YAX’s inspected market table lists ETH/BTC for retail and professional investors.[6]
This review separates the available order book, a fiat conversion quote and a bank transfer. Each changes a different balance and can carry different costs.
Markets, order entry and execution roles
Sections ↑Different routes under the YAX account
| Route | Documented structure | What the distinction means |
|---|---|---|
| Spot exchange | ETH/BTC is the pair shown in the current pair table for retail and professional investors. | Trading changes the balance between ether and bitcoin; it does not itself establish a USD sale route.Source 6 |
| OTC Convert | Contract describes fiat/crypto transactions below USD 100,000 equivalent; YAX acts as principal. | Quote terms apply.Source 4 |
| OTC Block | Professional-only; at least USD 100,000 equivalent; YAX acts as intermediary to a product provider. | Separate product-provider relationship.Source 4 |
The homepage refers generally to fiat trading, while the withdrawal tariff retains a USDT row.[1][8]
Neither statement establishes that a corresponding order book is enabled. Treat the current market list and account permissions as the relevant evidence for the intended trade.
The web order guide explains that the interface displays the currencies paid and received and calculates indicative quantities for a market order. Those estimates are not a reserved price. A market order can consume several price levels, while a limit order constrains the worst acceptable price and can remain unfilled. A client should reconcile the eventual trade confirmation with the order instruction, rather than treating the preview as the completed transaction.[13][14]
Orders and current ETH/BTC parameters
| Control | Published rule | Trading consequence |
|---|---|---|
| Native order types | Market, limit, stop and stop-limit. | A stop becomes a market instruction; a stop-limit becomes a limit instruction. Triggering does not ensure a fill.Source 5 |
| Price and quantity increments | Tick: 0.000000001 BTC per ETH; quantity increment: 0.0001 ETH. | Prices and quantities must respect the pair’s increments.Source 16 |
| Minimum order | HKD 80 equivalent. | The minimum coin quantity varies with its HKD valuation.Source 16 |
| Maximum order | Retail: HKD 200,000 equivalent; professional: HKD 800,000 equivalent. | These are order limits, not a promised overall account exposure allowance.Source 16 |
| Execution band | Transactions outside ±20% of the last trade are not executed; affected remainder is cancelled. | A market order can be partially filled or rejected even when distant liquidity exists.Source 15 |
| Resting limit order | The limit-order guide says orders do not automatically cancel. | Check open orders explicitly; closing the browser is not a cancellation request.Source 14 |
For example, at an assumed last price of 0.05 BTC per ETH, a 20% execution band spans 0.04 to 0.06 BTC. This arithmetic explains the rule; it is not a current quote or a guarantee that any quantity is available inside that range. A sell stop can trigger in a falling market yet leave some exposure unsold if the available bids fall outside the permitted band.[15]
Commission and a reproducible cost example
Sections ↑The published spot commission is a flat 0.05% of each executed transaction, deducted in the cryptocurrency received. This is a five-basis-point trading charge. It is distinct from the price difference between buying and selling, slippage, withdrawal fees and the terms of an OTC conversion. A maker/taker distinction in an educational article does not by itself create a lower maker tier in this flat schedule.[7]
Illustrative ETH/BTC round trip
| Step | Assumption and calculation | Result |
|---|---|---|
| Buy | Buy 2 ETH at an assumed 0.05 BTC/ETH; pay 0.1 BTC. Fee: 2 × 0.0005 ETH. | 0.001 ETH commission; 1.999 ETH received. |
| Sell | Sell the entire 1.999 ETH at the same assumed price: 0.09995 BTC gross. Fee: 0.09995 × 0.0005 BTC. | 0.000049975 BTC commission; 0.099900025 BTC received. |
| Cost relative to initial BTC | 0.1 − 0.099900025 = 0.000099975 BTC. | 0.099975% of the initial BTC, before spread, price movement or transfer costs. |
The calculation reconciles both assets: the buy leaves 1.999 ETH, and the sale returns 0.099900025 BTC. Retain gross traded quantity, fee asset and net receipt as separate fields; a USD conversion is not needed to explain the difference between these coin balances.
The OTC contract permits ten seconds to accept a displayed quote, unless withdrawn earlier.[4]
The help index lists custody-fee arrangements, but the full notice was not retrievable; no zero-custody-fee claim is made.[20]
The spot commission should not be applied to an OTC quote without a matching commercial disclosure.
