How to Use Decentralized Exchanges (DEXs) Guide

How DEXs Work

Unlike centralized exchanges (CEXs), decentralized exchanges (DEXs) are not managed by a central authority. The trades are executed through smart contracts and users retain custody of their own funds. This approach leverages the full potential of blockchain technology, which aims to decentralize financial services and give users complete control over their assets.

Most DEXs use Automated Market Maker (AMM) system to facilitate trades. Uniswap was among the first to popularize the AMM system when it was launched in 2018. By eliminating the need for traditional order book system, AMM provides high liquidity, allowing traders to execute trades directly with liquidity pools rather than waiting for their orders to be matched. Anyone can become liquidity provider by contributing to liquidity pools, and in return, they earn a share of trading fees generated from the trades.

Benefits of AMM (Automated Market Maker)

The order book system generates liquidity by maintaining a continuous flow of buy and sell orders, requiring a sufficient number of active traders who are willing to buy or sell assets at specific prices. When there are not enough active traders, order matching can become slower, leading to greater price swings and slippage. This is especially noticeable in markets for new or less popular cryptocurrencies, where trading activity is often lower. Additionally, liquidity can be reduced during off-peak trading times or during large sell-offs, which can decrease both the price and liquidity of an asset.

In contrast, the Automated Market Maker (AMM) system can sustain high liquidity regardless of the asset’s popularity, trading hours, or market conditions. By using liquidity pools and allowing anyone to provide liquidity, AMMs can facilitate trades even in scenarios where the traditional order book system might struggle due to low trading activity or market volatility.

Additionally, AMM system also creates incentives for liquidity providers (LPs) by offering rewards. Many DEXs such as Pancake Swap, provide additional rewards alongside share of transaction fees, allowing LPs to earn passive income.

Setting Up Wallet

Most decentralized exchanges (DEXs) do not provide an integrated wallet to purchase and store crypto. You need a DeFi wallet to transfer funds to the DEX. There are many wallets with robust security features and DeFi integration, allowing users to store and swap cryptocurrencies. Some wallets do not have the feature to purchase crypto. That’s why, you should select a wallet that integrates with payment processors. Wallets such as Trust wallet allows the purchase of crypto using credit or debit cards.

Once you have selected a wallet, created an account, and purchased crypto, now you can start trading. Move to the DEX platform you want to use for spot trading.

Executing Spot Trades

Select a specific blockchain network which is compatible with crypto assets you want to trade. Connect your wallet to the DEX, then navigate to the trading section of the decentralized exchange. Now, select the coin you want to trade and the coin you want to receive. Enter the amount you want to sell and the DEX will automatically calculate and display amount of receiving cryptocurrency. Review the transaction details such as crypto amounts, slippage tolerance, transaction speed and fees. Finally, select “Trade” or “Swap” option and confirm the transaction.

Monitor and Manage

After initiating the transaction, it would be processed by blockchain network. The processing time can vary from few seconds to several minutes, depending on network congestion. Once transaction is completed, you can check your wallet balance to see if you have received new cryptocurrency.

You can also navigate to transaction history in your wallet to see status of your trade. The wallet also generates a transaction hash or transaction ID which you can enter in blockchain explorer application to see status of the specific transaction you have executed on DEX. Additionally, you can also use portfolio tracker app to monitor performance of your trades and current crypto holdings. These portfolio apps usually integrate with crypto wallet, allowing users to manage their crypto assets effectively.

Earning with Liquidity Farming

By providing liquidity to liquidity pools using your crypto assets, you can earn a share of transaction fees based on the amount of liquidity you contribute. In non-concentrated liquidity models (older versions of decentralized exchanges), you could deposit an asset pair (like BTC/USDT), and liquidity is distributed across the entire price curve. Each time a trade occurs that uses the pool’s liquidity, you earn a share of the transaction fees. However, a large portion of capital is often under-utilized since liquidity is spread across all possible price levels.

In concentrated liquidity models (such as Uniswap v3 and v4), you select a specific price range where you want to allocate your capital. You earn trading fees only when the market price is within your selected range and your liquidity is active. This approach improves capital efficiency by focusing liquidity where trading is most likely to occur, reducing idle capital compared to traditional AMM models.

Exploring Other Features

Alongside trading and liquidity provision, decentralized exchanges (DEXs) offer several other financial services within the DeFi ecosystem. One of the most common features is staking, where users lock their tokens in smart contracts (to help in network security) and earn rewards in return.

The rewards from staking vary across platforms and depend on several factors, including blockchain network activity, the demand for the staked asset, the protocol’s reward emissions, and any additional incentive programs offered by the platform. In many cases, staking provides a relatively predictable source of yield compared to more volatile trading strategies, although returns can still fluctuate over time. Stablecoins staking remains the safest way to earn passive income since your stablecoins retain their value.

Some platforms also allow users to stake liquidity provider (LP) tokens, which represent their share in a liquidity pool. On platforms like PancakeSwap, users who provide liquidity receive LP tokens, which can then be staked in farming pools to earn additional rewards on top of the trading fees they already earn from the liquidity pool. This creates a “double reward” structure:

First, users earn a share of transaction fees from the liquidity pool
Second, they may earn extra incentive tokens from staking LP tokens in farming programs

This combination of liquidity mining and staking is often referred to as yield farming, where users increase returns by participating in multiple layers of DeFi reward systems.

However, it is important to note that higher rewards often come with higher risks, including smart contract vulnerabilities, token price volatility, and changes in incentive structures over time.