For Backers

The backer owns the product. Proportion provides the funded layer.

For a backer, the funded account is the most capital-intensive part of a prop firm. Proportion funds it, enforces its floor and settles it. Evaluation, brand, marketing and trader selection stay your product. You interact with the protocol through its contracts. Trader orders pass through the exchange proxy, which checks them against the account’s permissions before submitting them to Hyperliquid. The vault allocates the capital. You pay B + P at activation, and whatever part of B the trader does not lose comes back. Where that money comes from is your business: in a prop firm it is usually the fees from challenges that did not pass, or any other revenue.

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What Proportion gives you

An SDK call creates an isolated on-chain account with capital, a floor and automatic risk enforcement. The account belongs to the trader within the protocol’s rules. You decide who receives an account and on what commercial terms. The protocol enforces the funded account’s capital rules and settlement.

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Who counts as the backer

For a direct activation, the wallet that pays B + P is recorded as the backer, the builder field of the account record. Funding yourself uses the same call with your own address as the trader, so one wallet is both backer and trader. Both ordinary profit shares then go to that address, as does the backer’s share on a forfeiting close. For a challenge promotion or finance listing, ChallengeVault pays the activation charge and records the backer named in the challenge or listing.

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Where your revenue comes from

The subscription is not backer revenue: it splits between the vault and the protocol. Unused buffer does come back, but that is your own capital returning rather than income.

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