Top cryptocurrency 2021 by value: Bitcoin, Ether, Dogecoin, BinanceCoin and more

Top cryptocurrency listed — Bitcoin, Ethereum, Litecoin, Dogecoin, Binance
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Editor's note

Be careful with cryptocurrency. The crypto market is highly volatile and we do not recommend any particular cryptocurrency.

Unsurprisingly, the top cryptocurrency is Bitcoin. And it has been for years. But when it comes to other cryptocurrencies, things are a lot more fluid. If fact, the market moves so fast that what's boom today could be bust tomorrow. 

That's why it's important that you do know about Bitcoin alternatives before taking the plunge and investing in what can be a risky area. The crypto market is far more volatile than traditional stocks, with some coins growing in value swiftly, then dropping just as rapidly. Bitcoin, for instance, rose from $45,000 in March to a high of $63,000 in mid-April — then plunged to $35,000 in May before ticking up to $36,000 in June.

If you do decide to buy cryptocurrency, a good piece of advice is never to spend more than you can afford to lose. Calculate the effect on your investment if the coin you owned were to fall by 20%, 50% or even 80% overnight and weigh up whether you could afford to hold on in the hope that values rose again, or if you'd be tempted to sell at a loss.

That said, even if you're not thinking of investing, cryptocurrency is a fascinating subject.

While we all know about Bitcoin, there are hundreds, if not thousands, or other cryptocurrencies. Many are alternative — supposedly improved — versions of Bitcoin, but others, like Ethereum, Cardano and Chainlink, are much more than just a currency. And then there's Dogecoin, which started off as a joke but is now one of the most valuable cryptocurrencies, plus other "memecoins" such as Shiba Inu coin.

In our guide to the top cryptocurrency performers, we outline the stories behind some of the key cryptos to be aware of, plus their current value, latest news and more.

Latest cryptocurrency news (updated July 7)

What is the top cryptocurrency by value?

So, which is the top cryptocurrency right now? One approach is to look at market capitalization — essentially the total dollar value of a company's shares of stock. And in that regard, it's hard to see beyond Bitcoin and Ethereum, which have sizable leads over their respective competition.

You can also look at the price of an individual cryptocurrency share, or coin, which is useful for knowing how well (or otherwise) a crypto is performing, but it doesn't always tell the full story. So we're sticking with market cap for this guide to the top cryptocurrency performers right now.

That said, many of the other crypto projects listed below are super interesting and certainly worth looking further into. And with new cryptocurrencies such as SafeMoon and Chia springing up seemingly every day, we'll be updating this top cryptocurrency list regularly.

Here are all the top cryptocurrencies (by market cap as of July 7).

1. Bitcoin (BTC)

Top cryptocurrency listed — Bitcoin

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Bitcoin market cap: $649 billion

Bitcoin value: $34,692

The Bitcoin story: Bitcoin has been around since 2008 and is the blue chip cryptocurrency. It has, by far, the largest market cap, the highest coin value, and the largest network of users. 

Bitcoin was created by an unknown person or group who goes by the name of Satoshi Nakamoto. It was supposed to be the cash of the future, and although you can use it today to purchase many goods and services, you wouldn’t use it to buy a cup of coffee because the cost of the transaction would be too high. 

Think of Bitcoin instead like the gold of the future: not really useful for daily transactions, but you want to have some for its stored value. It’s also like gold in that it has a limited supply, which is one of the things that makes Bitcoin so attractive to investors: a total of 21 million Bitcoins will ever be released, which makes Bitcoin inflation-proof. 

Bitcoin performance history: Like all cryptos, Bitcoin started out worth virtually nothing. In 2017 it took off from under $1,000 to over $20,000, but within a year was down around $4,000. In late 2020 it began skyrocketing again, this time from around $10,000 to a high of more than $60,000, before dropping sharply in May, mostly due to various Elon Musk tweets. It's been up and down since then and is currently worth around $35,000. 

How to buy Bitcoin: Bitcoin can be purchased on crypto exchanges such as Coinbase, Binance, and Kraken; at Bitcoin ATMs; on PayPal; and on Robinhood. Don’t be put off by the high price of a coin: you can invest as little as $25 in Bitcoin on Coinbase.

2. Ethereum (ETH)

Top cryptocurrency listed — Ethereum

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Ethereum market cap: $276.8 billion

Ether value: $2,378

The Ethereum story: If there is another contender for the top cryptocurrency title, it's Ethereum. But it doesn’t compete with Bitcoin. It’s important to note that many so-called cryptocurrencies aren’t straight-up currencies like Bitcoin. Some, like Ethereum, are instead unique technologies that also have a coin component. In Ethereum’s case, its currency is called Ether, and it can be used in applications run on the Ethereum platform. 

