Kraken Synthetic Pairs let a Kraken Pro user trade between two assets even when Kraken does not operate a conventional order book for that exact pair. Behind one order, the platform uses compatible underlying markets and an intermediate asset to complete both legs together. The result can be more convenient than placing two manual trades, but it still has two sources of liquidity, a calculated execution price and costs that should be reviewed before confirmation.
Last reviewed: September 12, 2026. Supported pairs, quote assets, fees, order types, Market Price Protection rules and regional availability can change. Confirm the live order preview and Kraken Pro fee schedule before trading. This independent guide is educational and is not financial, tax or investment advice.
What is a Kraken Synthetic Pair?
A synthetic pair is a displayed relationship between two assets that do not need their own direct Kraken order book. Suppose a trader holds asset A and wants asset B, while active Kraken markets exist for A/USD and B/USD but not A/B. Kraken can calculate and execute a route from A to USD and from USD to B as one synthetic transaction.
The trader selects the desired pair and submits one order rather than managing two separate tickets. Kraken identifies synthetic pairs with an “S” indicator in Kraken Pro. The label is important: it tells the user that the displayed market depends on underlying pairs and should not be interpreted as a standalone order book.
A simple two-leg example
Imagine that a user wants to exchange ADA for SOL and the relevant underlying markets are ADA/USD and SOL/USD. The conceptual route is:
ADA → USD → SOL
If ADA sells for $0.75 and SOL can be purchased for $150, the simplified cross-rate is 200 ADA for 1 SOL before fees, spread and rounding. The interface can express that relationship as ADA/SOL even though execution relies on the two USD markets.
This calculation is illustrative, not a live quote. Actual orders interact with available depth at several prices. The first leg can fill across multiple bids, while the second consumes multiple offers. The final amount therefore depends on order size and both books at the same moment.
Why exchanges do not list every direct pair
With hundreds of supported assets, listing every possible combination would create thousands of separate order books. Many would have little activity, wide spreads and unreliable prices. Concentrating liquidity in major quote markets can produce deeper books than dividing traders across every possible pair.
Synthetic pairs reuse those deeper markets to create additional conversion routes. They expand the combinations visible to users without pretending that a new pool of liquidity exists for each combination.
What “atomic” execution means here
Kraken describes the synthetic transaction as atomic: the two required legs are handled together rather than leaving the trader with only the intermediate asset because the second manual order was forgotten or failed. The user receives one combined result in the interface and one corresponding history entry.
Atomic does not mean free, instant under every condition or guaranteed at the first displayed price. It describes the linked execution behavior. Orders can still face insufficient liquidity, price protection, rejection or other platform rules. Traders should read the final status rather than assuming that clicking once guarantees completion.
Synthetic pair versus two manual trades
| Feature | Kraken Synthetic Pair | Two manual trades |
|---|---|---|
| Order tickets | One order for the requested asset pair. | One sell and a separate buy order. |
| Intermediate asset | Used by the route but not managed as a separate step. | Received and held between orders. |
| Execution coordination | Underlying legs are executed as one atomic operation. | The market can move before the second order is placed. |
| Fee display | One consolidated taker fee under current Kraken rules. | Each trade has its own fee calculation. |
| Order control | Simpler, with controls supported for the synthetic route. | More control over the price and timing of each leg. |
| History | Presented as one synthetic trade. | Two separate trade records. |
A manual route may be preferable when a trader wants limit-order control over each leg or is willing to wait for maker execution. A synthetic route prioritizes a coordinated one-step result and is charged according to the current product rules shown before submission.
How Kraken calculates a synthetic price
The displayed cross-rate is derived from the prices available in the underlying markets. If the route uses A/USD and B/USD, the relationship between their executable prices produces the A/B quote. Because bids and asks differ, the calculation must use the relevant side of each order book rather than the last traded price.
For a market order, the system also considers depth. A small order may fill close to the best available levels. A larger order consumes more liquidity and may produce a less favorable average. This is why the chart, ticker or estimated rate can differ from the completed price without indicating an arithmetic error.
Spread, slippage and route cost
The total economic cost is not limited to the fee displayed by the exchange. Each underlying market has a bid-ask spread. A routed trade effectively crosses the relevant side of both books, and market movement can affect the executable quantities.
- Fee: the explicit amount charged according to the applicable Kraken Pro tier and product rules.
- Spread: the difference between available buying and selling prices in each underlying book.
- Slippage: the difference between an estimate and the average price obtained as the order consumes liquidity.
- Rounding: small quantity adjustments caused by asset precision and minimum increments.
- Opportunity cost: the possible difference from waiting for maker fills through manual limit orders.
Compare the final amount received, not only a headline fee percentage. A route with a modest explicit fee can still be expensive when one underlying market is thin.
How the consolidated fee works
Kraken states that a synthetic transaction is charged one consolidated taker fee rather than exposing two separate trade fees to the user. The applicable rate should be taken from the live preview and current fee schedule. Fee tiers can depend on account activity or other eligibility rules and may change.
