KETJU Research

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Dollar lending

cSigma Finance

Not approved Too small to exit at size
Issued
2026-08-16
Last confirmed
2026-08-16
Next check due
2026-11-15
Chains
Arbitrum One · Mixed control, Ethereum · No freeze key, Base · Mixed control

cSigma Finance is a commercial lending protocol on Ethereum that connects stablecoin lenders to global borrowers through managed credit pools and yield tokens. At the 2026-08-16 survey, it held about $21.6M, primarily on Arbitrum with smaller Ethereum, Hedera and Base balances, below our size floor. One practice advising 100 households moves $1M to $8M into a venue based on the same research. At this scale, that book becomes the exit crush. The protocol is below the size floor, so we do not open an individual review until it clears the floor. At scale, it would face the off-chain credit questions: the borrowers are commercial businesses whose books cannot be inspected on-chain.

The research file

Mechanism applicability

cSigma pools connect stablecoin lenders to real-world businesses and tokenized private-credit portfolios. Deposits mint pool or yield-bearing share tokens while managers deploy capital into loans. Newer csUSD can shift funds between RWA credit markets and onchain strategies. Borrower cash flows, collateral and enforcement remain offchain even though share accounting and settlement are onchain. The measured system remains below the shared version-1 size floor, so we do not open an individual review until it clears the floor.

Current observation and perimeter

The DefiLlama protocol API read on 2026-08-16 classified cSigma as RWA Lending and reported approximately $21.60M: $21.12M on Arbitrum, $0.47M on Ethereum, about $2,000 on Hedera and a nominal Base balance. cSigma’s current site separately reports $13.8M TVL and more than $80M of originated loans, which shows a difference in timing or what each total counts. The registry uses the repeatable survey value and corrects the stale Ethereum-only scope.

Control and exit applicability

Pool managers select borrowers, deploy capital, manage whitelists and help return funds. KYC and KYB backend services decide who is eligible, with final access rules enforced onchain. cSigma advertises borrower assessment, first-loss capital, collateral and other contract safeguards, but these need offchain checks and enforcement. Withdrawals use available reserves first and then a FIFO queue filled by repayments or returned capital. The protocol does not guarantee when queued withdrawals will be paid.

Why the class rule decides

Growth from roughly $0.6M to $21.6M is meaningful, but a $1M to $8M advised book would still equal about 5% to 37% of the entire measured system before stress from borrower repayment or the queue. The shared version-1 size-floor rule therefore decides first. Reopen after reconciled TVL stays above the size floor for 30 consecutive days. Then review borrower-level financials and verification, legal claims and jurisdictions, manager and KYC controls, defaults and recoveries, proposed-size queues and named liquid onchain or regulated-credit alternatives.

Research status

This is a capacity-unproven record for cSigma Finance, not a quality rejection or approval. Reported TVL says how big the venue is, not what the client owns, who can change the rules, or how a position exits at a proposed size. The individual review opens when the protocol clears the size floor.

Sources

The claims above trace to these. Where a number could not be independently verified, the thesis says so.

Inherited controls

The research above describes the protocol layer. Every position also inherits the asset it holds and the chain it settles on. The layer with the most administrative power sets the position’s effective control; that describes control, not quality or suitability.

ChainVerdictControlControl constraint
Arbitrum OneApproved with limits Mixed control a single sequencer orders >99% of transactions and admin keys can upgrade bridge contracts on a ~7-day timelock.
EthereumApproved No freeze key No sequencer, no upgrade key, no operator who can be compelled. Rule changes require social consensus.
BaseApproved with limits Mixed control Coinbase, one regulated US company, operates the only sequencer, and admin keys can upgrade bridge contracts within ~7 days.
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