Ethereum is the leader in what’s known as these “smart contract” platforms. While Bitcoin was created for one use case — as a currency — Ethereum was founded by Vitalik Buterin in 2015 with bigger and broader ambitions. The blockchain it runs on is programmable, meaning it can run programs, or apps, in a decentralized way, i.e., on millions of computers at once. This opens up many possible use cases, from technology and finance to gaming and collectibles, making Ethereum an attractive investment.

It's also worth noting that a new version of Ethereum is coming soon. Among other things, Ethereum 2.0 will reportedly by 99.95% more environmentally friendly than the current model.

Ethereum performance history: In the past year, Ethereum’s price has shot up from around $200 to well over $3,000. In fact, it recently passed $4,000 for the first time in early May and reached an all-time high of more than $4,350 recently, but has fallen sharply recently and currently stands at around $2,370.

How to buy Ethereum: You can buy ETH on the major crypto exchanges, Robinhood, and PayPal.

3. Tether (USDT)

Top cryptocurrency listed — Tether

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Tether market cap: $62.3 billion

Tether value: $1

The Tether story: Tether is unique among the options in our top cryptocurrency list: it's the leader in the category of cryptocurrency known as “stable coins.” Why stable? Because they are pegged to a traditional currency, in this case the US dollar. 

For investors, these tokens offer the joint benefits of open blockchain technology and traditional currency. Tether was launched in 2015 and operates on the Ethereum platform. USD Coin is another stable coin, and many crypto folks think it’s a safer bet than Tether, citing a greater transparency.

Tether performance history: One Tether token = one USD. Always has, always will.

How to buy Tether: Buy, sell, and use Tether tokens at Coinbase, Binance, Kraken, and other major crypto exchanges.

4. Binance Coin (BNB)

Top cryptocurrency listed — Binancecoin

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Binance Coin market cap: $50.6 billion

Binance Coin value: $331

The Binance Coin story: Binance Coin was launched in 2017 by the Binance cryptocurrency exchange, the world’s largest crytpo exchange by volume. During its initial coin offering (ICO), it sold 100 million coins to the public at $0.15 per coin. Binance Coin can be used to pay transaction fees on the Binance exchange, to trade for other cryptocurrencies, and to pay for some goods and services. Every quarter, Binance uses 20% of its profits to buy back and destroy Binance Coins. This will continue until Binance buys back and destroys 50% of the total supply, making its coin scarcer and therefore more valuable.

Binance Coin performance history: Since launching in 2017, Binance Coin has made a long, slow climb to about $60 a coin, before shooting upwards in February 2021 and reaching more than $600 at one point. As with virtually all of the top cryptocurrencies, it suffered a major fall recently; it's currently trading at around $330.

How to buy Binance Coin: The best place to buy, sell, trade, and hold Binance Coin is Binance

5. Cardano (ADA)

Top cryptocurrency listed — Cardano

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Cardano market cap: $45.4 billion

Cardano value: $1.42

The Cardano story: Cardano, founded in 2017, is another Ethereum-like contender for the top cryptocurrency crown: a blockchain platform that supports applications, systems, and real-life business use cases. It’s a promising technology but, like all the others, has a lot of catching up to do with Ethereum in terms of its network size. 

What makes Cardano unique is that it is the first blockchain platform to evolve out of a scientific philosophy and a research-first driven approach. The development team consists of a large global collective of expert engineers and researchers, and the platform was built through peer-reviewed research.

Cardano performance history: Cardano was cruising along at about $0.10 from its founding in 2017 until early 2021, when it jumped to well over a dollar and was recently trading at around $2. Cardano had weathered the recent crypto market problems better than most, due to being one of the more environmentally friendly cryptocurrency options, but suffered a big fall recently and is now back to around $1.42.

How to buy Cardano: Cardano can be purchased on Coinbase, Binance, Kraken, and many other crypto exchanges.

6. XRP/Ripple (XRP)

Top cryptocurrency listed — XRP/Ripple

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XRP/Ripple market cap: $30.8 billion

XRP value: $0.66

The XRP/Ripple story: XRP’s claim to fame is that it's the fastest digital asset, enabling near real-time global payments anywhere in the world. As such, some payment providers use XRP to expand their reach, lower foreign exchange costs, and settle payments more quickly. 

XRP was launched in 2012 by a trio of developers, who then created a private company called OpenCoin, now called Ripple Labs, and gifted it 80 billion XRP. This is what makes XRP unique — it is, essentially, a for-profit platform, unlike almost every other crypto project in the world. 

Buyer beware: in late 2020, the US Securities and Exchange Commission filed suit against Ripple and its two cofounders, claiming they raised over $1.3 billion through an unregistered, ongoing digital asset securities offering (aka XRP). The lawsuit is still unsettled.

XRP performance history: Aside from a blip of a spike in December 2017-January 2018, XRP didn’t crack the $0.60 threshold until 2020. However it's grown throughout April and May is currently trading at around $0.79.

