Docs · Reference

Glossary

The nouns Holdfast uses, each in one sentence.

Terms

Raise: The pre-launch period where backers deposit SOL toward a min and max.
Backer: A wallet that deposited into a raise; it earns the backers' share of vault-agent profit pro-rata to its deposit.
Bundle: The pooled SOL's first buy on pump.fun, made in the same instruction that creates the token, before anyone else can trade. Its tokens go into the vault.
Vault: The on-chain account that holds the bundle's tokens and the reserve SOL. Only the vault agent trades it; the platform admin can withdraw, and every withdrawal is public.
Reserve: The share of the raise kept as SOL in the vault for the agent to buy dips with.
Curve: The launch's constant-product market (x · y = k) with virtual SOL reserves; it never migrates.
EMA: Exponential moving average of price, updated at every trade over 30 minutes.
Band: The zone around the EMA (± 2%) inside which the vault agent holds.
Vault average cost: The SOL cost per token of what the vault holds; agent buys must fill at or below it.
Window: The period over which the agent's buy and sell budgets reset.
Impact: How far a trade moves the spot price, in percent.
Terms: The fee split and agent limits frozen into a launch at creation.
Vault agent: The one rate-limited signer allowed to trade the vault. It sells into rallies above the vault's average cost and buys back dips, under hard on-chain limits.
Backer earnings: 75% of the vault agent's realized profit, split by deposit, plus the vault's SOL if the launch winds down. Claim any time; it never expires.
Buyback pool: 25% of the vault agent's realized profit and 25% of pump.fun's creator fee. Spent on the Holdfast token and burned.
Wind-down: When a launch is 3+ days old, has had no trade for 24 hours and nobody outside the vault holds the token, anyone can close it. The vault's SOL goes back to backers.