Live on Robinhood Chain

The propAMM platform for tokenized stocks.

The best prices for traders.Out the box onchain flow for CEX market makers.

Why propAMMs

Better prices than AMMs.

Most of Solana's onchain volume is now pAMMs, and they're growing fast on EVM. But today, each propAMM still operates as a separate venue. HyFi fixes that.

PropAMM problems

For market makers

on CEXes who want onchain flow

  • PropAMMs are expensive

    PropAMMs spend $100k's/year on constant price updates - bad for big MMs and totally uneconomical for small-mid MMs.

  • Used to CEXes

    Most MMs want to keep the CEX experience they already have. They don't want the hassle of onchain infra.

  • Manual aggregator integrations

    Each propAMM needs to manually go to each aggregator to get integrated and receive flow - takes months, some won't integrate.

For aggregators

who want the best prices for traders

  • Trades cannot be split optimally

    PropAMMs are pricing black boxes - aggregators can't optimally split trades across 2 propAMMs (only 80:20, 60:40 splits etc), let alone across 100's of MMs.

  • Routes become stale

    Trade split routes calculated offchain by aggregators are usually stale by tx execution.

  • Malicious behaviour

    Many propAMMs quote one price, then change that price at the top of the block before the trade executes.

The solution

Market makers submit quotes to one shared HyFi offchain orderbook. HyFi publishes that book onchain and traders trade against it.

For market makers

on CEXes who want onchain flow

  • Free

    HyFi handles putting orders onchain for free, MMs never make a tx. HyFi has a volume-based fee, currently 0%.

  • CEX offchain API

    MMs only interact with HyFi's offchain CEX, no onchain hassle/infra.

  • Immediate access

    HyFi allows you to immediately compete for flow from all aggregators that already integrated HyFi. Benefit from future integrations automatically.

For aggregators

who want the best prices for traders

  • Optimal splits, best prices

    Each onchain swap walks the onchain book snapshot to get the best price across all MMs, producing the mathematically optimal split within HyFi, like a CEX.

  • Split at execution

    The book is walked at time of swap execution onchain, guaranteeing it's the best price at that time.

  • Neutral platform

    HyFi alone handles onchain book updates, guaranteeing MMs can't change it before trades in a block.

How it works

Quote offchain. Execute onchain.

HyFi is a hybrid of a DEX and a CEX to get the best of both. AMMs' dominance over RFQ shows that traders want immediate execution onchain. MMs want to be able to update their orders constantly for free, like a CEX.

UniswapBuilt as a Uniswap v4 hook. HyFi went through the Uniswap Hook Incubator.

MMs quote into the shared HyFi orderbook offchain; HyFi publishes the compressed book onchain, where the HyFi contract executes trades for the trader.
1

Market makers quote offchain

MMs place/update orders in HyFi’s offchain orderbook for free via API like a CEX.

2

HyFi snapshots

HyFi takes a snapshot and puts the book onchain cheaply.

3

Trades

Traders trade against the orderbook as if it were a regular AMM, walking the book for the best price at execution time.

4

HyFi updates MMs

HyFi updates the offchain orderbook and balances of MMs to reflect trades.

Arbitrage protection. HyFi prevents arbitrageurs from taking orders if they become stale.

Case study on Base

Professional pricing beats passive AMMs.

HyFi returned the best price on 37–61% of samples, depending on order size and direction, while deploying roughly 50–500× less capital than the pools it was measured against.

Read the case study
37–61%

of quotes where HyFi had the better effective price than every comparable Uniswap pool.

Win rate by order size

$10,000
51–61%
$1,000
39–49%
$100
37–47%

Not a guarantee of future performance.

The market

Built for tokenized stocks.

HyFi performs best on assets that have far higher liquidity offchain than onchain, so tokenized stocks are the natural fit.

Deep reference markets

Equities have some of the deepest markets in the world, which is exactly what a professional market maker needs to quote tightly and hedge effectively.

Young onchain liquidity

Onchain liquidity for equities is currently very poor, and HyFi effectively brings CEX liquidity onchain, meaning it's the market where HyFi's MMs have the biggest advantage vs DEXes/pAMMs.

Live on Robinhood Chain

Robinhood Chain is where that liquidity is forming, and where cheap blockspace makes a frequently refreshed shared orderbook practical. HyFi is running there today.

Two places to start.

Read how the shared book is aggregated and executed, or open the app and see what's live on Robinhood Chain right now.