Deposits, bank verification and withdrawals
Sections ↑YAX’s dedicated fiat guide distinguishes the initial identity-verification payment from later funding. Online individual onboarding requires at least HKD 10,000 or USD 1,500 from a matching sole-name bank account. Joint accounts, third-party payment companies, credit cards and cash deposits are excluded in that guide. The ordinary currency minimums in the tariff below are therefore not a substitute for the larger onboarding payment.[10]
Published withdrawal amounts and charges
| Asset | Minimum withdrawal | YAX withdrawal fee | Deposit charge |
|---|---|---|---|
| BTC | 0.001 BTC | 0.0005 BTC | Zero |
| ETH | 0.0098 ETH | 0.0012 ETH | Zero |
| HKD | HKD 50 | HKD 5 | Zero; tariff deposit minimum HKD 0.01 |
| USD | USD 100 | USD 10 | Zero; tariff deposit minimum USD 2 |
A fixed transfer charge can be significant on a small balance. Using the displayed BTC tariff, a 0.0005 BTC fee equals 0.5% of a 0.1 BTC withdrawal amount, before any other adjustment. This is a separate calculation from the trading example. It explains why an economical trade followed by several small withdrawals can have a different overall cost from one consolidated transfer. It does not imply that delaying a withdrawal is preferable for every client.[8]
For bank withdrawals, YAX uses whitelisted accounts in the customer’s name that have already made a successful deposit. The fiat guide gives typical processing of one business day for HKD to Hong Kong banks and one to two business days for USD to Hong Kong banks, subject to bank procedures. A new destination is established through a deposit from that bank account. These are business-day banking windows, separate from continuous market access.[11]
The deposit guide requires the asset-specific address and network, warns of mismatch losses and notes that confirmation can take longer than a few minutes.[9]
The rules require customer-owned whitelisted addresses, internal review and applicable information-sharing checks for exchange transfers.[5]
An on-chain confirmation therefore need not coincide with the balance becoming available to trade.
Trust arrangements, insurance and balance treatment
Sections ↑Client fiat and virtual assets are held on trust through Sentinel & Guardian Prudential HK Limited. Ordinary custody gives no entitlement to interest, yield or distributions unless otherwise agreed.[4]
Custody evidence and practical limits
| Area | Published position | Meaning for the client |
|---|---|---|
| Associated entity | Sentinel & Guardian Prudential HK Limited; TCSP TC008994. | A distinct custody entity.Source 1 |
| Security certification | YAX claims ISO 27001 and ISO 27701. | Full certificate scope and current audit report were not reviewed.Source 1 |
| Insurance | Trading rules describe insurance covering at least 50% of client virtual assets held in cold storage. | This is a storage-based coverage statement, not a published per-customer reimbursement ceiling.Source 5 |
| Claims | Rules contemplate validated compensation claims following covered events. | Full exclusions, deductibles, aggregation and individual entitlement require the policy documents.Source 5 |
Storage-based coverage does not establish a personal reimbursement ceiling. The full policy, exclusions and claims process remain necessary for assessing a particular loss.
Verification, risk assessment and account limits
Sections ↑The homepage describes registration with an email address and valid Hong Kong identification.[1]
Verification adds identity, address, bank, facial and questionnaire checks. The KYC guide estimates 24 hours to one week after address documents, with further information possible.[12]
Registration alone does not complete admission. No exhaustive accepted-residence list was established.
Eligibility at different stages
| Stage | Documented requirement | Consequence |
|---|---|---|
| Identity and address | Personal details, government ID, facial verification and proof of address. | Wait for approval rather than treating a registered login as a funded trading account.Source 12 |
| Bank confirmation | Same-name account and the specified initial verification transfer. | A transfer that meets an ordinary funding minimum may still fail the onboarding requirement.Source 10 |
| Risk assessment | R4 or R5 under the trading rules. | Additional to identity checks.Source 5 |
Account exposure restrictions can prevent further purchases under the trading rules.[5]
Splitting an order does not establish permission to exceed the account’s approved exposure.
Support, security and transaction records
Sections ↑YAX official assistance
Scope Fiat guides describe 24/7 assistance; no universal resolution deadline.
For a delayed fiat payment, retain the account ID, bank receipt and withdrawal reference. The fiat guide directs customers to the bank and YAX support when a successful status is not followed by receipt. It also explains that rejected bank transfers can be returned with bank charges deducted. A platform status and a beneficiary-bank credit are separate events, so a support investigation needs the records from both ends.[11]
YAX’s privacy policy says it may verify identity before releasing personal information and recommends a unique password. The inspected public material did not establish a complete lost-authenticator recovery procedure or a fixed withdrawal hold following a security reset. A customer who loses access should ask for the account-specific recovery steps and keep that process separate from the release of funds. Do not infer instant cash availability merely because login access has been restored.[19]
The rules permit intervention including order cancellation and trading halts.[5]
No guaranteed phone-dealing substitute was established in the terms.[4]
During an interruption, reconcile an unconfirmed instruction before resubmitting it. Preserve the order identifier and timestamp to avoid a duplicate when only the screen response failed.
Hong Kong permissions and entity boundaries
Sections ↑Ownership and the account lifecycle
Sections ↑YAX identifies itself as wholly owned by UP Fintech Holding Limited, known as Tiger Brokers in Asia.[1]
Group ownership does not combine all group-account protections and cash arrangements. No comparable current YAX active-user count or trading-volume ranking was established.
The contract permits termination after twelve consecutive months of non-use and specifies five business days to withdraw after closure, subject to outstanding charges and investigation restrictions.[4]
That is an account-lifecycle rule, not a specified monthly inactivity charge. Arrange residual balances and save records while access remains available.
