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Buy/Sell Block

HookrLive

Stops one trader buying and selling in the same block.

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What you take on

  • Its clock is the parent chain's block number, about 12 seconds a block, not Robinhood Chain's own blocks.
  • Sells can never be locked longer than 5 blocks, and the launch's own dev buy is exempt from the buy pause.
  • While sells are locked, every liquidity addition but the launch's own position is refused, the launch owner's included.
  • A range opened before its owner's first trade in a block, even earlier in the same transaction, can still be filled and removed in that block. Only a sell, or an addition after the trade, is refused.
  • Smart accounts that trade through one shared aggregator and one bundler count as one trader, so another's buy can hold their sells for that block.
Source verification is not an independent audit.
Gas it adds
~11K
a swap, measured on Hookr
Slot
Advisory
one per pool
Status
Live
Read at block 82701337

How it behaves

A round-trip mode needs the round-trip core, which records who traded in each block; with it off the pool keeps the standard core.

It takes the pool's one advisory, so it never shares a pool with Tax + Conversion, Market Guard, Market-hours fee, Managed fee, Zap Relay source, Zap Relay target, Swap Reward Mint or Usage fee.

What you set

Fixed with the pool at launch.

Same-block round trip
Both directionsor Off, Sell after buy
Buy pause
0 blocks0 blocks to 300 blocks
Sell lock
0 blocks0 blocks to 5 blocks

Can't be combined with

  • Any other advisoryA pool takes one advisory, so it runs one of these blocks. A Multi-pool launch can carry another on a pool of its own.
  • A Partner tax launchA Partner tax launch's tax is the pool's one advisory.

Other Hook Blocks

Market GuardSwaps that stray from a live Chainlink price pay the pool's LPs a surchargeRecovery reserveMoney a pool's owner sets aside in public view, filled by top-ups at launch, that pays back LPs or traders after a reviewed incidentCanonical Venue TokenA token that trades only on its own pool, for assets that must stay on one known venueMarket-hours feeA fee that follows the US stock market's sessionsManaged feeA surcharge Hookr's keeper sets inside a cap you fix at launchUsage feeHookr's Hook Blocks Market block: every swap pays a usage fee to its builder, its backers, Hookr and a reserveDeploying soonHook Blocks MarketBuilders publish add-on blocks bonded in HOOKR, and every swap in a pool that installs one pays its usage feeTax + ConversionBuy and sell taxes, paid in the pool's quote
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