Kalshi and BitGo announced on October 22 that some Kalshi clients can now pledge Bitcoin, Ether or GENIUS Act-compliant stablecoins as collateral for loans that fund margin on Kalshi’s perpetual futures. The trader keeps the coins. The loan pays the margin. That’s the whole pitch, and it’s aimed squarely at money now trading perps offshore.

The structure has three parties. The client borrows. Kalshi Katalyst, a lending affiliate of Kalshi Prime, makes the loan. BitGo Bank & Trust holds the pledged crypto in custody. Kalshi Prime is the company’s US-registered futures commission merchant, so the margin lands with a regulated broker instead of an offshore exchange’s internal ledger. Kalshi says more custodians will follow BitGo.

Decentralized lending protocols allow users to borrow and lend cryptocurrency through smart contracts, without any underwriting institution, credit bureau, or loan officer involved in the process. The model replaces credit assessment entirely with collateralization — a user who wants to borrow must first deposit more than the borrowed amount in a different cryptocurrency, and the smart contract manages the rest.

The process begins with a liquidity provider depositing an asset — say, ether — into a lending protocol. That deposit is available for borrowers to withdraw, provided they first lock collateral into the same smart contract. Lending in defi generally requires over-collateralization: the collateral deposited must exceed the value of the loan, often significantly, to provide a buffer against the price volatility common in cryptocurrency markets. The smart contract tracks the loan-to-value ratio continuously, relying on oracles to feed it current price data for both the collateral and the borrowed asset.

Decentralized finance and the traditional financial system both offer lending, trading, and asset management services. The similarity largely ends at the product description. The underlying structures — how participants are identified, how transactions are authorized, how risk is managed, and who bears it — diverge in ways that carry significant implications for regulation, access, and stability.

The most fundamental difference is intermediation. Traditional finance is built on institutions that stand between parties to a transaction, holding assets, processing orders, underwriting loans, and taking on counterparty risk in exchange for fees and regulatory compliance. A bank borrower is not a direct counterparty to a depositor; both are clients of an institution that intermediates. Even in securities trading, where buyers and sellers are nominally matched, brokers, exchanges, and clearinghouses layer between the transaction and its settlement. Each of those intermediaries is licensed, regulated, supervised, and legally accountable.

Decentralized finance — defi — is not a single product or platform. It is a collection of financial goods and services that operate through automated software programs called smart contracts, running on public blockchains, accessible in principle to anyone with the requisite technical knowledge and some quantity of cryptocurrency. The Congressional Research Service, in an April 2026 overview of the sector, defines it as a system characterized by “highly automated financial networks that have no single point of failure, do not rely on a single source of information, and are not governed by a central authority.”