Automated liquidation has been one of the most destructive forces in crypto markets. Portfolio margined loans without auto-liquidation represent a fundamentally better structure for institutional borrowers.
October 10, 2025 — a worked example
If you want to understand why automated liquidation is the problem, look at what happened on the evening of 10 October 2025.
A tariff announcement hit the wires around 16:30 ET. Within 25 minutes, non-BTC and non-ETH prices were down roughly 33%. Over the next 24 hours, more than $19 billion in leveraged positions were forcibly closed — the largest liquidation cascade in crypto history, nine times bigger than any previous single-day wipeout. 1.6 million trading accounts were liquidated. Some altcoins dropped 70–90%. A few briefly printed near zero on thin-liquidity wicks.
None of that was caused by fundamentals. It was caused by mechanics.
Prices fell through the first band of liquidation thresholds, automated engines started force-closing positions, those sales pushed prices lower, which tripped the next band. BTC order book depth collapsed by more than 90%. Binance used $188M of its insurance fund. When that wasn't enough, automatic deleveraging (ADL) kicked in, force-closing profitable positions on the other side of the book to keep the venues solvent.
Read that again. Some of the best-hedged traders saw their winning shorts involuntarily closed — turning carefully constructed neutral books into naked long exposure at the worst possible moment. Traders who'd done everything right got ADL'd because the exchange needed liquidity.
This is the system every leveraged crypto trader operates inside. The question is whether your borrowing facility forces you to live with it.
What automated liquidation does in stress
In calm markets it protects the lender from default. In stressed markets, four things go wrong:
The liquidation price isn't where you think it is. When the order book thins and spreads blow up, the "market price" the engine marks against is wildly worse than the price you'd get in a functioning market.
You can't intervene. By the time you see the margin call, the position is already being market-sold into a broken order book. Exchange UIs freeze during these moments — Binance, Coinbase, and Robinhood all had outages on October 10.
Your hedges get picked off. In a cascade, the weakest asset drags the whole portfolio down, and hedges that were mathematically sound get liquidated anyway.
ADL finishes the job. If the cascade threatens the exchange itself, profitable positions on the other side of the trade get closed. You stop being a trader with a position and start being a number in the exchange's solvency calculation.
All four showed up on 10 October. Professional desks running 10–20x neutral strategies were wiped out — not because their strategies were wrong, but because the liquidation machinery didn't care about their P&L.
Portfolio margining, done properly
Portfolio margining is the right answer to capital efficiency. Instead of blunt per-position margin rules, the lender calculates required collateral against the actual risk of the whole book. A BTC long hedged by a BTC perp short isn't two leveraged bets — it's a basis trade, and the margin requirement reflects the net risk.
Same structural logic as TradFi prime brokerage. What matters in crypto is execution: markets are faster and less forgiving, so the lender has to measure the book continuously, understand cross-venue hedges, and apply haircuts that reflect what actually happens in stress.
Why "no automated liquidation" is the differentiator
The killer feature isn't portfolio margining by itself. It's portfolio margining without automated liquidation on the facility.
When your collateral ratio deteriorates, the lender doesn't flip a switch that market-sells your positions into a broken book. You get a margin call — a conversation. You can post more collateral. You can reduce positions intentionally, picking which legs to unwind. You can ride out a volatility spike that was going to mean-revert anyway.
This is how professional lending has worked in TradFi for decades. Prime brokers don't auto-liquidate clients during an equity flash crash — they make the call, and the client responds. The relationship is underpinned by credit assessment and trust, not by a stop-loss script.
What this means on a day like October 10:
- A trader on exchange margin with a hedged book got liquidated in the cascade, legs closed at the worst prints of the day, hedges stripped by ADL.
- A trader on a portfolio-margined facility with no auto-liquidation got a margin call from their prime broker, added collateral or reduced exposure selectively, and was still in business on Monday.
Same leverage. Same strategy. Completely different outcome.
What this requires from the lender
A lender can only offer this if they've built the infrastructure to understand the risk at the same speed as the market. Three things have to be in place:
Real-time portfolio-level risk. Every position on every venue in a unified ledger, marked to live prices, stress-tested against the scenarios that played out in October.
Judgement, not just code. A margin call decision is a credit decision. The lender has to distinguish a trader whose book is fundamentally broken from one caught in a cascade that will mean-revert.
Execution capability if needed. If a position really does need to be unwound, the lender has to do it well — using their own infrastructure and venue relationships. Panic-market-selling into a flash crash isn't doing the borrower any favours.
That combination is what makes "no automated liquidation" a credible offer rather than a marketing line.
How Bequant structures this
Bequant provides portfolio-margined undercollateralised lending through its institutional prime services facility, operating from Malta (Bequant Pro, MFSA-regulated CASP, MiCA authorisation in process) and Seychelles (Bequant Prime). The facility is built around the specific failure modes October exposed:
Portfolio-level margin via RiskQuant. The risk engine measures the book continuously against live prices, cross-venue hedges, concentration, and stress scenarios. A basis trade gets treated as a basis trade. Capital efficiency is real, but risk is measured honestly.
No automated liquidation on the facility. Margin calls are worked through the Bequant risk and credit team — not by a stop-loss engine firing into a broken order book. Clients can add collateral, reduce positions selectively, or restructure.
Native exchange-level leverage capped at 3x. Portfolio margining at the facility level, but native leverage at each venue capped to keep clients out of range of exchange liquidation engines and ADL. Capital efficiency lives at Bequant, where it's actually managed — not on the exchange, where one wick can destroy a hedged book.
DMA execution on the same stack. If a position needs to be adjusted, the same DMA infrastructure that runs client orders runs the adjustment — across CEXs and DEXs.
Embedded in the full prime services offering. Portfolio margined lending sits next to market making, OTC, allocation of capital, and capital introduction on the same operational stack.
For institutional borrowers who lived through October 2025, the question isn't whether a facility without automated liquidation is worth it. It's whether any serious trading business can afford to keep running on one that still has it.
Bequant is an institutional prime services provider for digital assets, operating from Malta (Bequant Pro, MFSA-regulated CASP, MiCA authorisation in process) and Seychelles (Bequant Prime). Services include portfolio margined lending, market making, DMA execution, cross-venue risk management through RiskQuant, allocation of capital, and capital introduction. To discuss a lending facility, get in touch with the Bequant institutional team.