XRP Lending Model Can Leave Depositors With 90% of a Bad Loan’s Loss Despite Large Reserves

A recent analysis of the XRP Ledger lending protocol demonstrates that the size of individual loans dramatically affects how much loss is passed to depositors, even when the total reserve is twice the amount of bad debt.

How the model works

The protocol pools assets in a vault and issues fixed‑term, uncollateralized loans through a broker. Depositors hold shares in the vault; their value declines when the vault’s backing assets suffer losses. Protection is provided by a reserve (CoverAvailable) and two cover rates: a minimum cover rate (CoverRateMinimum) and a liquidation cover rate (CoverRateLiquidation).

Key parameters in the base example

• Total broker debt: 1,000,000 tokens
• Reserve deposited: 200,000 tokens
• Minimum cover rate: 10%
• Liquidation cover rate: 10%

With these settings, the per‑default payout cap is 1,000,000 × 10% × 10% = 10,000 tokens.

Single large loan vs. multiple small loans

Two loan books were modeled:

1. One loan of 100,000 tokens – the default receives the full 10,000‑token cover, leaving a vault loss of 90,000 tokens.
2. Ten loans of 10,000 tokens each – each default draws a decreasing amount of cover (10,000, 9,900, …, 9,100), totaling 95,500 tokens of cover and leaving only 4,500 tokens of vault loss.

Both books start with the same reserve and debt, but the single‑loan structure results in a loss twenty times larger for depositors.

Impact of cover settings

Changing the liquidation cover rate alters outcomes dramatically:

• 5% liquidation rate: 95,000‑token loss for one loan, 52,250‑token loss for ten loans
• 10% (base case): 90,000 vs. 4,500
• 20%: 80,000 vs. 0
• 100%: 0 loss in both cases

Doubling the reserve to 400,000 tokens does not change payouts in the base case because the per‑default cap already limits payments.

What lenders need to consider

Prospective lenders must evaluate:

• The broker’s available reserve
• Both cover rates
• Current broker debt
• Distribution of loan sizes
• Borrower concentration and off‑chain contractual protections

The model assumes no repayments, recoveries, or additional cash flows, and it reflects the documented rules of the XRPL LendingProtocolV1_1 implementation as of release 3.3.0.