Uniswap V4 is live on 12 chains

The Flaunch memecoin launchpad on Base is first to leverage v4 hooks

article-image

Vector-3D/Shutterstock modified by Blockworks

share


This is a segment from the 0xResearch newsletter. To read full editions, subscribe.


About 20 months after its initial announcement, Uniswap v4 quietly rolled out over the past weekend on 12 chains.

Uniswap v4 is a big deal for the simple reason that it threatens to turn one of DeFi’s most essential primitives — DEXs — into a cheap commodity.

For the longest time, Uniswap competitors have tried to appeal to users with incrementally innovative and piecemeal features like dynamic fees (Trader Joe), providing out-of-range liquidity into money markets (Balancer), MEV internalization (Skip), etc.

Uniswap’s response: Build whatever DEX you like on v4. 

That’s possible thanks to v4’s primary innovation of “hooks.” Hooks are separate smart contracts “attached” to Uniswap liquidity pools, enabling developers to implement custom DEX logic that triggers based on certain behaviors.

For example, Uniswap v3 pools are bound by predefined fee tiers. Now, v4 liquidity pool deployers can customize their pool logic with dynamic fee curves that adjust based on variables like volatility. They can even punish LPs with a fee when they withdraw liquidity.

Liquidity pools could be designed to deposit unused liquidity into Aave to generate a yield for LPs, or implement KYC features like NFT-gating or time-gating (so pools are tradable only within certain hours).

Devs can even introduce a “fee switch” without having to wait for Uniswap protocol to do so. The possibilities are endless.

V4 hooks, in effect, let liquidity pool deployers act as their own “DEX.”

For an example of hooks in action, look to Flaunch — a new memecoin launchpad on Base. 

When tokens pre-launch on Flaunch, they can be bought at a fixed price for 30 minutes. After 30 minutes, all remaining tokens are sold and the memecoin is launched on the open market.

Unlike pump.fun, however, 100% of trading fees are paid to creators and buybacks (the exact ratio depends on the creator). Buybacks take place when tokens collect 0.1 ETH in trading fees.

Using hooks, Flaunch was able to integrate this custom logic into every Uniswap v4 liquidity pool that a memecoin is launched on (there are already thousands). 

Flaunch has launched 2,135 tokens, generated $75.6 million in v4 trading volumes, and paid back 51 ETH since its inception last Friday.

Source: Dune

According to HookRank.io, 24 hooks have been deployed, with the overwhelming majority of TVL ($2.3 million) in Flaunch’s hook contracts.

Then there’s Bunni DEX. It slaps a “rehypothecation hook” on top of v4 to route LP capital to lending protocols for more profitable LP strategies. There’s also Doppler, a liquidity bootstrapping protocol by Whetstone Research that simply builds auctions on top of v4 contracts.

Another upcoming innovation on v4 hooks is the Angstrom DEX by Sorella Labs. Angstrom is implementing a v4 hook that seeks to mitigate MEV leakages to L2 sequencers by protecting LPs against CEX-DEX arbitrageurs (loss-vs.-rebalancing) and traders against MEV attacks.

Based on this directory, there are about 24 active projects building on v4 hooks.

With v4, Uniswap is no longer a liquidity pool launchpad. Uniswap has effectively become a spot DEX launchpad.


Get the news in your inbox. Explore Blockworks newsletters:

  • Blockworks Daily: The newsletter that helps thousands of investors understand crypto and the markets, by Byron Gilliam.
  • Empire: Start your morning with the top news and analysis to inform your day in crypto.
  • Forward Guidance: Reporting and analysis on the growing intersection of crypto and macroeconomics, policy and finance.
  • 0xResearch: Alpha directly in your inbox. Market highlights, data, degen trade ideas, governance updates, token performance and more.
  • Lightspeed: Built for Solana investors, developers and community members. The latest from one of crypto’s hottest networks.
  • The Drop: For crypto collectors and traders, covering apps, games, memes and more.
Tags

Upcoming Events

Industry City | Brooklyn, NY

TUES - THURS, JUNE 24 - 26, 2025

Permissionless IV serves as the definitive gathering for crypto’s technical founders, developers, and builders to come together and create the future.If you’re ready to shape the future of crypto, Permissionless IV is where it happens.

Old Billingsgate

Mon - Wed, October 13 - 15, 2025

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

Research

article-image

Coinbase Asset Management and One River CEO Eric Peters explains why crypto’s not yet focused on fundamentals

article-image

Over the past 24 hours, PumpSwap’s largest liquidity pool by volume contains tokens with the tickers DOGEMOON and ballscoin

article-image

10T Holdings’ Dan Tapiero predicts crypto listings on exchanges are a “mini step” for value moving onchain

article-image

The S&P 500 was mostly flat after a month of losses, and the Nasdaq has been slowly gaining

article-image

Movement Labs is once again at the core of some criticism after it declined to name a market maker offboarded by Binance

article-image

Experts discuss the future of crypto ETFs as Trump puts “money where his mouth is”