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Tuesday May 26 2026 08:50
18 min
Cryptocurrencies have become one of the most talked-about financial markets in the world, attracting traders, investors, technology enthusiasts and institutions. Unlike traditional currencies issued by central banks, cryptocurrencies are digital assets that use cryptography and blockchain technology to record transactions, verify ownership and operate without a single central authority.
This guide explains what cryptocurrencies are, how blockchain works, why crypto prices move, and what traders should consider before entering the digital asset market.
Cryptocurrencies are digital assets secured by cryptography and usually operate on decentralised blockchain networks.
Blockchain technology acts as a shared public ledger that records transactions transparently and helps prevent double-spending.
Bitcoin, Ethereum, altcoins, stablecoins and crypto tokens all play different roles in the digital asset market.
Cryptocurrency prices can be highly volatile because they are influenced by supply, demand, regulation, market sentiment and technology updates.
Traders can gain crypto exposure through direct ownership or derivatives such as crypto CFDs, depending on their goals and risk appetite.
Crypto trading involves significant risk, especially when leverage, 24/7 market activity and sudden price swings are involved.
Cryptocurrencies are digital or virtual assets that use cryptography to secure transactions and verify ownership. They do not exist as physical coins or banknotes. Instead, they are recorded on digital networks, usually blockchains, where transaction history can be checked by network participants.
The simplest way to understand cryptocurrency is to think of it as a digital asset that can be transferred between users without relying on a traditional bank. Instead of a central institution confirming every payment, a distributed network of computers checks and records transactions.
This is why decentralisation is one of the most important features of many cryptocurrencies. In a traditional financial system, banks, payment processors or governments act as central authorities. In a cryptocurrency network, the system is often maintained by many independent participants.
However, this does not mean all cryptocurrencies are the same. Some are designed as stores of value, some power blockchain applications, some aim to support payments, and others are mainly speculative assets with limited practical use.
For traders, cryptocurrencies are important because they have become a separate asset class with their own price behaviour. Crypto markets can move sharply in response to news, liquidity changes, investor sentiment, regulation, exchange activity and broader risk appetite.
Cryptocurrencies work by recording transactions on a digital ledger that is shared across a network. In most cases, this ledger is called a blockchain. Every transaction is grouped with others, verified by the network and added to the chain of previous records.
When someone sends cryptocurrency, the network checks whether the sender has enough balance and whether the transaction follows the network rules. Once confirmed, the transaction becomes part of the blockchain record.
This process helps solve a key digital money problem: double-spending. In simple terms, double-spending means trying to use the same digital asset more than once. Blockchain networks are designed to make this extremely difficult by keeping a shared and verifiable record of ownership.
Cryptography is also central to how cryptocurrencies work. Users typically control their crypto through private keys, which act like a secure digital signature. If you own the private key to a wallet, you can authorise transactions from that wallet. If you lose the private key, you may lose access to the assets stored there.
There are several parts of a typical cryptocurrency network:
This structure allows cryptocurrency networks to operate continuously. Unlike many traditional markets, major cryptocurrencies can be traded around the clock, including weekends. For traders, this creates both opportunity and risk because market-moving events can happen outside normal trading hours.
Blockchain is the technology that supports many cryptocurrencies by recording transactions in linked blocks of data. Each block contains transaction information and is connected to the previous block, creating a chronological record that is difficult to alter.
A useful way to think about blockchain is as a shared public database. Instead of one company or bank controlling the record, copies of the ledger are maintained by many participants across the network. This makes the system more transparent and reduces reliance on a single point of control.
Blockchain technology is important because it can provide:
Bitcoin uses blockchain mainly to record transfers of BTC. Ethereum goes further by supporting smart contracts, which are pieces of code that can automatically execute actions when certain conditions are met. This has allowed developers to build decentralised applications, tokens and financial protocols on top of Ethereum and similar networks.
That said, blockchain is not automatically risk-free. Networks can face congestion, high transaction fees, technical bugs, security vulnerabilities or governance disputes. Some projects may also promise more than they can realistically deliver.