“One fee” does not mean Kraken ignores the two underlying markets when pricing the trade. It describes how the fee is presented and recorded. Spreads and depth still influence the route. Never calculate expected proceeds by subtracting only the visible percentage from a stale midpoint price.
Why Synthetic Pairs use taker pricing
A synthetic order needs executable liquidity in both underlying markets to coordinate the conversion. That behavior differs from resting a new order on one book and waiting for someone else to trade against it. Kraken therefore describes the current synthetic execution with a consolidated taker fee.
A trader focused on maker rebates or lower maker rates should compare a manual two-leg strategy. That strategy introduces timing and partial-fill risk: the first order may complete while the second does not, leaving exposure to the intermediate asset.
What the “S” indicator tells you
The “S” displayed beside a pair in Kraken Pro identifies it as synthetic. Check this marker before using chart data, estimating liquidity or comparing the pair with another exchange. The apparent pair may not have its own visible order book because its price and execution are composed from underlying markets.
If the symbol is absent or the product interface changes, open the market details and verify its status. Do not rely on an old screenshot: pair coverage and labels can evolve as direct markets are added or removed.
Market Price Protection
Kraken applies Market Price Protection to market orders on Synthetic Pairs. A price-protection mechanism is intended to prevent execution too far from a reference range when liquidity changes sharply. It can cause all or part of an order to remain unfilled or be rejected rather than completing at an extreme price.
This is a guardrail, not a promised price. It does not remove ordinary spread or slippage within the permitted range, and it cannot make a thin market deep. Users should check the order outcome and remaining balance after every protected order.
How to identify and place a synthetic trade
- Open Kraken Pro through the official website or verified application.
- Search for the asset you hold and the asset you want to receive.
- Check whether the selected pair carries the current synthetic “S” marker.
- Open the market details and confirm the base and quote asset direction.
- Choose a supported order type and enter a small quantity first.
- Review the estimated conversion, consolidated fee and total received.
- Check both assets for available liquidity and recent volatility.
- Submit the order only after verifying the direction and amount.
- Wait for the final status instead of submitting a duplicate order.
- Review the single synthetic record and resulting balances in history.
The exact menu and supported controls can vary between Kraken Pro web, mobile and desktop products. Follow the labels in the authenticated interface rather than an unofficial tutorial asking you to install software.
Market order and limit-order considerations
A market order prioritizes immediate execution against available underlying liquidity, subject to Kraken’s protections. It does not guarantee the ticker price. A supported limit order introduces a price boundary, but the synthetic route can execute only when both legs can satisfy the required relationship.
Before using any order type, confirm how the limit is expressed, what happens to an unfilled quantity and whether time-in-force settings are supported. Do not infer rules from a conventional direct pair. The product’s current order ticket and documentation are authoritative.
Partial fills and rejected orders
Liquidity can disappear between viewing a quote and submitting an order. Minimum quantities, precision rules, price-protection boundaries or temporary market status can also prevent completion. An atomic route is designed to avoid leaving the user with an unintended intermediate balance, but the requested trade may still fail to execute as planned.
If an order is rejected, do not repeatedly increase tolerance without investigating. Recheck pair status, order size, balances and underlying liquidity. Divide a large order only when the additional executions and fees have been considered.
Why the chart can be misleading
A synthetic chart represents a calculated relationship between assets. It may be useful for studying relative performance, but executable prices still come from the underlying books. Low activity in one route, differing trading hours for tokenized assets or sharp movement can make a historical line look smoother than the actual cost of entering and exiting.
Inspect both underlying markets when execution quality matters. Compare their spreads, depth and recent volume. A synthetic pair is only as usable as the weakest required leg.
Synthetic Pair versus Kraken Convert
| Question | Synthetic Pair in Kraken Pro | Kraken Convert or simple trade |
|---|---|---|
| Main audience | Users working in the Pro trading interface. | Users prioritizing a simplified conversion flow. |
| Pricing view | Market-based order controls and synthetic-pair identification. | A quoted or simplified preview under current product rules. |
| Fee model | Current consolidated taker fee and Pro tier rules. | Costs shown in the conversion preview. |
| Execution detail | Designed around underlying Kraken Pro markets. | Less emphasis on market-route mechanics. |
| Best comparison | Final received quantity after all costs. | Final received quantity after all costs. |
Product names and pricing can change. Open both previews at approximately the same time for a small hypothetical quantity. Do not confirm either transaction merely to discover its final cost.
Synthetic Pair versus a DEX aggregator
A decentralized exchange aggregator searches onchain pools and routes a wallet transaction through smart contracts. The user may pay network gas, approve tokens and accept smart-contract, MEV and bridge risks. A Kraken Synthetic Pair is an internal Kraken Pro trading feature using exchange markets and account balances.
Both approaches can connect assets without a conventional direct pair, but the custody, settlement, costs and trust assumptions are different. A synthetic Kraken trade is not an onchain atomic swap and does not provide self-custody merely because the route is described as atomic.
