What happens to my Bitcoin loan if the Bitcoin price falls?

By Benjamin Whitby · Published 24 October 2026 · Updated 25 October 2026

The short answer

On Diamond Hands by GVNR, a falling BTC price lowers your loan's collateral ratio: the value of the BTC in your vault against the UCD you owe. Below 150%, the loan shows a warning, but nothing is sold and no payment falls due. Action is only taken below 110%, the liquidation threshold. Adding BTC or repaying UCD raises the ratio.

Key facts

Loans open at a minimum collateral ratio of 150%. The maximum LTV at opening is 66%.
Below 150%, the loan shows a warning in the app. If you have given an email address, you can also get an email. Nothing else happens to the loan.
If the collateral ratio falls below 110%, the loan is liquidated in full and you lose all the BTC in the vault. Only specified liquidators can trigger it, currently GVNR DAO.
You can add BTC at any time, and repay any amount of UCD up to the full debt.
You can withdraw part of your BTC only if the collateral ratio stays at or above 110% afterwards.
There are no monthly payments, so a price fall never creates a payment you have to make.

Why does a price fall matter for a Bitcoin loan?

On 22 October 2026, BTC ended the day down 3.3% and $259M of leveraged long positions were liquidated across 9 exchanges; on 23 October 2026, BTC was at about $80,800 (Liqwall). As Forbes notes, "When cryptocurrency prices decline, automated liquidations can trigger further selling, which places pressure on other borrowers and lending platforms" (Forbes).

A Diamond Hands loan is different in two concrete ways: there is no exchange margin call, and nothing is sold while the collateral ratio stays above 110%.

How does a price fall show up on my loan?

Your loan is measured by its collateral ratio. Your UCD debt does not change when BTC moves, but the value of the BTC backing it does.

Worked example (illustrative, using 50% LTV only as an example, not a recommendation): your BTC is worth $200 and your UCD debt, with the mint fee included, is 100 UCD. That is 50% LTV and a 200% collateral ratio.

No change: BTC worth $200, collateral ratio 200%. Nothing happens.
BTC down 25%: BTC worth $150, collateral ratio 150%. This is the warning threshold.
BTC down 35%: BTC worth $130, collateral ratio 130%. The warning shows; no action is taken.
BTC down 45%: BTC worth $110, collateral ratio 110%. The loan is at the liquidation threshold. Action is only taken if the ratio falls below 110%.

With BTC at about $80,800 as of 23 October 2026, that example loan reaches the warning level near $60,600 and the liquidation threshold near $44,440. Borrow more and those levels move closer to today's price. You choose how much to borrow, up to 66% at opening.

What can I do when the price falls?

You have three real responses in the Diamond Hands app:

Deposit BTC. Adding BTC to your vault raises the collateral ratio. You can add BTC at any time.
Repay UCD. You can repay any amount, from a small part of the debt to all of it, even once the loan is liquidatable. A repayment burns UCD on Ethereum and updates your debt and collateral ratio in that same transaction, so the ratio rises as soon as it confirms. The most consistent way to get UCD for repayment is to Swap through the PSM. After a full repay the loan stays open with zero debt, and you can Withdraw BTC after 6 Bitcoin block confirmations.
Do nothing. While the collateral ratio stays above 110%, no action is taken on the loan and no payment falls due.

Timing matters. A UCD repayment changes your ratio in one Ethereum transaction. Getting BTC back out waits on 6 Bitcoin block confirmations. If the price is falling fast and you hold UCD, Repay UCD is the quickest way to raise your ratio.

You cannot take BTC out freely while you owe UCD. Withdraw BTC works for part of your BTC only if the collateral ratio stays at or above 110% afterwards. The 150% line is for opening and warnings, not the withdrawal limit.

What happens below 110%?

If the collateral ratio falls below 110%, the loan is liquidated in full. Only specified liquidators can trigger it, currently GVNR DAO. The liquidator burns UCD equal to your full debt and takes ownership of the whole vault, with all its BTC. No BTC is returned to you, even if the vault was worth more than the debt.

What are the risks?

The main risk is liquidation, and it costs you all the BTC in the vault. A fast fall can take a loan from the warning level to below 110% before you act, so the warning is only useful if you are watching. Give an email address to be alerted.

At the end of the 12-month term, you can repay or extend the loan for 12 months. Each annual renewal costs 3% of the outstanding debt. If you do neither, the liquidation threshold starts rising from the first day after expiry: from 110%, compounding at 0.5% a day, and it keeps rising until the loan is liquidated or you renew. A loan that was safe the day before can become liquidatable without any price move.

Diamond Hands is still in Mainnet Beta, with a 100 UCD cap for now. The cap is expected to rise in the coming months.

Frequently asked questions

Will my loan be liquidated if Bitcoin falls?

Not unless the collateral ratio falls below 110%. Above that, a price fall changes the ratio but nothing happens to the loan.

What happens below a 150% collateral ratio?

The loan shows a warning so you can keep an eye on it. If you have given an email address, you can also be emailed. No action is taken on the loan.

How do I raise my collateral ratio?

Deposit BTC into your vault, or Repay UCD. A UCD repayment updates the ratio as soon as its Ethereum transaction confirms.

Can I repay part of the loan?

Yes. You can repay any amount of UCD up to the full debt, even once the loan is liquidatable. Repaying in full leaves the loan open with zero debt.

Do I have to make a payment when the price falls?

No. There are no monthly payments, and a price fall does not create one.

Can I withdraw BTC while the price is falling?

Only part of it, and only if the collateral ratio stays at or above 110% after the withdrawal. To take all your BTC out, repay the UCD in full first; the BTC is then withdrawable after 6 Bitcoin block confirmations.

Is liquidation partial or full?

Full. If the collateral ratio falls below 110%, the whole loan is liquidated. Only specified liquidators can trigger it, currently GVNR DAO.

What happens to leftover BTC after a liquidation?

None is returned. The liquidator burns UCD equal to your full debt and takes the whole vault, including any BTC worth more than the debt.

Does the 3% fee change when BTC falls?

No. The 3% mint fee is charged on the amount borrowed and added to your debt at mint, so you receive the full amount you borrow. It is not an APY or APR. Each annual renewal costs 3% of the outstanding debt.

Sources

All checked 25 Oct 2026.

Liqwall, "Crypto Market News for October 23, 2026", 23 Oct 2026: liqwall.com.
Forbes (Sean Stein Smith), "Crypto Lending Is Back, But So Are The Risks That Nearly Destroyed The Industry", 23 Oct 2026: forbes.com.

About the author

Benjamin Whitby

Protocol Lead, GVNR. LinkedIn

Benjamin Whitby discovered Bitcoin in 2013 and Ethereum in 2014, and has been building in crypto ever since. He has a background in capital markets and regulation and a degree in Physics from the University of Exeter. His focus is BTCFi, Bitcoin as collateral, BTC-backed stablecoins and how digital asset treasuries are reshaping credit. He's building at GVNR, home of Diamond Hands, where Bitcoin holders can borrow without giving up control of their UTXOs.

Diamond Hands is a decentralised protocol. Borrowing involves risk, including liquidation of collateral. Carry projections are illustrative model outputs, not return guarantees. Nothing on this site constitutes financial advice. Tax treatment depends on your circumstances, so take your own independent tax advice.