For traders, the key point is simple: blockchain technology may explain why a crypto asset exists, but it does not guarantee that the asset will rise in value. Price still depends on market demand, liquidity, sentiment and risk appetite.
Mining and staking are different ways cryptocurrency networks verify transactions and maintain security. They are part of what is known as a consensus mechanism, which is the process a network uses to agree on the valid state of the blockchain.
Mining is most closely associated with Bitcoin and proof-of-work networks. Miners use specialised computing power to solve complex mathematical problems. When a miner successfully validates a block, the block is added to the blockchain and the miner may receive newly created cryptocurrency as a reward.
Mining helps secure the network, but it can require large amounts of electricity and expensive hardware. This is why proof-of-work networks are often discussed in relation to energy use and mining costs.
Staking is commonly used in proof-of-stake networks. Instead of using energy-intensive computing power, validators lock up a certain amount of cryptocurrency to help secure the network. Validators may earn rewards for helping confirm transactions, but they can also face penalties if they act dishonestly or fail to follow network rules.
Proof-of-stake is generally considered more energy-efficient than proof-of-work. However, it also has its own risks, including validator concentration, protocol changes and staking lock-up periods.
Consensus mechanisms matter because they affect how a network operates, how new coins are created and how secure the system may be. They can also influence market perception.
For example, a major network upgrade, change in staking rewards or mining-related events can affect trader sentiment. Bitcoin halving events, for instance, reduce the rate at which new BTC enters circulation and are closely watched by crypto market participants.
The cryptocurrency market includes many different types of digital assets. Understanding the main categories can help traders separate established networks from more speculative projects.
Bitcoin is the first and most widely recognised cryptocurrency. It was launched in 2009 and is often described as digital gold because it has a fixed maximum supply of 21 million coins.
Many traders view Bitcoin as the benchmark for the broader crypto market. When Bitcoin rises or falls sharply, other cryptocurrencies often react as well. This does not mean all crypto assets move exactly the same way, but Bitcoin frequently influences overall market sentiment.
Bitcoin is mainly used as a store-of-value asset and a speculative trading instrument. It does not support the same level of programmability as some newer blockchain networks, but its brand recognition, liquidity and supply structure make it central to the crypto market.
Ethereum is a blockchain network best known for smart contracts. Its native cryptocurrency is Ether, often referred to as ETH.
Unlike Bitcoin, Ethereum is not only designed to transfer value. It also supports decentralised applications, tokens and blockchain-based services. This has made Ethereum a key part of the wider crypto ecosystem.
For traders, Ethereum may respond to different drivers from Bitcoin. Network upgrades, transaction fees, developer activity and decentralised finance trends can all influence ETH price movements.
Altcoins are cryptocurrencies other than Bitcoin. Some altcoins are designed to improve transaction speed, reduce fees, support smart contracts, provide privacy features or serve specific blockchain applications.
Examples of altcoin categories include:
Altcoins can offer strong price movement, but they often carry higher risk. Many have lower liquidity than Bitcoin or Ethereum, making them more sensitive to sudden buying or selling pressure.
Stablecoins are cryptocurrencies designed to track the value of another asset, usually a fiat currency such as the US dollar. They are often used by crypto traders to move value between exchanges or reduce exposure to price volatility without leaving the digital asset ecosystem.
However, stablecoins are not risk-free. Their reliability depends on reserve management, issuer transparency, regulation and market confidence.
Crypto tokens are digital assets built on existing blockchain networks. For example, many tokens are created on Ethereum or similar smart contract platforms. Tokens may represent governance rights, platform access, utility within an application or speculative exposure to a project.
When evaluating any token, traders should consider its purpose, liquidity, supply structure, market demand and whether the project has a clear use case.
Cryptocurrency prices move because of supply, demand, sentiment, liquidity and market expectations. Unlike traditional currencies, crypto assets are not usually driven by central bank interest rate decisions in a direct way, although broader monetary policy can still affect risk appetite.
Several factors can influence crypto price movements.
Some cryptocurrencies have fixed or limited supply rules. Bitcoin, for example, has a maximum supply of 21 million coins. If demand rises while supply is limited, this can support bullish sentiment. However, scarcity alone does not guarantee higher prices.
