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DEX Trading Models, Self-Custody, Liquidity, and Smart Contract Risks

Article OKX Learn

Summary

The guide explains decentralized exchanges as on-chain venues where users trade from personal wallets through smart contracts. It distinguishes order book systems, which match buyers and sellers, from automated market makers, which route swaps through liquidity pools. It compares non-custodial trading with centralized exchanges across custody, privacy, transparency, and user support, and describes basic steps for making a wallet-based swap.

For traders, the main operational considerations are liquidity, slippage, network fees, and the risk of signing transactions or approving unsafe contracts. Pool-based trading can offer direct access to tokens, but shallow liquidity can worsen execution, particularly for large orders or less traded assets. The text also notes that smart contract defects may cause losses and that users generally have limited recourse. Its platform comparisons and fee figures are broad claims, not a controlled evaluation; actual costs and conditions depend on the chain and venue.

Key ideas

  • DEXs use smart contracts to match orders or facilitate swaps through automated market maker liquidity pools.
  • Self-custody gives users control of funds but makes key management and transaction approval their responsibility.
  • Low liquidity can increase slippage, especially for large trades and less active tokens.
  • Network fees add to swap costs, and smart contract bugs or malicious approvals can result in losses.
  • On-chain transparency supports transaction inspection but does not guarantee safe execution.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.