How to buy Arbitrum (ARB) in the US

Some cryptocurrencies are more than a digital asset. Many offer utility that helps the crypto ecosystem work. Arbitrum is one such currency. Let’s take a look at how it works and why it’s useful.

What is Arbitrum (ARB)?

Arbitrum (ARB) is an important element of the Ethereum ecosystem that makes transactions faster and cheaper. In more technical terms, it’s what’s called a Layer-2 scaling solution, with Layer-2 being secondary blockchains on top of the main network layer.

It uses a piece of tech called Optimistic Rollups. This is where multiple transactions are bundled into one and submitted to the main Ethereum network. Doing this increases efficiency, reduces network congestion and reduces the computational effort and associated cost, known as ‘gas fees’, that users pay to make transactions.

With Arbitrum, developers and users can develop decentralized applications (dApps) that perform better than they would if deployed directly to the Ethereum network.

As of October 2025, Arbitrum has a market capitalization (market cap) of $2.35bn, with a circulating supply of 1.41bn, making it number 47 in the list of tradable assets by market cap on the Crypto.com exchange.

Within the Arbitrum ecosystem is the Arbitrum Decentralized Autonomous Organization (DAO). This organization allows participants to self-govern, deciding collectively on matters like protocol, updates, use of treasury funds and security. 

To participate in the DAO, users must hold Arbitrum governance coins, which they use to vote either directly or by using their coin to delegate. The more coins held, the more votes a user gets.

Why do people buy and invest in Arbitrum?

People buy and invest in Arbitrum for a few reasons:

• To speculate on its value
• To use it for payments within the Ethereum ecosystem
• To use it as a voting token

Those who are optimistic about growth may view Arbitrum as a worthwhile investment. Although it’s always important to remember that crypto assets can change value quickly.

With an all time high of around $2.47 and an all time low of around $0.27 since its public launch in August 2021, Arbitrum has lost 660.35% of its highest value, as of October 2025. In the seven days to October 20th 2025, Arbitrum dropped in price by just under 6%.

For those who are pessimistic, it could represent fair value. And for those with no interest in speculating on the value of Arbitrum, there may be other reasons to buy.

One of the core advantages of decentralized finance is the high level of potential innovation. Decentralized financial systems are built upon interoperable protocols, meaning that users can quickly develop new products and services. Because the system is open-source, all participants can theoretically create new combinations of protocols.

To participate fully in this decentralized system, users must first own digital assets, either by buying or earning them. Arbitrum is one such asset, or coin, that allows participation in the Ethereum network. And while owning Arbitrum doesn’t demand that the holder participate in developing new products or services, it does afford Arbitrum some utility beyond being a simple store of value.

How to buy Arbitrum in 5 steps

Step 1: Choose a cryptocurrency platform

The first choice you’ll make is where to buy Arbitrum. Security, fees and ease of use should guide your decision. Platforms vary widely, but the Crypto.com App and Crypto.com Exchange stand out for their mix of user-friendly design, strong security standards and wide selection of assets.

When you buy Arbitrum on Crypto.com, you benefit from competitive pricing, simple navigation and integrated portfolio tools. You can also switch seamlessly between crypto and traditional payment methods, which makes it convenient to manage your investments in one place. 

Step 2: Create and verify your account

After choosing your platform, the next step is registration. Signing up is simple: provide your name, email and password. To comply with regulations, you’ll also need to verify your identity (known as KYC). This usually involves uploading a photo ID and confirming personal details.

Verification is more than a formality – it protects your account and unlocks full platform features. On Crypto.com, completing KYC also gives you access to higher transaction limits and faster funding. Once verified, you’re ready to add funds and start trading.

Step 3: Deposit funds

To buy ARB, you’ll need to add money to your account. Platforms like Crypto.com offer several deposit options: bank transfer, debit or credit cards and even crypto-to-crypto transfers.

Bank transfers are cost-effective and suited for larger amounts, though they may take a couple of business days. Debit and credit cards are instant, making them ideal if you want to buy Arbitrum quickly, though fees can be slightly higher. If you already own another cryptocurrency, you can transfer it into your account and convert it to ARB directly.

