What is an ICO, and how is it different from an IEO, an IDO and other initial token sales? In this lesson, we'll look at how projects sell tokens before they hit the market, who else holds those tokens besides you, why the price after listing often falls short of expectations, and how to approach a token sale with a cool head before you send any money.
- An ICO is a token sale run directly by the project, an IEO runs through a centralized exchange, and an IDO runs through a decentralized launchpad.
- An intermediary vets the project but guarantees neither its quality nor a rising price.
- The main risks are fraud, weak tokenomics, and early investors selling after token unlocks.
- Who can take part depends on the country, and many sales are closed to residents of certain jurisdictions.
What an ICO is and where it came from
An ICO (Initial Coin Offering) is the first public sale of a project's coins. The project issues tokens and sells them directly to participants, usually for crypto. The money goes toward development, and buyers are left holding tokens that, if all goes to plan, will start trading on exchanges.
The format peaked in 2017, when hundreds of projects, often with nothing more than a website and a whitepaper, raised money through Ethereum smart contracts. Many never shipped anything, and some turned out to be outright scams. In response, regulators, above all the SEC in the US, began treating many ICO tokens as securities, and the market gradually moved on to other formats.
It's easy to see where the risk comes from: in a classic ICO, there's nobody between you and the project team. No exchange has vetted the project, no regulator has approved the offering document, and all the due diligence falls on you as the buyer. If something goes wrong, you most likely won't get your money back, because blockchain transactions are irreversible.
A general term for any sale of tokens before or at the moment they hit the market. ICOs, IEOs and IDOs are all types of token sales, and what sets them apart is who organizes the sale.
IEOs, IDOs and other formats
An IEO (Initial Exchange Offering) takes place on a centralized exchange. The exchange picks the project itself, runs the sale among its verified users, and usually opens trading in the token shortly after the sale ends. That's more convenient for participants: you're not sending money off into the unknown, and there's less chance it simply vanishes.
An IDO (Initial DEX Offering) is held on a decentralized launchpad. Here you connect a wallet and often need to hold or stake the platform's token to earn the right to buy. There are also launchpools, where new tokens are handed out for staking coins you already own, and some projects run public sales on their own websites.
But the key thing doesn't change with the format: you're buying an asset with no market history. An intermediary can take some of the risk off the table, but it isn't responsible for where the token's price will be a month later.
There are also ways to distribute tokens without selling them: airdrops for activity, and points programs where you earn points for using a product and later exchange them for tokens. Here you pay with your time, and sometimes with a deposit in the protocol, but the risks are similar: an unclear starting price, token unlocks, and phishing sites offering to "check your airdrop eligibility."
| Format | Who organizes it | How to take part | Main risk |
|---|---|---|---|
| ICO | The project itself | A transfer to the project's address or smart contract | Fraud, no vetting |
| IEO | A centralized exchange | An exchange account with completed KYC | Price drop after listing |
| IDO | A decentralized launchpad | A wallet, often plus a stake in the platform's token | Smart contract bugs, phishing copies |
| Launchpool | An exchange | Staking coins you already hold | Volatility of the new token after distribution |
How token sale economics work
Before you size up a sale, look at who holds the tokens. The public round usually comes after seed and private rounds, where funds buy in at a lower price. The team gets its own share, and part goes to the project treasury and ecosystem development.
These shares are locked under a vesting schedule: for example, a year with no unlocks, followed by monthly releases. An early investor who bought in at a fraction of your price will want to sell as soon as they can. That's why it's important to compare market cap with fully diluted valuation at launch. There's more on this in the lesson on market cap and trading volume.
Then there's the question of why the token is needed at all. If the product works perfectly well without it, and the token only serves to raise money and run votes, demand for it rests on expectations alone rather than real use.
