents manipulation of a single venue from triggering liquidations.
Index composition and update frequency are published and vary between venues.
Liquidation process
The venue closes the position, generally through a liquidation engine.
Which may execute into the order book or through a dedicated mechanism.
Partial liquidation, closing only enough to restore margin, is offered by some venues and reduces damage.
Insurance funds
Reserves absorbing losses where liquidation executes worse than the bankruptcy price.
Which prevents shortfalls falling on other traders.
Fund balances are generally published and are watched during volatile periods.
Auto-deleveraging
Where the insurance fund is insufficient, profitable opposing positions are closed to balance the book.
Which is deeply unpopular and is the mechanism of last resort.
Venues publish ranking systems indicating who would be affected first.
Funding rates
Periodic payments between long and short holders keeping perpetual contracts near spot.
Which means holding a position carries a variable cost.
Extended high funding indicates crowded positioning and precedes unwinds.
Cascades
Liquidations push prices, triggering further liquidations.
Which produces the sharp moves characteristic of these markets.
Open interest and leverage concentration are the indicators watched for cascade risk.
For participants
Understanding the venue's specific rules matters more than the strategy, since the rules determine what happens at the worst moment.
Position limits
Caps on position size relative to open interest or to venue capacity.
Which prevents a single participant becoming a systemic risk to the venue.
Limits are generally tiered, with higher limits requiring lower leverage.
Leverage tiers
Maximum leverage decreases as position size increases.
Which reflects that large positions are harder to liquidate cleanly.
This is standard across major venues and the specific tiers differ.
Mark price versus last price
Unrealised profit and loss is calculated from a mark price derived from the index.
Which prevents brief price spikes on the venue from triggering liquidations.
Understanding which price drives which calculation prevents a common source of confusion.
Options and margining
Portfolio margining accounts for offsetting positions rather than margining each separately.
Which improves capital efficiency and requires more sophisticated risk systems.
Regulatory status
Leveraged products for retail participants are restricted or prohibited in several jurisdictions.
Which reflects documented retail loss rates in similar products.
This is description of mechanism rather than encouragement to trade these instruments.
Settlement
Contracts settle in the base asset or in a stable-value asset depending on the product.
Which affects the profit and loss profile of a position.
Inverse contracts settled in the underlying behave non-linearly, which catches participants out.
Fee structures
Maker and taker fees, funding payments and liquidation fees.
Which compound significantly for active positions.
Liquidation fees are a meaningful additional cost that is frequently overlooked.
Venue transparency
Publication of insurance fund balances, liquidation data and index composition.
Which varies substantially and is a reasonable selection criterion.
Venues publishing detailed liquidation data allow independent assessment of their risk systems.
Decentralised derivatives
On-chain venues implement the same mechanisms in contracts.
Which makes the rules verifiable and exposes them to the constraints of block times and oracle latency.
Participant reality
Published data from several venues indicates most leveraged retail participants lose money over time.
Understanding your venue
Read the liquidation methodology, the index composition, the insurance fund policy and the deleveraging rules.
Which are published and determine what happens at the worst moment.
This is description of how these systems work rather than any recommendation to use them.
The structural summary
Margin, index pricing, liquidation engines, insurance funds and deleveraging form a chain, and each link determines what happens when the previous one is insufficient.
Which is worth understanding before, rather than during, a volatile period.
Position sizing
The relationship between leverage and the price move required to liquidate is arithmetic.
Which is worth calculating explicitly before opening a position rather than discovering afterwards.
High leverage means small adverse moves are sufficient, and volatility in these markets is not small.
A closing observation
The machinery described here is invisible during ordinary conditions and determines everything during the twenty minutes a year when it matters. That is precisely why it is worth reading the documentation before those twenty minutes arrive.
Every venue publishes it, and almost nobody reads it until after a liquidation.