Four Things That Did Not Happen to Self-Custodial Bitcoin Borrowers in the June Crash

Bitcoin had an ugly first week of June 2026 — down from above $72,000 to under $62,000 in a few days, with billions in leveraged longs liquidated and ETF outflows piling on. Markets like that generate a familiar set of horror stories. The interesting thing about borrowers using a code-enforced, self-custodial loan is what they didn't experience. Here are four of them.

1. Their loan didn't get more expensive

On a lot of crypto-lending products, a crash and a rising borrowing cost arrive together — variable rates and funding costs spike exactly when you're already stressed. A Money Protocol vault charges a one-time fee when you mint BPD (the dollar-pegged stablecoin) against your Bitcoin, and 0% interest after that. The debt is fixed. A loan opened in May was the same size in June. Whatever else the crash did, it didn't quietly raise the cost of carrying the position.

2. Nobody called them to demand a top-up

There was no margin desk on the phone, because there's no lender to protect. When you open a vault you lock RBTC (Bitcoin on the Rootstock network) and mint BPD against your own collateral — the protocol isn't lending you someone else's dollars. What governs the position is a published 110% minimum collateral ratio, enforced identically on every vault by code. Your ratio falls if Bitcoin falls, and below 110% a vault is liquidated automatically. It is a known, mechanical line you can plan around, not a discretionary call from a counterparty changing the terms mid-crash.

3. No one froze their withdrawals

This is the 2022 ghost, and it's the one that actually bankrupted people. Custodial lenders that had rehypothecated deposits hit the brakes on withdrawals, then filed for bankruptcy. A self-custodial vault has no withdrawal button for a company to disable, because no company is holding the collateral — the smart contract is, and you can verify it on-chain. Repay your BPD, reclaim your Bitcoin. There is no human in the loop with the power to say not right now.

4. The stablecoin didn't quietly break

Sell-offs are when pegs get tested. BPD holds its dollar through redemptions: anyone can swap BPD with the protocol for $1 of RBTC, pulled from the lowest-ratio vaults first. If BPD slips under $1, arbitrageurs buy it cheap, redeem for a full dollar of Bitcoin, and that buying pressure pushes it back. The peg is held by math anyone can act on, not by a company's promise to be holding reserves it may or may not have.

The part that can happen, stated honestly

To be clear, a vault is not immune to the market:

  • If your collateral ratio breaks 110%, you are liquidated — a real loss of collateral.
  • In a severe, market-wide crash, Recovery Mode can raise the effective bar to a 150% system-wide ratio, so safe in calm markets is not the same as safe in a crash.
  • Stability-pool depositors (the users who absorb liquidations in exchange for discounted Bitcoin plus MP rewards) take on Bitcoin price exposure.
  • Smart-contract risk applies to any on-chain position.

The protections here are structural, not a guarantee. The way you use them is to open with a cushion sized for a bad week.

The point

The June crash was a reminder that with leverage and counterparties, a down market reaches into your position and changes it. With a fixed-debt, self-custodial, code-enforced loan, far less of that is possible — your debt is fixed, the line is public, your keys stay yours, and the peg is defended by arbitrage. For a long-term holder, that's the entire case for borrowing instead of selling: the moment you'd least want to sell Bitcoin is the moment this structure is built for.

Full mechanics live at docs.moneyprotocol.co. When you're ready, you can borrow against Bitcoin at 0% interest and keep custody the whole time.

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