- What share of the tokens is sold publicly, and at what price
- How much the team and funds receive, and at what price they got in
- When unlocks begin and how large they are
- What portion of the tokens becomes available on listing day
- What the token is actually used for in the product
Sometimes the valuation of the whole project is already high while the market cap looks modest, because only a small fraction of the tokens is in circulation at launch. More often than not, this setup means months of selling pressure as tokens unlock.
The main risks of taking part
The most obvious risk is fraud. The team vanishes with the money, fake websites for popular sales pop up, and people in messaging apps pitch "private rounds" with guaranteed multiples. The warning signs of such projects are covered in detail in the lesson on how to spot scam projects.
Even an honest project can disappoint: the product gets delayed, the token turns out to be unnecessary for the service to work, or the whole market drops. Liquidity after listing can be thin, and the price is especially unstable in the first few days, as some participants lock in quick profits while others buy on emotion.
Don't forget the legal risks either. Public token offerings are regulated in many countries: in the EU, for example, MiCA sets requirements for the crypto-asset white paper. Sales are often closed to residents of the US and a number of other countries, and using a VPN to get around the restrictions can get your account blocked and your tokens withheld. Rules change, so check the current requirements in your country, including the tax ones.
Legitimate sales don't guarantee a price. So if someone promises the token will multiply after listing, or a private individual offers to sell you an allocation, that's your cue to stop.
How to approach token sales with a cool head
Initial token sales are one of the riskiest corners of the market, so only put in what you can afford to lose. Before taking part, read the whitepaper and find out who's behind the project and whether it has a working product or at least a test version. How to do this systematically is covered in the lesson on how to evaluate a new project.
Train yourself not to jump on the first sale you see. Instead, follow a few that have already happened. Compare the promises in the announcements with how the tokens actually performed a week, a month and six months after listing. Stats you gather yourself like this are more reliable than any forecast.
Decide before you buy what you'll do after listing. Some people sell part of their tokens right away to recover their initial investment, while others hold everything according to their own plan. There's no one-size-fits-all approach, but deciding in advance keeps you from acting on impulse in the first hours of trading, when the price swings the most.
And cap how much you put in. Even projects that made it through the selection process at major exchanges end up with very different token outcomes, so one bad bet shouldn't take a noticeable bite out of your overall capital.
- Find the official announcement on the exchange's or launchpad's website, not in a messaging app
- Read the whitepaper and tokenomics, and find the unlock schedule
- Check whether the sale is open to residents of your country
- Decide in advance how much you're prepared to lose and what you'll do after listing
- Only take part through the official interface, and double-check contract addresses
Right after a listing, fake tokens with the same name and ticker show up on-chain. Before buying on a decentralized exchange, check the contract address against the one listed on the project's website or in the exchange's announcement.
Pick one token that launched on a major exchange through an IEO or launchpool in the last six months. On CoinGecko or CoinMarketCap, compare its price on the first day of trading with the current price, check what share of the tokens is already in circulation (market cap vs. FDV), and find the date of the next unlock. Sum it up in two or three sentences: who won from this sale, who lost, and whether you could have seen it coming from the tokenomics.
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FAQ
Why is an IEO safer than an ICO?
The exchange vets the project itself and runs the sale on its own platform, so the risk of sending money to scammers is lower. But the exchange guarantees neither the token's price after listing nor how the project develops.
Do I need KYC to take part in a token sale?
For an IEO on a centralized exchange, almost always. With an IDO, it depends on the platform: some launchpads ask you to verify your identity, others don't. But no verification doesn't mean the sale is any safer.
Why do tokens often drop in price after listing?
Early participants take profits, the team and funds gain access to their shares as tokens unlock, and the hype around the launch dies down. You can usually gauge how strong this pressure will be from the tokenomics in advance.
Is taking part in an ICO taxable?
It depends on the country. In many jurisdictions, paying for a sale with crypto already counts as a swap, which makes it a taxable event for the coin you give up, while the gain on the new token itself is calculated when you sell it. Check your local rules and keep records of every purchase.
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