Step 4: Buy ARB

On the Crypto.com App, navigate to Arbitrum (ARB), enter the amount you want to buy and review the order details. You’ll see the live price and the amount of ARB you’ll receive. Confirm the order and, within moments, the ARB will appear in your account.

 Step 5: Store your Arbitrum safely

Exchanges like Crypto.com hold assets in institutional-grade custody systems, which offer strong protection. For many beginners, keeping coins within the app is the simplest option.

However, for longer-term holders or those managing larger amounts, moving ARB to a personal wallet provides extra peace of mind. There are two main types:

• Hot wallets – Apps connected to the internet, convenient for quick access.
• Cold wallets – Hardware devices or paper wallets kept offline, offering stronger protection from hacks.

Strengths and weaknesses of Arbitrum

Strengths

• Faster and cheaper transactions within the Ethereum ecosystem. 
• For people already holding Ethereum with an interest in participating in its decentralized financial ecosystem, Arbitrum may be a useful asset to hold with some potential investment value.
• It’s highly scalable, with an active developer community,  which could quickly lead to impressive innovation, including new products.

Weaknesses

• People may be put off from Arbitrum because of its reliance on the underlying Ethereum cryptocurrency. 
• Over time, it may face competition from other Layer-2 solutions that can also make Ethereum transactions faster and cheaper. 
• As with all cryptocurrencies, price volatility is something to keep in mind. Cryptocurrencies can change value quickly.

What to know before buying Arbitrum

Before buying Arbitrum, it’s important to understand the dynamics of cryptocurrency in general and the specific risks of crypto price volatility. Cryptocurrencies, regardless of purpose or underlying ecosystem, can gain or lose value in line with gains or reductions in supply and demand.

Anyone thinking about buying Arbitrum should do their own research to understand the broader utility of the asset, the potential for growth, the potential for loss and align any investment with their own personal financial goals and circumstances. Never invest more than you can afford to lose.

ARB investment tips for beginners

Investing in any asset class, including crypto, is not risk free. Understanding the risks and being strategic can help you align your investment with your financial circumstances and goals.

Start small

Starting small can help manage the risks associated with investing. It can also be a useful way to learn about buying Arbitrum and other assets. Set a budget for investing and stick to it. Never invest more than you can afford to lose.

Be patient and set limits

It can be tempting to sell an asset when you think it’s losing value. But assets can increase and decrease in value quite quickly, especially crypto assets. If you’re concerned about the value of an asset in which you’ve invested, it isn’t always smart to immediately sell as the value may return.

Instead of buying and selling based on market dynamics as they happen in real time, set some limits for yourself beforehand. For example, write down the threshold at which you would sell an asset if it were losing value and a threshold at which you’d buy if it were gaining value.

Dollar cost averaging

This investment strategy can be useful for managing losses over the long term. Instead of trying to ‘pick’ the right time to invest, you set a fixed amount of dollar value investments to make at regular intervals, for example “$200 once per month.”

The volume of assets you buy will vary according to the value. For example, if Arbitrum is worth $1 in month 1 and $2 in month 2, the average cost per asset you’ll have paid is $1.50. This approach may help you stick to a budget and will also help you work out an average cost per share over time, even with rapidly changing asset values.

Dollar cost averaging also helps remove the need to time your purchases carefully while partially protecting against market drops. Let’s say you’ve set aside an annual budget of $2,400 per year ($200 per month). You start in January when the value of Arbitrum is $1.50. If the value drops in January, your unrealised loss applies only to the January investment, not your entire budget.

And let’s say you continue investing $200 per month and value goes up to $2.50 in June, that gain will apply to all of the investments you’ve made up until then.

Diversify your crypto portfolio

Diversification is an established investment risk mitigation strategy. If you allocate all investment capital into one asset, the risk is concentrated. Let’s say you invest entirely in Arbitrum and the value drops by 50%. The total value of your investment drops by the same amount. 

If you invest 25% of your capital into Arbitrum, 25% into Bitcoin, 25% into Solana and 25% into Tether and the value of Arbitrum drops by 50%, and the rest remain stable, that’s a total drop in value of 12.5% (50% of a 25% chunk of your portfolio.

