An initial exchange offering (IEO) is a token sale in which a centralized cryptocurrency exchange sells a new project's tokens to its own users. Buyers pay from their exchange accounts, the exchange handles identity checks and token distribution, and the token usually starts trading on that exchange soon after the sale. The exchange typically charges the project a fee or takes a share of tokens.
IEOs emerged in 2019 as a successor to the initial coin offering (ICO), whose reputation had been damaged by fraud and failed projects. They sit between ICOs, where projects sell directly from their own websites, and initial decentralized offerings (IDOs), which run on decentralized exchanges. Neither is the same as a security token offering (STO), which is structured from the start as a regulated securities sale.
Initial exchange offering in plain terms
Imagine a new snack brand that, instead of selling from its own website, gets a big supermarket chain to stock its first batch. Shoppers trust the supermarket more than an unknown brand, and they can pay at the same tills they always use. The supermarket checks the supplier a little and takes a cut of each sale.
An IEO is that arrangement for a new token. The exchange acts like the supermarket: it lists the sale on its platform, lets its existing customers buy with balances they already hold, and puts the token on its shelves for trading once the sale ends. Buyers are leaning on the exchange's name, which is why its checks matter so much.
History
The model took off with Binance Launchpad's sale of BitTorrent's BTT token on 28 January 2019. The sale ran in two sessions, one priced in BNB (BNB) and one in TRX, raised about $7.2 million and sold out in under 20 minutes, according to contemporary reports; Binance's chief executive said technical problems slowed it. Other exchanges, including Huobi, OKEx and KuCoin, launched similar platforms that year.
The boom cooled within months as many IEO tokens fell below their sale prices. On 14 January 2020 the U.S. Securities and Exchange Commission (SEC) published an investor alert on IEOs. It warned that they may be conducted in violation of federal securities laws, that a platform selling securities may need to register as an exchange or broker-dealer, and that there is no such thing as an "SEC-approved" IEO. From 2021 much of the activity moved on-chain to IDOs and DEX launchpads, although exchange launchpads continued to run sales and token distributions.
How an IEO works
- Application and review. The project applies to the exchange, which reviews the team, whitepaper and tokenomics. The depth of this due diligence varies by exchange and is rarely published.
- Terms. The project and exchange set the price, the share of supply offered, the soft cap and hard cap, per-user limits and vesting for team tokens.
- Eligibility. Buyers must pass the exchange's know your customer (KYC) checks, and residents of restricted countries are excluded. Many platforms require users to hold the exchange's own token to qualify, often through a snapshot of balances or a lottery.
- Sale. Users commit funds held on the exchange; demand above the cap is scaled back pro rata or by lottery.
- Distribution and listing. Tokens are credited to buyers' accounts and trading opens on the exchange, sometimes on the same day.
Benefits and risks
For projects, an IEO offers access to a large user base and a near-certain listing. For buyers, the appeal is convenience, the exchange's screening and immediate liquidity after the sale. Holders of exchange tokens such as BNB also saw launchpad access as a reason to hold them.
The risks are significant:
- Conflicts of interest. The exchange is paid by the project it is vetting and profits from trading in the token afterwards.
- Custody. Buyers' funds and new tokens sit on a centralized exchange (CEX), exposing them to platform failure or hacks.
- Post-listing volatility. Tokens with a small circulating supply and large locked allocations can surge on listing and then fall as each token unlock arrives, a pattern associated with pump and dump schemes when insiders sell early.
- Legal status. Whether a token sold in an IEO is a security turns on the Howey Test in the United States and, in the European Union, on rules such as MiCA; the exchange's involvement does not settle the question.
Readers can compare the IEO model with token pre-sales to private investors and with the traditional initial public offering (IPO), which it borrows its name from but not its legal protections.