Wallet & Transactions
What is a crypto wallet?
A crypto wallet holds the public and private keys used to manage cryptocurrency balances. Transactions are recorded on the blockchain.
There are two main types: hot and cold. Cold wallets, such as paper or hardware wallets, stay offline: they are more secure but harder to use. Hot wallets are connected to the internet: they are convenient for frequent use and offer more features. Most crypto platforms use both.
How does the custody management work?
By default, HollaEx exchanges use the built-in HollaEx exchange wallet, designed for exchange operations, with encryption and secure key storage. You can also connect your own custody provider. Custom custody integrations are discussed with the HollaEx team.
How are wallets being managed?
Every HollaEx exchange comes with a built-in wallet, designed for exchange businesses. It secures exchange funds and automatically processes incoming and outgoing blockchain transactions between your exchange and users' wallets. Its protections include two-factor authentication, DDoS protection and encryption.
Operator Controls shows all user accounts and balances, and Operator Controls → Treasury → Exchange Wallet shows the exchange's financial summary and balances.
For security settings, see:
→ Operator Controls: Configuration
Can I connect my own crypto wallet to my exchange?
You can connect your own custody provider instead of the default HollaEx custody. Custom custody integrations are discussed with the HollaEx team.
My user deposited some funds into his wallets but it's not showing in his wallet.
On your exchange, go to History → Deposits, click Check deposit status and enter the transaction details in the pop-up. Once submitted, the deposit is processed automatically.
If the missing deposit is XRP or XLM with a destination tag or memo, add the tag or memo to the address field in this format: <address>:<tag/memo>, for example rGcSzmuRx8qngPRnrvpCKkP9V4njeCPGCv:858145632.
This only works for deposits, not withdrawals.
See also the forum post: https://forum.hollaex.com/t/missing-deposit-to-the-exchange-account/726
Can I use a different wallet custody such as BitGo and connect that to my exchange?
Custom custody integrations with other providers are discussed with the HollaEx team. See Custody of Exchange Funds for the custody options available and how to request another provider.
What is a crypto bank?
While traditional bank may hold fiat currency only, a crypto bank manages digital assets such as Bitcoin, Ether, Tether and fiat currency.
How will the platform perform if there are a large number of users?
HollaEx uses a microservices architecture that scales with your user base and transaction volume. You can see the platform's performance on the live HollaEx Pro exchange:
→ https://pro.hollaex.com/trade/btc-usdt
How does the platform handle trade execution, order management, and market data?
- Order matching: the engine uses a standard central limit order book (CLOB) and matches buy and sell orders by price-time priority.
- Pair-specific engine: each trading pair typically has its own engine, for scalability.
- In-memory order book: active orders are kept in memory for fast matching.
- Atomic matching: trades are matched and settled atomically, preventing race conditions.
It supports limit, market and stop-loss orders, plus options such as post-only. The trading engine runs on the HollaEx Network, which also gives your exchange access to shared liquidity. Market data is streamed in real time over WebSocket.
Does your platform support advanced order types beyond basic buy/sell? If not, can additional order types be integrated via customization or plugins?
It supports limit, market and stop-loss orders, and options such as post-only.
How does your platform provide market data and real-time feeds to users?
Through WebSocket streaming. Users and apps receive live updates on trades, order book changes, prices and other market events. See Real-time Data.
Does the platform support Over-the-Counter (OTC) trading? If so, explain how users or administrators can access this functionality (e.g., OTC desk interface or API).
Yes. An OTC broker is included:
Deals can track prices from other exchanges (such as Binance or Kraken), so you don't have to manage prices continually. Liquidity pools in Operator Controls → Liquidity are replacing per-pair OTC deals; see Operator Controls: Liquidity.
How is trading history presented to users?
Users see all their trades, orders, deposits and withdrawals on the exchange's History page, and their account performance through profit and loss tracking.
Does your platform offer a quick trade interface for simple conversions? If so, explain how conversion pricing is determined and any limitations.
All exchanges have a simple Quick Trade (Convert) screen for users. By default it executes a market order on the order book, or the operator can set each pair to use a specific deal (such as the OTC broker or Network swap).
As an extension to this, HollaEx exchanges can also enable Chain Trading, where the system will enable trading between two assets that don't directly have a market on the exchange. When using this, the system will calculate the appropriate pricing between the assets (with an optional spread percentage able to be added by the admin).
What currencies does your cryptocurrency & digital asset trading platform support?
HollaEx supports major digital assets such as Bitcoin and Ethereum, the top 200+ coins and tokens, and fiat currencies, and you can create your own. New assets are added regularly based on their liquidity.
How many trades per second does the system support?
HollaEx doesn't restrict transaction volume. The matching engine is built to handle thousands of transactions per second.
Is margin trading available?
No. Margin trading isn't available.
Can spot and futures be traded?
Only spot trading is available.
How do different countries' exchanges impact the availability and criteria of coin markets?
Countries and exchanges have different coin listing policies. Some exchanges apply strict listing criteria, others are more open. In some jurisdictions the rules aren't explicit and often depend on how decentralized a coin is considered to be.
As an operator, you set your own listing criteria, and you decide whether to charge other crypto projects a listing fee.