Do larger swaps get better rates or just bigger fees

05 September 2026

No, larger swaps do not get better rates, and the fees on a percentage basis are not smaller. Larger swaps typically receive a worse rate on the same pool, and the absolute fee grows in proportion to the swap size.

How the mechanism works

In an automated market maker like the one powering MilkshakeSwap, all swaps of a given pair draw from a single shared liquidity pool. The price you receive is determined by the ratio of the two tokens in that pool. When you swap, you remove one token and add the other, shifting the ratio. A larger swap shifts the ratio further than a small one, which means the average price you get for each unit is worse. This is called price impact.

Price impact is the main reason a big swap's rate is worse than a small swap's rate, all else equal. The fee you pay is a fixed percentage of the swap size - typically 0.3% on most pools, though some pairs may differ. That percentage does not change. So a larger swap pays a larger absolute fee, but the fee as a fraction of the swap amount stays the same.

When the fee itself is the "better rate" illusion

Some users think a bigger trade gets a volume discount. That is not how these contracts work. The protocol fee is a flat percentage. No tiered pricing exists. The only way a large swap could appear to get a "better" rate is if the liquidity pool is unusually deep - meaning the price impact is smaller for a given size. But that is a property of the pool, not a discount for the trader.

A large swap on a shallow pool can suffer devastating price impact. Swap a sizeable portion of a token's liquidity and the rate collapses. The fee is trivial beside that loss.

Where the money goes

The fee goes to liquidity providers who deposited tokens into the pool. The spread - the difference between the quoted rate and the rate you actually receive - is not a separate charge. It is the result of price impact plus the fee. The quoted rate is an estimate based on current pool reserves. As your swap executes, the reserves change, and the final rate settles somewhere below that estimate for any non-trivial trade.

Network fees are paid to validators of whichever chain the swap occurs on. They are not related to swap size in a linear way. A congested network can make a small swap cost more in network fees than the entire exchange spread. But the question is about rates versus fees in the swap itself, and the answer is unambiguous: larger swaps receive a worse effective rate, and the fee is proportionally identical.

What to look at instead of trade size

If you are swapping a large amount, the practical question is whether to break it into smaller swaps. Splitting can sometimes reduce total price impact if done across multiple pools or over time, but that depends on the pair and market conditions. There is no built-in advantage to any single approach.

If you want to understand where your money goes in any swap - whether the fee, the spread, or the network cost dominates - the hub page "What a crypto swap actually costs" covers the full breakdown. That page explains how each component behaves differently depending on the pair, the chain, and the amount you trade.

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