On-Chain Execution Data

CoWSwap vs Uniswap

Neutral on-chain benchmarking of slippage, revert rates, and overall execution quality.

Bottom line

CoWSwap and Uniswap are effectively tied on ClearTrace's on-chain slippage benchmark, 88.6 vs 88.8 out of 100 (within measurement noise), so the better choice comes down to the specific token pair and trade size. (data as of July 15, 2026)

Protocol Scorecard

ClearTrace on-chain execution benchmark: CoWSwap vs Uniswap (data as of July 15, 2026). A higher slippage score means lower realized slippage; a lower revert rate is better.
CoWSwap Uniswap
Slippage Score (0-100) 88.6 88.8
Trades Analyzed 15,189 1,265,229

CoWSwap is a DEX aggregator that routes and splits orders across many venues, while Uniswap is a single automated market maker (AMM) trading against its own pools. The practical question is whether CoWSwap's routing and MEV-aware order flow actually beats trading directly on Uniswap. Note that CoWSwap can itself route through Uniswap pools, so this measures the value of aggregation, not rival liquidity.

Across the trades ClearTrace benchmarked, Uniswap posted a slippage score of 88.8/100 versus 88.6/100 for CoWSwap — a statistical dead heat of 0.2 points. The score reflects realized slippage only — derived from median slippage versus a 1-minute VWAP, where a higher number means lower slippage. MEV exposure and revert rates are tracked as separate metrics. Uniswap was measured over 1,265,229 trades and CoWSwap over 15,189.

The sample sizes differ substantially (Uniswap: 1,265,229 trades; CoWSwap: 15,189), so CoWSwap's score reflects a narrower slice of activity and may move as more volume is observed.

On current data the two are effectively tied — within measurement noise, either is a reasonable choice, and the better option often comes down to the specific token pair and trade size. We recalculate these scores on every data refresh; see our methodology for how they are derived.

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Frequently Asked Questions

Which has better execution quality, CoWSwap or Uniswap?

They are essentially tied on our slippage score. CoWSwap scored 88.6/100 and Uniswap 88.8/100 in ClearTrace's on-chain benchmarking — a difference within measurement noise.

Does CoWSwap or Uniswap offer better MEV protection?

ClearTrace publishes a slippage-based score and per-aggregator revert rates — not a per-aggregator MEV-protection score. On slippage, Uniswap was tighter (~11.2 bps vs ~11.4 bps). For MEV specifically, the dashboard surfaces detected sandwich activity as a separate metric.

Is CoWSwap or Uniswap better for large trades?

For large orders, aggregators such as CoWSwap can split a trade across multiple pools to reduce price impact, which often helps on size. The right venue still depends on the specific pair and amount — the live dashboard tracks current execution quality.