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DEX Trading: How Smart Contracts, Liquidity Pools, and Self-Custody Work

Article OKX Learn

Summary

The document explains how decentralized exchanges let users trade from personal wallets through smart contracts. It outlines automated market makers, where liquidity providers supply token pools and earn fees, as well as on-chain order books and hybrid designs. It contrasts DEXs with centralized exchanges on custody, privacy, fees, token availability, and access, and describes potential benefits such as pseudonymous participation and broad token access.

It also identifies trade-offs that matter to traders: smart contract vulnerabilities, limited liquidity and slippage in smaller markets, front-running, and the responsibility of protecting wallet keys. The discussion is introductory rather than a quantitative comparison; it provides no measured fee data or independent evidence for claims about security, price impact, or platform features. Its descriptions of OKX are promotional, so platform-specific assertions should be treated as claims made by the document rather than general properties of DEXs.

Key ideas

  • DEXs use smart contracts to execute trades while traders retain control of assets in their own wallets.
  • Automated market makers route swaps through liquidity pools supplied by users, who may earn trading fees.
  • DEXs can offer broad token access and pseudonymous participation, but the degree of privacy and access varies.
  • Smart contract bugs, low liquidity, slippage, and front-running can create material trading risks.
  • Self-custody shifts responsibility for protecting private keys and wallet access to the user.

Tags

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