An IEO (Initial Exchange Offering) is a token sale conducted end-to-end on a centralised cryptocurrency exchange. Unlike ICOs (project-direct) or IDOs (decentralised launchpad), every step of an IEO — from project vetting to token distribution — happens through the exchange's infrastructure. Here's the complete lifecycle from both the project's and investor's perspective.
Phase 1: Project Application and Exchange Vetting (4–12 Weeks)
The project submits an application to the exchange's launchpad program. Exchange review covers: team identity verification (all founders doxxed), smart contract audit certificate, whitepaper completeness and technical plausibility, tokenomics review (FDV, vesting, allocation structure), legal assessment (jurisdiction, securities classification), and business case evaluation (market size, traction, competitive differentiation). Acceptance rates: Binance under 1%, KuCoin under 5%. Most applications are rejected.
Phase 2: IEO Preparation and Announcement (2–4 Weeks)
Once accepted, the project and exchange finalise terms: token price, hardcap, allocation percentage for the public, KYC requirements, geographic restrictions, and vesting schedule. The exchange publishes an official IEO announcement — typically 1-2 weeks before the sale opens. The announcement triggers: investor KYC completion, native token accumulation (BNB for Binance, KCS for KuCoin), and whitelist registration where required.
Phase 3: Investor Eligibility Period (1–7 Days Before Sale)
Investors prepare: complete any required whitelist registration, ensure account is fully KYC-verified (can take 24-72 hours), hold the required native token in the correct wallet (spot wallet for Binance, not savings), and review the project terms. For snapshot-based systems (Binance), the 7-day average BNH balance calculation begins. For Bybit, account value tiers are assessed.
Phase 4: The Sale Window (24–72 Hours)
The subscription or purchase window opens. Investors commit the accepted currency (USDT, BNH). For subscription models (Binance, Bybit): all subscriptions are collected, then pro-rated at close. For direct purchase models: tokens sold until hardcap is reached. The exchange closes the window when the subscription period ends or hardcap is filled.
Phase 5: Allocation and Distribution (1–3 Days)
Exchange calculates final allocations (subscription model: your subscription ÷ total subscription × available tokens). Tokens distributed directly to investor exchange wallets. Unused subscription funds returned automatically. No wallet interactions, no gas fees for the investor — everything handled by the exchange.
Phase 6: Exchange Listing and Trading (Within 48 Hours of Distribution)
The token lists on the exchange's spot market — a trading pair opens (TOKEN/USDT, TOKEN/BTC) and investors can buy, sell, or hold. This is the first moment of public price discovery. TGE listing price often differs from IEO price — above (pump) or below (broken listing) depending on demand and market conditions.
For the IEO subscription strategy to maximise allocation, see our IEO subscription strategy guide. For how to evaluate whether an IEO's tokenomics are well-designed before participating, see our IEO tokenomics red flags guide. For the complete IEO overview, see our complete IEO guide.
Glossary
- Subscription Period
- The window during which investors commit funds to participate in an IEO — used in proportional allocation models like Binance Launchpad.
- Hardcap
- The maximum total fundraise amount — when reached, the IEO closes and no further contributions are accepted.
- TGE (Token Generation Event)
- The moment tokens are created and distributed — for IEOs, this coincides with the exchange spot market listing.
Disclaimer
Important: IEO mechanics vary by exchange. Always read the specific launch announcement terms. This guide is educational only. CryptoPresaleNews.com is not a licensed financial advisor.