The privacy policy describes retention beyond account or transaction closure where legal obligations require it, referring generally to five to ten years across relevant jurisdictions. Retention by the firm does not promise continuing customer access to an online export. Save records before closure and establish how a later correction or historical statement can be requested.[19]
- Operator
- YAX (Hong Kong) Limited
- Exchange model
- Centralised
- Service scope
- Spot exchange with web/API access and separately documented OTC services. The inspected live-pair help table lists ETH/BTC.
- Client types
- Retail clients; Professional clients; Institutional clients
- Pricing publication
- Public and quoted pricing
- Pricing scope
- Published spot commission 0.05% in the asset received; OTC quotes and other account charges require separate review.
- Funding scope
- Selected on-chain assets plus USD/HKD transfers from approved same-name bank accounts. Fiat withdrawals go to previously verified accounts; bank and network processing can extend delivery.
- Custody and asset handling
- Custody through the associated entity identified below. Trading rules describe storage-based insurance coverage; full policy limits and exclusions were not established.
- Client eligibility
- Onboarding and risk assessment required. The pair page marks ETH/BTC for retail and professional investors. Homepage references valid Hong Kong ID; a complete resident-country matrix was not established.
- Support
- [email protected] and official Help Center; fiat guides advertise 24/7 support. No guaranteed resolution time or universal emergency telephone dealing route established.
- Authorisation and registration scope
- SFC-listed Hong Kong operator; YAX reports Type 1, Type 7 and AMLO permissions. Scope remains client- and product-specific.
Exchange metadata checked 21 Oct 2026Source 1Source 2Source 4Source 6Source 7Source 10Source 11
Covered contracting entities
API permissions, limits and operational records
Sections ↑YAX links its own REST and WebSocket API documentation. The distinction is useful: request/response calls retrieve data or submit actions, while streams can provide continuing updates. Neither connection type changes the customer’s approved markets, custody arrangement or need to reconcile a confirmed order with its execution. The integration should be designed around the authority actually granted to the account.[17]
API scope and integration controls
| Area | Documented capability | Practical consequence |
|---|---|---|
| Setup | Account profile/API settings configure key permissions and an IP whitelist. | Give an integration only the actions and network origins needed for its purpose. |
| Trading | Order query, submission, cancellation and modification endpoints. | A connection capable of reading prices is not automatically harmless if trading permissions are also granted. |
| Treasury functions | Documentation includes withdrawal and sub-account transfer endpoints. | Confirm whether these functions are enabled for the particular key and account before sharing credentials. |
| Rate budget | Default 120 weighted requests per minute; heavier calls consume more quota. | For weight 2 calls alone, the arithmetic ceiling is 60 calls per minute. |
| Limit response | Rejected requests and possible temporary IP restriction; Retry-After supplies the wait period. | Do not repeatedly resend a rejected request without observing the response. |
The API provides trade and account data for reconciliation.[18]
That access is distinct from a tax calculation or guaranteed report format. The public references did not establish automatic cancellation of existing orders when a key is revoked, or a native AI service authorized to manage the account. Treat key revocation, order cancellation and withdrawal approval as separate tasks unless documented otherwise.
Sources & further reading
- YAX — official company and service information YAX · Accessed 21 Oct 2026
- SFC list of licensed virtual asset trading platforms Securities and Futures Commission · Accessed 21 Oct 2026
- SFC public register — YAX (Hong Kong) Limited Securities and Futures Commission · Accessed 21 Oct 2026
- YAX Terms of Service YAX · Accessed 21 Oct 2026
- YAX Exchange Trading Rules Policy YAX · Accessed 21 Oct 2026
- Coin Pairs YAX · Accessed 21 Oct 2026
- Commission and Fees YAX · Accessed 21 Oct 2026
- Deposit and Withdrawal Fee YAX · Accessed 21 Oct 2026
- How to Deposit Virtual Assets YAX · Accessed 21 Oct 2026
- How to Deposit Fiat Currency into Your YAX Account YAX · Accessed 21 Oct 2026
- How to Withdraw Fiat Currency from Your YAX Account YAX · Accessed 21 Oct 2026
- KYC YAX · Accessed 21 Oct 2026
- Place Orders on the Web YAX · Accessed 21 Oct 2026
- Limit Order YAX · Accessed 21 Oct 2026
- Price Bands YAX · Accessed 21 Oct 2026
- Minimum Price Increment and Minimum Size Increment YAX · Accessed 21 Oct 2026
- API Reference — YAX Help YAX · Accessed 21 Oct 2026
- YAX Exchange API v1 reference YAX · Accessed 21 Oct 2026
- YAX Privacy Policy YAX · Accessed 21 Oct 2026
- YAX Help Center YAX · Accessed 21 Oct 2026
This profile reports dated public information, including exchange-published services and terms. It does not independently test or guarantee trading, custody, pricing or withdrawals. Inclusion is not an endorsement. Permissions and protections apply only to the named legal entity, service and client category; check the current official records and your contract.