Credit / Debit Card
Fee
Variable Fees
Processing Time
Usually within 1 minute, up to 48 hours
Minimum Purchase Amount
Starting from approx. 10–15 USD
Supported Regions
Subject to region, fiat currency, issuing bank, and payment channel support
How to Buy SigUSD (SIGUSD) on LBank
Learn how to buy SigUSD (SIGUSD) on LBank, including payment methods such as credit cards, debit cards, Apple Pay, and bank transfers, as well as the purchase process, preparations, and FAQs.
Step 1
Download the LBank App
Please download the LBank App and register to get started
Step 2
Fund your account
Deposit using your preferred payment method.
Step 3
Choose your cryptocurrency
Select the crypto you want to buy from over 3,000,000 cryptocurrencies available on LBank Exchange or Wallet.
Purchase Decision Overview
Bank Transfer / Local Transfer
Fee
Variable Fees
Processing Time
Depends on the payment method; some local channels may be faster
Minimum Purchase Amount
Starting from approx. 1–10 USD
Supported Regions
Subject to local payment channel support
Three Simple Steps to Buy SIGUSD on LBank
How to Buy SIGUSD on LBank: Payment Methods Overview
Explore the available payment methods for buying SIGUSD on LBank, including credit card, debit card, bank transfer, Apple Pay, Google Pay, PayPal, and P2P, to quickly choose the most suitable way to buy SIGUSD.
Credit / Debit Card
Processing Time: Usually within 1 minute; up to 48 hours
Use a Visa/Mastercard that supports international online transactions and ensure 3D Secure is enabled; if it fails, try a different card or try again later
Common Reasons for Failure: The issuing bank declined the cryptocurrency transaction; insufficient balance; 3D Secure verification failed; risk control interception; or region/card network not supported
Bank Transfer / Local Transfer
Processing Time: Instant or 1–3 Business Days
Verify the receiving account, reference code, and transfer network, and use a bank account consistent with your identity verification
Common Reasons for Failure: Incorrect receiving information or reference code; name mismatch; bank processing delay; or unsupported transfer network
What Do You Need to Prepare Before Buying SigUSD (SIGUSD) on LBank?
Check the preparations required before buying SigUSD (SIGUSD) on LBank, including account registration, identity verification (KYC), payment methods, regional availability, and pre-purchase precautions to help you smoothly complete the BTC purchase process.
Suitable for
Users who want to quickly buy SIGUSD with fiat
Before You Buy: Checklist
Register and log in to your account
Complete required KYC
Prepare payment method
Confirm regional availability，Check limits / fees / processing time
User Path
Buy Crypto
How to Buy SigUSD on LBank – Step-by-Step Guide
Before you begin, decide how you’d like to pay:
Pay with fiat
If you're new to crypto, using fiat currency (such as USD, EUR, etc.) is the easiest way to buy SigUSD. LBank supports various payment methods, including debit cards, credit cards, bank transfers, and other local payment options where available. You may need to fund your LBank account before making a purchase.
Pay with other cryptocurrencies
If you already hold other cryptocurrencies, you can trade them for SigUSD on LBank. Please make sure that LBank supports the trading pair you need (e.g., Bitcoin (BTC)). LBank offers a wide range of trading pairs, allowing you to conveniently convert your existing crypto into SigUSD.
LBank supports multiple payment methods
You can use the following payment methods to purchase SigUSD on LBank:
Mobile app guide
1
Open the LBank mobile app and tap “Buy Crypto”
2
Select “Buy”
3
Choose , enter the fiat currency you want to use, input the amount, then tap “Buy” or “Confirm”
Desktop guide
1
Log in to LBank on your desktop browser and click the “One-Click Buy” option.
2
Under the “One-Click Buy” tab:
(a). Choose the fiat currency you want to use
(b). Select the SigUSD you want to purchase
(c). Enter an amount or use quick-select options (e.g., 100, 200, 500, max)
(d). Choose your payment method
(e). Click “Confirm” or “Buy now”
P2P Trading
What is SigUSD (SIGUSD)?
