Beyond the basic pitch of "buy tokens to fund a project," a token sale usually unfolds in stages rather than a single event. Early rounds (seed and private sale) are offered to venture funds, angel investors, and strategic partners at the lowest prices, often with minimum buy-ins in the thousands of dollars. Only later does the sale open to retail participants through a public round, typically run as an Initial Coin Offering (ICO), an IEO hosted by an exchange launchpad, or an Initial DEX Offering (IDO) on a decentralized exchange.
Each format carries a different trust model. In an ICO, a project sells directly to buyers with essentially no external vetting, so due diligence rests entirely on the investor. IEOs shift that burden to the hosting exchange, which screens the project and lists the token immediately after the sale, reducing the risk of the token having no market to trade on. IDOs automate the process further: funds raised are paired with the new token in a liquidity pool the moment the sale ends, giving instant, permissionless trading without KYC, though usually with thinner liquidity and higher price volatility than a centralized listing.
Tokens sold to early investors almost always come with a vesting schedule, releasing holdings gradually over months or years, often after an initial lock-up "cliff." This discourages early backers from dumping large amounts of supply right after listing and helps keep price discovery orderly. Because token sales have historically attracted scams and unregistered securities offerings, regulators in many jurisdictions now require disclosures or licensing depending on how the tokens are structured and marketed.