Trading in the crypto world, transaction fees are often the hidden culprit eating into profits. But some platforms have thought things through, such as certain DeFi projects that have developed a special mechanism specifically for frequent asset traders.

The key difference lies here: decentralized exchanges or insulin trading generally require a slippage plus fee of 0.3%-0.5% to complete a trade. But with the Lightning Swap feature, the cost is directly cut to 0.00%—entering and exiting without losing a cent.

How to use this for arbitrage? Let’s look at a real case.

Suppose the market looks like this: on a certain DEX, lisUSD is priced at 1.002 USDT (with a premium), while on another platform, USD1 and lisUSD are pegged 1:1. This creates an arbitrage opportunity.

The specific steps are as follows:

First, take out 10,000 USD1. Second, use the zero-fee Lightning Swap to directly exchange into lisUSD—no slippage, no fees, 10,000 in equals 10,000 out. Third, list the obtained lisUSD on another trading platform and sell at the 1.002 price to get USDT. Calculate the profit: 10,000 multiplied by 0.002, which is a solid $20 profit.

If later USD1 becomes discounted, you can continue this cycle. As long as the price difference exists, this operation can keep running. It may not seem like much, but with large numbers and almost zero costs, the gains add up.