SigUSD is a crypto/Web3 project that functions as an algorithmic stablecoin, designed to maintain a peg to the US dollar. It is built upon the AgeUSD protocol and operates on the Ergo blockchain, which is an eUTxO-based smart contracting platform. The project aims to provide a decentralized, overcollateralized, and crypto-backed stablecoin solution that is resistant to market volatility. SigUSD is characterized by being trustlessly issued, launched directly on-chain, and non-custodial, meaning holders do not need to rely on any central entity. The stability of SigUSD is maintained through a dual-token model involving SigUSD itself and SigRSV (the reserve coin). SigUSD is backed by a pool of ERG coins, the native cryptocurrency of the Ergo blockchain, held within a smart contract. This backing is overcollateralized, with a reserve ratio typically fluctuating between 400% and 800%. Reserve providers contribute ERG to mint SigRSV, while users wishing to obtain the stablecoin submit ERG to mint SigUSD. To ensure the peg's integrity and protect reserve token holders, the protocol incorporates specific mechanisms. For example, if the reserve ratio falls below 400%, the contract can prevent the redemption of SigRSV. Conversely, if the ratio exceeds 800%, SigRSV minting may be halted to manage congestion and encourage SigUSD issuance. These locking mechanisms help maintain the reserves within the target range, avoiding forced liquidations. SigUSD was co-designed by IOHK, Ergo, and Emurgo. Its primary purpose is to introduce stability within the often-volatile cryptocurrency environment, offering a medium for sending payments. A 2.25% fee is applied for minting protocol tokens, which is then distributed to SigRSV token holders. Learn more
Is SigUSD (SIGUSD) a good investment?
Whether SigUSD (SIGUSD) is a good investment depends on your personal financial situation and risk tolerance. Cryptocurrency investments are speculative and can be highly volatile.
Before investing in SigUSD (SIGUSD) or any cryptocurrency, consider the following:
Your financial goals
Are you seeking short-term gains or long-term growth?
Your risk tolerance
How much potential loss are you comfortable with?
Diversification
Don’t put all your eggs in one basket. Spread your investments across different types of assets.
Your goals and time horizon
Cryptocurrencies are best suited for long-term investors. Disclaimer: This is not financial advice. Please do thorough research before making any investment decisions.
Fees, limits, and processing time for buying SIGUSD on LBank
Compare fees, transaction limits, and estimated processing times across different payment methods. Actual fees and availability may vary by region, fiat currency, payment method, and third-party providers. Please refer to the order page for final details.
ROI calculator
If I invest, how much profit will I make?
Invest
$
Enter
SIGUSDDate
2026-06-06
You will earn $-- in profit, with an ROI of --
What can you do with SigUSD (SIGUSD)?
Investment
Buy and hold SigUSD (SIGUSD), expecting its value to increase over time.
Trade
Actively trade SigUSD (SIGUSD) on LBank to profit from price fluctuations.
Pay
Use SigUSD (SIGUSD) to pay for goods and services where accepted.
Why is LBank the best platform to buy SigUSD (SIGUSD)?
User-friendly interface
LBank offers a simple and intuitive platform for buying and selling SigUSD (SIGUSD).
Competitive fees
LBank provides competitive trading fees for SigUSD (SIGUSD).
Secure platform
LBank applies robust security measures to protect your funds.
Diverse trading pairs
LBank offers a wide range of trading pairs for SigUSD (SIGUSD).
24/7 customer support
LBank provides customer support to help you with any questions or issues.
Mobile app
Trade SigUSD (SIGUSD) anytime, anywhere using the LBank mobile app.
High liquidity
LBank offers excellent liquidity for SigUSD (SIGUSD) trading, ensuring you can easily buy and sell your crypto assets.
