Settlement risk: how much can the price move while a crypto payment confirms? Stellar vs Bitcoin, Ethereum, Solana and XRP

The problem: the price does not wait for the blockchain

If a business accepts a payment in a volatile coin, there is a gap between the moment the customer sends it and the moment the business can treat it as final. During that gap the coin's price keeps moving. Exchanges, payment processors and remittance companies handle this every day: they wait for a number of confirmations, and they price in the risk that the coin moves while they wait.

Two things decide how big that risk is:

1. How volatile the coin is over short periods.
2. How long the network takes to reach finality – the point where the transfer cannot be reversed.

Most comparisons look at only one of these. Speed comparisons quote transactions per second; risk comparisons quote daily volatility. We put the two together using 60 days of one-minute prices (3 September to 2 November 2026) for five networks that are often compared for payments.

How fast is "final"?

Each network reaches finality in a different way:

• Stellar closes a new ledger roughly every 5–6 seconds. Its consensus protocol (SCP) does not fork, so a transaction is final once its ledger closes.
• XRP Ledger closes ledgers every 3–5 seconds, also with deterministic finality.
• Solana gives an optimistic confirmation in under a second and full finality after about 13 seconds.
• Ethereum produces a block every 12 seconds, but a block is only finalized after two epochs – about 12.8 minutes.
• Bitcoin has no formal finality. A block arrives every 10 minutes on average and many services wait for six confirmations, about 60 minutes, before treating a large payment as settled.

So the settlement windows range from a few seconds to an hour – a factor of several hundred.

Per minute, XLM is the most volatile

Over every window we measured, XLM moved the most and BTC the least. In a typical minute XLM's 95th-percentile move was 0.21%, against 0.17% for XRP, 0.16% for SOL, 0.12% for ETH and 0.09% for BTC. Over a full hour the gap was the same: 1.56% for XLM against 0.71% for BTC.

If you judged only by volatility, Bitcoin would look like the safest coin to receive and XLM the riskiest. That is where finality changes the picture.

Over each network's own settlement time, the ranking flips

This chart measures each coin over its own settlement window. For the three fast networks we use the one-minute move, even though their finality is far shorter – a deliberately conservative upper bound, because our data does not go below one minute. For Ethereum we use 13 minutes, and for Bitcoin 60 minutes.

Even with that generous handicap for the fast chains, Stellar's 95th-percentile move during settlement (0.21%) is less than a third of Bitcoin's (0.71%) and about half of Ethereum's (0.44%). Bitcoin goes from the calmest coin to the one with the most price risk during settlement.

What it means in dollars

To make the numbers concrete, we estimated the price risk on a $10,000 transfer at the exact finality time. For the sub-minute chains we scale the one-minute move by the square root of time, a standard approximation (it is rough at very short horizons, so treat those figures as estimates).

In a 1-in-100 case – a move bigger than 99% of all windows in our sample – the value of the transfer changed by about:

• $8 for XRP (about 4 seconds)
• $11 for XLM (about 6 seconds)
• $12 for SOL (about 13 seconds)
• $81 for ETH (12.8 minutes)
• $129 for BTC (60 minutes, six confirmations)

A business that waits for one Bitcoin confirmation instead of six cuts the window to about 10 minutes, and the 99th-percentile move to 0.51% ($51 on $10,000) – still more than four times the estimated risk on Stellar.

Why this matters for payments

Stellar was designed for payments and remittances, and most real-world payment volume on it today uses stablecoins and anchored assets such as USDC rather than XLM. For those payments the price risk in this study does not apply at all. Stellar's built-in path payments also convert between assets inside a single ledger, so a sender can pay in one asset and the receiver can get another without holding a volatile coin in between.

Where a native coin is the payment – or the bridge between two currencies – the study shows why fast finality is valuable. The shorter the window between "sent" and "final", the less the price can drift, and the smaller the buffer a merchant or payment provider needs to price in.

Limits of this study

• Our data has a one-minute resolution. For Stellar, XRP and Solana, the true settlement windows are shorter than one minute, so we report both the conservative one-minute figure and an estimate.
• 60 days is a short sample. September and October 2026 included calm and stressed periods, but a crash or a squeeze could produce much bigger moves; the maximum one-hour move for XLM in our window was 8.9%.
• We measure exchange prices on Binance, not on-chain fills. Real payments may also face fees, spreads and slippage.
• Finality times are typical values under normal network conditions and can vary.

For live XLM levels and volatility ranges, see our Stellar market data.