Smart Contracts
Intermediate
What is
Liquidity Pool?
Smart contract holding paired tokens that enables decentralized trading on AMM exchanges.
Liquidity pools are smart contracts containing reserves of two or more tokens. Traders swap against the pool rather than matching with counterparties. Liquidity providers deposit tokens and receive LP tokens representing their share, earning a portion of trading fees.
Key Points
- Contains paired tokens (e.g., ERG/SigUSD)
- Enables instant trades at any size
- LPs earn share of trading fees
- LP tokens represent pool share
- Deeper pools = less slippage
- Risk: impermanent loss if prices diverge
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Frequently Asked Questions
Questions about Liquidity Pool
Common questions about this topic
How to get started with Ergo?
Start by getting a wallet (Nautilus for browser, Terminus for mobile). Back up your seed phrase securely offline. Get some ERG from a current exchange or verified venue, then make a small test transaction. After that, explore NFTs, mining, DeFi references, or the developer stack if you're a builder.
How-to
Getting Started
How to provide liquidity on Ergo?
Providing liquidity on Ergo depends on the current active DEX or AMM venue. In general, you deposit equal value of two assets into a pool, receive LP tokens representing your share, and earn a portion of trading fees. Spectrum Finance is historical/frozen since February 2024, so verify the active venue, contracts, liquidity depth, and withdrawal process before depositing funds.
How-to
DeFi
How to use Spectrum DEX on Ergo?
Spectrum Finance is best treated as a historical Ergo DEX reference: the team published a sunset notice and froze contracts in February 2024. If you are studying old Ergo AMM flows, review Spectrum as a reference implementation, but do not assume it is an active venue for new swaps or liquidity. For any live trading, verify the current venue, liquidity, contract status, and official links first.
How-to
DeFi
What is SigmaUSD and how does it work?
SigmaUSD is Ergo's algorithmic stablecoin, pegged to USD and backed by ERG reserves. It uses the AgeUSD protocol: users mint SigUSD by depositing ERG, while SigRSV holders provide reserve backing and absorb volatility. The reserve ratio (400-800%) ensures stability. No centralized issuer, no bank accounts - pure crypto collateral.
Explainer
DeFi