Regulatory compliance
LBank complies with all regulatory requirements in the jurisdictions where it operates to ensure a compliant and secure trading environment
After buying SIGUSD, what is the best way to store it?
After buying SIGUSD, you can choose a storage method based on your usage frequency, holding period, and security needs. If you need to trade at any time, you can store it in your LBank account. If you prioritize self-custody or long-term security, consider using a personal wallet or a hardware wallet.
Store in your LBank account
Suitable for
Users who want to trade or convert at any time
Short-term BTC holders
Features
Ready to use immediately after purchase; easier to use
Ideal for frequent trading, conversions, or using platform features
Security Alert
Please enable 2FA
Please set an anti-phishing code
Only log in through official channels
Transfer to a personal hot wallet
Suitable for
Users who want to manage their own assets
Users who need daily transfers or on-chain usage
Features
More flexible; convenient for daily transfers and management
Better suited for small holdings and everyday use
Security Alert
Do not store seed phrases or private keys in the cloud
Do not save sensitive information via chat tools, email, or screenshots
Stay alert for phishing websites and fake wallet apps
Transfer to a hardware wallet
Suitable for
Long-term BTC holders
High-value holders who prioritize security
Features
Private keys are stored offline, offering enhanced security
Ideal for long-term storage of infrequently moved assets
Security Alert
Securely back up seed phrases offline
Never disclose your recovery phrase to anyone
Assets may be irrecoverable if the seed phrase is lost
SigUSD (SIGUSD) FAQ
SigUSD is an algorithmic stablecoin designed for the Ergo blockchain, aiming to maintain a stable value pegged to the US Dollar. It is built upon the AgeUSD protocol and uses ERG as its primary backing asset. It offers decentralized liquidity and allows users to stabilize the dollar value of their holdings within the Ergo DeFi ecosystem, serving as a stable medium for transactions.
SigUSD maintains its dollar peg through a decentralized reserve mechanism. It uses ERG as collateral and involves a secondary token, SigRSV. Users mint SigUSD by locking ERG into the protocol's reserves. The system employs a floating reserve ratio, typically between 4:1 and 8:1 (ERG to SigUSD value). To protect the peg, the protocol can automatically halt minting or redeeming of tokens if these reserve ratios fall outside predefined thresholds, ensuring the collateralization level remains robust.
SigRSV, or Sigma Reserve Coin, is a crucial reserve token that helps back SigUSD. Users can mint SigRSV by contributing ERG to the SigUSD reserve. SigRSV holders benefit from a portion of the transaction fees generated within the protocol. They also stand to gain if the value of the underlying collateralized ERG in the reserve increases, acting as a dynamic counter-balance to SigUSD's stability.
SigUSD addresses the critical need for a decentralized, stable currency within the Ergo blockchain's ecosystem. It provides price stability in the highly volatile cryptocurrency market, allowing users to hold value without direct exposure to rapid price fluctuations of native tokens like ERG. This stability is essential for enabling and expanding various DeFi applications on Ergo, offering a reliable medium for transactions, savings, and other financial activities that require a consistent unit of account.
While SigUSD aims for stability, holding SigRSV carries risks due to the price volatility of ERG and potential fluctuations in the reserve ratio. SigUSD holders themselves sacrifice potential gains if ERG's price appreciates significantly, as their redemption value remains pegged to the dollar. A significant risk for the protocol includes the possibility of reserves becoming depleted if the underlying collateral value drops severely or if many users try to redeem during adverse market conditions, potentially leading to a de-pegging event.
The protocol has built-in mechanisms to manage situations where the reserve ratio falls too low. If the reserve ratio drops below 400%, new SigUSD cannot be minted, preventing further dilution of the collateral. Should the ratio fall even further, below 100%, the stablecoin's peg to the USD could break. To mitigate this, the protocol is designed to automatically lock SigRSV redemption if the ratio goes too low, which helps protect the remaining reserves and the stability of SigUSD.
