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Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →A Bitcoin hedge can lose money to liquidation even when its spot and futures positions are designed to offset each other. If the spot coins and futures margin sit in separate accounts, the futures venue may assess only collateral within its own margin scope. A price move or margin increase can therefore trigger liquidation before the hedge has time to converge.
Why can a Bitcoin hedge be liquidated if the fund still owns spot?
Because owning an asset somewhere is not the same as having it available as collateral where a margin obligation is calculated. In a cash-and-carry trade, a fund might hold Bitcoin in a spot account while shorting Bitcoin futures and posting fiat collateral at a separate futures venue. Economically, the spot holding may offset some of the futures exposure over the intended holding period. Operationally, the futures venue may still treat the futures position as under-margined if the collateral in its own scope falls below its requirement.
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The Bank for International Settlements (BIS) describes the issue in its working paper Crypto carry: large spikes in carry can expose cash-and-carry positions with spot and futures held in separate accounts to forced liquidation before convergence. That is a description of a structural risk, not evidence that every fund or exchange experiences it.
How split collateral can turn a hedge into a forced sale
1. The trade has two legs, but margin is assessed within a scope
Suppose a fund holds spot Bitcoin in one account and shorts futures in another. The spot position may reduce the fund’s overall exposure to Bitcoin price changes, but it does not automatically become collateral for the futures position. The futures venue applies its margin rules to the assets and positions it recognizes within the relevant account or product scope.
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2. The futures account’s available margin falls short
If the futures position loses value, or the required margin rises, the venue may require more collateral. If the account does not meet that requirement, the venue’s liquidation process can act on the futures position even while the fund still owns spot Bitcoin elsewhere.
3. Selling spot to raise cash can weaken the hedge
A fund may sell some of its spot Bitcoin to raise cash for the futures loss. That can reduce the amount of spot held against the short futures exposure, leaving a less complete hedge. The BIS paper specifically notes that forced sale of part of the spot holding to meet the futures loss leaves less spot against the futures position.
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The operational trap is that the action used to meet a margin need can change the hedge itself. Liquidation may happen before the expected convergence, so the fund can be left with a smaller spot position, a changed futures position, or both.
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Cross-collateral or portfolio-margin features can allow eligible assets and positions to be considered together within a provider’s supported scope. They do not establish that collateral is shared across unrelated venues. Eligibility can depend on the asset, product, account, wallet, region, and governing terms.
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For example, Binance’s Portfolio Margin Pro description says it combines supported balances and positions across Cross Margin, USDⓈ-M Futures, and COIN-M Futures for joint equity and maintenance-margin calculations. Its page was updated January 2, 2026, refers to rules effective January 5, 2026, and warns that the FAQ may be outdated. That description should not be generalized to every account, product, or jurisdiction.
| Documented feature | What the cited documentation says | Scope to verify |
|---|---|---|
| Coinbase International Exchange eligible collateral | Eligible alternative crypto assets can support perpetual futures positions. The documentation specifies that a group of assets ceases to count as eligible collateral effective September 29, 2026. | Check the current eligible-asset list, exact terms, account eligibility, and regional availability; the supplied information does not identify the affected asset group. |
| Binance Portfolio Margin Pro | Supported balances and positions across Cross Margin, USDⓈ-M Futures, and COIN-M Futures are combined for joint equity and maintenance-margin calculations. | The page was updated January 2, 2026, references rules effective January 5, 2026, and says its FAQ may be outdated. Confirm current rules and account and regional eligibility. |
| Kraken Coin-M wallets | Each listed Coin-M asset has a separate wallet. Liquidation of one Coin-M wallet does not affect the other listed Coin-M wallets or the Multi-M wallet. | Confirm which assets and products are covered by the wallet rules that apply to the account. |
| Kraken Multi-M wallet | All assets in the Multi-M wallet are at risk in an account-wide liquidation. Unrealised profits on isolated positions cannot margin cross positions. | Check the account’s margin mode and current governing terms; wallet-wide exposure is not the same as cross-venue collateral access. |
These examples show why a provider-level label is not enough to determine whether a particular hedge is protected. Even within one provider, collateral treatment can differ between wallets and margin modes.
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How to assess liquidation risk in a split-account hedge
Before relying on an apparent offset between spot and futures, map the actual margin boundaries and liquidation rules. These questions are more useful than asking only whether an account offers “cross margin.”
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- Consolidation boundary: Which accounts, wallets, and instruments are included in one equity and maintenance-margin calculation? Do not assume separate accounts—or separate venues—are combined.
- Position offsets: Can the relevant spot and futures positions offset one another for margin purposes, or is the offset only part of the fund’s economic exposure?
- Margin trigger and liquidation process: What maintenance-margin threshold applies, what happens when it is breached, and which position or collateral pool can be liquidated?
- Margin mode interactions: Can isolated and cross positions offset one another? Kraken’s Multi-M documentation, for instance, says unrealised profits on isolated positions cannot margin cross positions.
- Eligibility and rule changes: Verify account, asset, product, and regional eligibility against current governing terms. Dated help pages can change, and a listed feature does not prove that it applies to every customer.
What the evidence establishes—and what it does not
The BIS paper supports the mechanism: separate-account spot and futures positions can be forcibly liquidated before convergence during large carry spikes, and selling spot to raise cash for a futures loss can reduce the spot quantity backing the hedge. The venue documentation illustrates that collateral scope and position treatment vary by feature and account structure.
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No current hedge-fund-specific prevalence or loss statistic for this exact split-collateral problem is established by these sources. The evidence supports a structural explanation and a due-diligence checklist, not a claim about how often funds encounter it or a recommendation for a particular venue.
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