What happened
On 14 April 2021 Coinbase Global's Class A common stock began trading on the Nasdaq Global Select Market under the ticker COIN. It reached the market through a direct listing rather than an initial public offering.
Nasdaq's own trader alert the previous day set a reference price of 250.00 dollars and then added a sentence that most coverage will skip: "Please note that the reference price is NOT an offering price and nobody has purchased or sold shares at that price. The opening public price will be determined based on buy and sell orders in the opening auction on Nasdaq."
What it changes
The distinction is not a technicality, and Coinbase's registration statement lists the differences itself. It covers "the registration of the resale" of shares by existing stockholders. The company sold nothing and raised nothing, which the filing states flatly: "we will not receive any proceeds from the sale of such shares."
The second difference is who sets the price. In an underwritten offering, banks build a book of demand and pick an offer price. Here, in the filing's words, "There are no underwriters. Consequently, prior to the opening of trading ... there will be no book building process and no price at which underwriters initially sold shares to the public." Goldman Sachs and others were engaged, but as financial advisors, not underwriters assuming risk on resales.
The third is supply. The S-1 records that "None of our registered stockholders or other existing stockholders have entered into contractual lock-up agreements", against the customary 180 days in an offering, so existing holders could sell "including immediately upon listing."
What it does not change
A listing changes who can own the shares, not what the business is. Coinbase remains an exchange that holds customer assets, and its filing is candid that the revenue is concentrated: "For the year ended December 31, 2020, transaction revenue represented over 96% of our net revenue", on total revenue of 1.277 billion dollars for 2020.
The named risk follows from that: net revenue "is substantially dependent on the prices of crypto assets and volume of transactions conducted on our platform."
It also changes nothing about custody. Owning stock in an exchange is a bet on the company's fee income. It is not a claim on any bitcoin, and it is not the same as holding coins.
Context
Direct listings are not new, Spotify and Slack used the route, but they are unusual, and they suit a company that wants a public market without needing cash. The mechanism has a known cost: without a book build there is no pre-set price, and Nasdaq's warning about the reference price exists because that number is routinely misread as one.
Whether public-market scrutiny changes how a crypto exchange operates, and whether revenue this concentrated in trading fees holds up across a full cycle, are open questions that a first day of trading cannot answer.