By diversifying across different crypto assets and different asset types, you spread the risk, while also diluting the potential gains.

What affects the price of Arbitrum?

The price of Arbitrum changes in relation to a number of factors including its utility, usage, market sentiment, regulatory environment, Ethereum developments and upgrades and broader crypto market trends and developments.

Because Arbitrum is useful within the Ethereum ecosystem, demand for the asset can vary depending on how many projects and developments are going on within that system. The busier developers are, the more demand there will be for Arbitrum and the higher its value should go.

Like many digital assets, the price can also respond to broader crypto market trends. New regulations, laws, new stories and even macroeconomic trends involving employment, inflation, interest rates and stock prices can influence crypto prices.

As a very general rule, when interest rates go down, people may become more attracted to alternative investments like crypto. This is because traditional asset classes like cash and bonds become less attractive in a low rate environment.

For now, one of the major influential factors on the price of Arbitrum is demand from within the developer community. As Layer-2 solutions become more widely needed for supporting new developments and protocols, demand for Arbitrum may increase. This, combined with more generalized demand for crypto assets, may drive the price of Arbitrum in the short term.

Arbitrum outlook

Analysts are yet to reach a solid consensus on the longer term outlook for Arbitrum. A lot will depend on tech upgrades, partnerships and ecosystem expansion.

Crypto analyst Usman Ali writing for Brave New Coin believes the longer term outlook for Arbitrum is strong, but warns of some price corrections in the short term. Other analysts, including Max Clark at Blockchain Reporter, are optimistic that demand for Arbitrum will continue to grow.

Clark says “Arbitrum continues to expand its reach as a major force in the Ethereum Layer 2 space. With over $1.9 billion in inflows, it now leads cross-chain bridge growth, marking a pivotal shift in how assets move across networks and strengthening the overall Arbitrum (ARB) market outlook.”

Analysts at Bitcoin Consensus believe that Arbitrum’s recent growth is promising, but question its sustainability, citing concerns over the asset’s response to broader trends in cryptomarkets.

Valdrin Tahiri, writing for CCN.com was cautious back in March 2025, saying Arbitrum faced significant challenges ahead. 

FAQs about Arbitrum (ARB)

What is Arbitrum used for?

It’s a Layer-2 scaling solution designed to make the underlying Ethereum blockchain faster and cheaper. There is potential that it could find use outside of the Ethereum ecosystem, but for now it is solely an Ethereum technology.

Is Arbitrum (ARB) a good investment?

Whether or not Arbitrum (ARB) is a good investment will depend on your own goals and risk profile. . Further, a lot depends on adoption and confidence in Arbitrum’s capacity to serve new functions and meet increasing demand. Analysts aren’t in agreement on the short-term outlook. And as with all investments, it’s important to remember that the value can go up or down quickly.

How safe is it to buy Arbitrum?

Buying Arbitrum through a trusted, centralized exchange that is voluntarily compliant with a range of global regulations, like Crypto.com, provides certain protections and reassurances. But no investment is 100% risk free.

Can Arbitrum realistically increase in value significantly?

Yes. But it can and has decreased in value significantly, too. Cryptocurrencies are more volatile than traditional asset classes like stocks and bonds, so their value can go up or down quickly with little warning. This is why it’s important to only invest what you can afford to lose and to diversify your portfolio to match your risk tolerance.

What makes Arbitrum different from other cryptocurrencies?

As well as being a store of value, it’s also a useful digital asset for facilitating faster and cheaper transactions off-chain within the Ethereum ecosystem.

Ready to get started?

1. Sign up on Crypto.com
2. Verify your account
3. Deposit funds into your account
4. Buy Arbitrum (ARB) today

Important information: This is informational content sponsored by Crypto.com and should not be considered as investment advice. Trading cryptocurrencies carries risks, such as price volatility and market risks. Before deciding to trade cryptocurrencies, consider your risk appetite. Services, features and other benefits referenced in this article may be subject to eligibility requirements, token holdings, and may change at the discretion of Crypto.com. Staking rewards, fee reduction, and other benefits referenced in this article may be subject to eligibility requirements, token holdings, and may change at the discretion of Crypto.com. 

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