How to buy XRP: The easiest way to purchase XRP is on one of the big crypto exchanges such as Coinbase, Binance, or Kraken.

7. Dogecoin (DOGE)

Top cryptocurrency listed — Dogecoin

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Dogecoin market cap: $30.4 billion

Dogecoin value: $0.23

The Dogecoin story: Dogecoin bills itself as “the fun and friendly internet currency.” Launched in 2013 by software developers Billy Markus and Jackson Palmer as a satire of Bitcoin and the exploding popularity of crypto, it’s basically a Bitcoin clone with a cute dog meme for a mascot. 

Dogecoin has no real use (though some people use it to give small tips on social media), but it’s developed a growing fanbase that’s boosted the price of a Dogecoin from less than a penny a few months ago to about $0.40 today, making it one of the top cryptocurrency performers by market cap if nothing else. Dogecoin also started what is now known as the “memecoin” space. If you’re looking for the next big memecoin, it could be SafeMoon, which launched in March 2021 and already has over a million users. SafeMoon encourages investors to buy and hold by imposing a 10% fee on anyone who sells their tokens.

Dogecoin performance history: In early 2021, Dogecoin crossed the $0.05 threshold for the first time, then went to the moon in April, recently trading at an all-time high of $0.70. It dropped to below $0.45 following Elon Musk's appearance on Saturday Night Live, and at one point in May was as low as $0.27. However, its topsy-turvy year continued last month, when the news that it will be listed on the Coinbase Pro exchange helped it climb back above $0.40. A fall since then has seen it return to around $0.23.

How to buy Dogecoin: You can buy Dogecoin on Robinhood and many of the major crypto exchange like Binance and Kraken, but it's not available on Coinbase.

8. USD Coin (USDC)

Top cryptocurrency — USD Coin

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USD Coin market cap: $25.7 billion

USD Coin value: $1

The USD Coin story: Like Tether, USD Coin is a so-called stable coin that's linked to the U.S. dollar. That makes it far less subject to price fluctuations than many other cryptocurrencies — and indeed, USD Coin has been relatively unaffected by the recent turmoil in the market. USD is also big on transparency, assuring investors that they will be able to withdraw 1 USDC and receive $1 in return.

USD Coin performance history: USDC is worth $1

How to buy USD Coin: Buy USD Coin on major crypto exchanges such as Coinbase and Binance.

9. Polkadot (DOT)

Top cryptocurrency listed — Polkadot

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Polkadot market cap: $15.9 billion

Polkadot value: $16.68

The Polkadot story: Lots of the top cryptocurrency projects have lofty goals, but Polkadot’s is one of the loftiest: to “enable a completely decentralized web where users are in control.” Launched in 2020, Polkadot is the flagship project of the Swiss Web3 foundation. If Web 1.0 was commerce, and Web 2.0 was social, think of Web3 as decentralization. Polkadot’s technology stitches together different blockchains, enabling them to exchange information and transactions and operate together seamlessly.

Polkadot performance history: This crypto was trading at about a nickel until late 2020, when it took off (stop us if you’ve heard this one before) and was recently trading at around $41. However a big fall recently has seen it drop back to around $16.50.

How to buy Polkadot: Buy Polkadot on major crypto exchanges such as Coinbase, Binance and Kraken.

10. Uniswap (UNI)

Top cryptocurrency listed — Uniswap

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Uniswap market cap: $13.3 billion

Uniswap value: $22.78

The Uniswap story: Most cryptocurrency trading takes place on centralized exchanges such as Coinbase, Binance, and Kraken. Uniswap, launched in 2018, is a decentralized crytpo exchange that runs on the Ethereum platform — transaction fees must be paid for in ETH. 

The Uniswap app can swap all different types of tokens but does not connect to the traditional financial network, meaning you can’t convert to USD or Euro or other fiat currencies. (Though you can convert to some stablecoins — see Tether above.) Uniswap also has its own “governance token”: if you own this token, you have a right to vote on the direction of the project’s development. Uniswap recently passed Coinbase in trading volume, and many crypto followers think it could be the future of all exchanges.

Uniswap performance history: Launched in 2018, Uniswap hit a high of $42 in late April 2021. It is currently trading under $23.

How to buy Uniswap: Buy Uniswap on major crypto exchanges such as Coinbase, Binance and Kraken.


Jonathan Lesser is a writer and editor covering cryptocurrency and personal finance. He has worked for two Fortune 100 financial services companies and has been published in Men’s Health, Men’s Journal, Vibe, Travel + Leisure Golf and other publications. View all articles by Jonathan here.

Jonathan Lesser

Jonathan Lesser is a writer, editor and communications professional living in Pelham, N.Y. Jonathan writes about personal finance and cryptocurrencies for Tom's Guide. He has worked at two Fortune 100 financial services companies and has been published in Men’s Health, Men’s Journal, Vibe, Travel + Leisure Golf and other publications.