Coinbase

Our assessment

Coinbase answers the solvency question differently from every other venue in this table. As a listed company it files audited financial statements quarterly with the SEC, which tells an outside reader more about the business behind the exchange than any attestation programme does. What it does not offer is the ability to check your own balance against a published reserve total.

Public-company disclosure as the core argument

The filings are the substance here: audited, quarterly, and retrievable from the regulator's own archive rather than from company marketing. Add long-standing US licensing including a New York virtual currency licence, and the corporate picture is clearer than at any competitor here. For readers whose main worry is whether the business behind their balance is solvent, that is the strongest evidence available in this comparison.

The missing piece our rubric asks for

Coinbase has argued publicly that an annual audit by a major accounting firm is a better instrument than a Merkle-tree proof. That is a defensible position, and it still scores as a fail on our reserve indicator, because the two answer different questions: an audit tells you what the company reported at a date; a per-account proof tells you your money was counted. It does publish proof of reserves for wrapped assets such as cbBTC, where the backing is a discrete pool.

Verification friction

Several of its public pages — fees, help centre, legal — return an automated-access block. Under our rubric that scores partial rather than fail, because the documentation exists and a person can read it, but it means a reader cannot independently re-run the checks the way they can with most of this group. It is the largest single reason the score sits below venues with weaker corporate disclosure.

Who it suits

Coinbase fits readers who prioritise a regulated, audited, US-listed counterparty and are willing to pay retail pricing for it — particularly first-time buyers who value familiarity and support over fee optimisation. Traders who want per-account reserve verification or the lowest fees will do better elsewhere in this table.