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How to Buy Optimism (OP): Step-by-Step Guide for Beginners

Optimism is a layer-2 network built on top of Ethereum, with faster and cheaper transfers. We explain what the OP token does, what makes it risky and how to buy it step by step.

Aspiro Editorial · 18.10.2026

What Is Optimism?

Optimism is a rollup, a layer-2 (L2) network for Ethereum. Transactions are executed on Optimism itself, and the final data is recorded on Ethereum. That way, users get Ethereum's security while paying noticeably lower fees.

The technology is called "optimistic" because the network assumes transactions are honest by default and allows time to challenge an error. That's why withdrawing back to Ethereum through the official bridge takes about a week.

Other layer-2 networks are also built on Optimism's open-source code, the OP Stack. The OP token is used for governance: holders vote on protocol changes and on allocating funds for ecosystem development.

Optimism Risks

How to Buy Optimism (OP): A Beginner's Guide

Storing OP: Which Option to Choose

GoalWhere to keep itWhy
I trade using signals and levelsOn the exchangeStop-loss orders and selling work without delay
I'm holding long termEthereum-compatible wallet with OP Mainnet supportYour coins don't depend on what happens to the exchange
I'm holding a large amountHardware walletThe keys never leave the device

Our affiliate link. If you decide to open an OKX account, please sign up through it: it's free for you and doesn't change your terms. If you trade, the exchange pays Aspiro an affiliate bonus, which goes toward developing our apps and the free Aspiro Academy. We have no access to your account, funds or trades.

Open an OKX account via our link Step-by-step guide

  • You don't need a whole OP coin: you can start with a small amount.
  • Only invest what you're prepared to lose.
  • Trading? A stop-loss is mandatory; holding long term? Use your own wallet.

Frequently Asked Questions

How is Optimism different from Arbitrum?

Both are optimistic rollups for Ethereum. They differ in their teams, fault-proof technology, ecosystems and governance structures.

Why does withdrawing from Optimism to Ethereum take so long?

Through the official bridge, a withdrawal waits out a period during which anyone can challenge an invalid transaction. This is usually about a week. Going through an exchange is faster.

Do I need OP to use the network?

No. Fees on Optimism are paid in ETH. OP is needed for governance voting.

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OKX guide: sign-up and first trades →

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