Tax records and the hidden intermediate leg
A single interface entry does not automatically mean a tax authority views the transaction as one non-taxable action. Exchanging one cryptoasset for another can be a disposal in many jurisdictions. The underlying route, local rules and Kraken export format may affect recordkeeping.
Save the trade timestamp, assets, quantities, fee, account currency and available Kraken export. Check whether tax software imports the synthetic record correctly and avoids creating an unexplained intermediate USD balance or duplicate trades. Seek qualified advice for the user’s jurisdiction.
When a Synthetic Pair may be useful
- You want to move directly between two supported assets in one order.
- No conventional direct Kraken order book exists for the pair.
- You prefer not to manage exposure to an intermediate asset.
- The preview is competitive with manual alternatives.
- The order is small relative to depth in both underlying markets.
- A single trade-history entry simplifies reconciliation.
When two manual trades may be preferable
- You want to place maker limit orders on both underlying books.
- You need precise control over the timing of each leg.
- You are comfortable temporarily holding the intermediate asset.
- One underlying leg has limited depth at the desired moment.
- Your accounting workflow requires separate transactions.
- A comparison shows a better expected result after all costs.
Manual execution creates new risks. The first leg can fill while the market moves against the second, and partial fills can leave several small balances. Convenience and control should be compared using the same order size and current market data.
Large-order checklist
- Confirm the pair is synthetic and identify likely underlying markets.
- Check depth on both legs, not only the displayed synthetic quote.
- Estimate the average result for the complete quantity.
- Compare the synthetic preview with two manual orders and Convert.
- Review the current fee tier and market-protection rules.
- Consider splitting the order without creating excessive fees or market signaling.
- Avoid periods of scheduled maintenance or major news when possible.
- Record the decision and expected quantity before submission.
- Verify final fills and balances immediately afterward.
Common mistakes
- Assuming the synthetic pair has an independent order book.
- Reading the last price as a guaranteed execution price.
- Looking at liquidity for only one underlying asset.
- Interpreting one consolidated fee as the complete economic cost.
- Confusing atomic internal execution with an onchain atomic swap.
- Submitting the reverse base-and-quote direction.
- Repeating an order before checking its final status.
- Ignoring the tax consequences of crypto-to-crypto disposal.
- Using an old list of supported pairs or quote assets.
Security precautions
Synthetic Pairs do not require a separate wallet, plugin, API key or “routing activation” payment. Access the feature only through authenticated Kraken Pro products. Treat a message claiming that a manual transfer is required to unlock a pair as fraud.
- Verify the Kraken domain or official application publisher.
- Use a unique password and phishing-resistant authentication.
- Review active sessions before significant trading.
- Never share an MFA code with “trade support.”
- Do not install an extension promising additional synthetic pairs.
- Confirm withdrawals separately after the trade; trading does not verify an external address.
Frequently asked questions
Does a Kraken Synthetic Pair have its own order book?
Not in the conventional sense. Its displayed price and execution are composed from compatible underlying Kraken markets.
How can I recognize a synthetic pair?
Kraken says synthetic pairs carry an “S” indicator in Kraken Pro. Check current market details because interface labels can change.
Will I temporarily receive the intermediate asset?
The product is designed to coordinate both legs atomically and present one synthetic transaction rather than requiring the user to manage an intermediate balance.
Does Kraken charge one fee or two?
Kraken currently describes one consolidated taker fee for the synthetic transaction. Verify the exact rate and estimated received quantity in the live preview.
Can a synthetic trade have slippage?
Yes. Both underlying order books have spreads and finite depth. Market Price Protection limits certain extreme execution but does not guarantee the first displayed rate.
Is this the same as Kraken Convert?
No. Synthetic Pairs are identified inside Kraken Pro and use its market infrastructure and applicable fee rules. Compare the final quote and product terms rather than assuming either route is always cheaper.
Is a Kraken Synthetic Pair an onchain swap?
No. It is an exchange-account trade executed through Kraken’s internal market infrastructure, not a self-custody transaction routed through DEX smart contracts.
Can I use maker fees on a synthetic pair?
Kraken describes a consolidated taker fee for current synthetic execution. Traders seeking maker execution should investigate separate limit orders and accept the risks of a manual two-leg route.
Why did my synthetic order not complete?
Possible causes include insufficient balance or liquidity, minimum size, precision rules, pair status and Market Price Protection. Review the exact rejection message through official Kraken support channels.
Final takeaway
Kraken Synthetic Pairs turn a two-leg conversion into one coordinated Kraken Pro order. They can reduce manual steps, intermediate-asset exposure and fragmented history, but they do not create new liquidity or remove trading costs. The final outcome still depends on the spread and depth of both underlying markets, the applicable consolidated fee and current protection rules.
Check the “S” marker, compare the complete amount received and use a small order when testing the feature. For current pair coverage and mechanics, consult Kraken’s official Synthetic Pairs announcement and the live Kraken fee schedule.