Other cryptocurrencies have different supply models. Some issue new tokens over time, some burn tokens, and some adjust supply through protocol rules. Traders should understand the supply structure before assuming that a crypto asset is scarce.
Crypto markets are heavily influenced by sentiment. Positive news, institutional interest, exchange listings or network upgrades can drive demand. Negative news, security breaches, regulatory concerns or liquidity problems can trigger sharp selling.
Because crypto markets trade 24/7, sentiment can change quickly. A price move that begins during the weekend can continue before traditional markets reopen.
Regulatory news is one of the biggest drivers of crypto volatility. Announcements from financial regulators, tax authorities, courts or governments can affect how traders view the future of digital assets.
For example, stricter rules may reduce risk appetite in the short term, while clearer regulation may sometimes improve market confidence. The impact depends on the details of the announcement and how the market interprets it.
Blockchain upgrades, security improvements and changes in network design can affect cryptocurrency prices. A successful upgrade may increase confidence in a project, while technical problems can create uncertainty.
Liquidity refers to how easily an asset can be bought or sold without causing a large price move. Major cryptocurrencies such as Bitcoin and Ethereum are generally more liquid than smaller tokens, but liquidity can still change during periods of stress.
Low-liquidity crypto assets can move sharply because even modest orders may affect the market price. This is especially important for traders using leverage, as sudden moves can trigger stop-loss orders or margin calls.
Traders can gain exposure to cryptocurrencies either by owning the asset directly or by trading derivatives such as crypto CFDs. The right approach depends on whether you want ownership, short-term price exposure, flexibility or simplified market access.
Direct ownership means buying the actual cryptocurrency through an exchange and storing it in a wallet. This may appeal to people who want to hold crypto for the long term or use it within blockchain applications.
The main advantage is that you own the underlying asset. You can transfer it, store it or use it where supported. The main challenge is security. You may need to manage private keys, wallet backups, exchange risks and withdrawal processes.
For example, if you buy Bitcoin directly, you are responsible for deciding where and how to store it. If you keep it on an exchange, you face exchange-related risk. If you move it to a private wallet, you must protect your recovery phrase and private key.
Crypto CFD trading allows you to speculate on cryptocurrency price movements without owning the underlying coin. A Contract for Difference tracks the price movement of an asset, allowing traders to go long if they expect prices to rise or short if they expect prices to fall.
This can be useful for active traders who want exposure to price movement without managing wallets or private keys. However, CFDs are leveraged products, which means both profits and losses can be magnified.
For example, if a trader believes Bitcoin may fall after a strong rally, a crypto CFD could allow them to take a short position. If the price falls, the trade may benefit. If the price rises instead, losses can build quickly, especially when leverage is used.
Beginner traders should approach cryptocurrency trading with a clear plan, realistic expectations and strong risk awareness. Crypto markets can look exciting, but fast price movement can punish emotional decisions.
Start by learning how the asset works. Before trading a cryptocurrency, understand what it is used for, how liquid it is, what drives demand and whether it has a clear market role.
Next, decide your exposure method. Do you want to own the cryptocurrency directly, or do you only want to speculate on its price movement through a CFD? This choice affects your costs, risks and responsibilities.
You should also define your trading timeframe. A short-term trader may focus on technical levels, volatility and market news. A longer-term participant may care more about adoption, network development and macro conditions.
A simple beginner checklist may include:
Review costs, including spreads and overnight funding where relevant
The most important point is not to trade crypto simply because it is popular. You should understand the product, the market and the risks before opening a position.
Cryptocurrencies are digital assets that use cryptography and blockchain technology to record transactions, verify ownership and support decentralised networks. For traders, they offer exposure to a fast-moving market driven by supply, demand, sentiment, regulation, liquidity and technology updates. However, cryptocurrencies are also highly volatile, and products such as crypto CFDs can magnify both gains and losses through leverage. Understanding what cryptocurrencies are, how they work and how different types of crypto exposure compare can help you approach the market with more confidence and better risk awareness.
What are cryptocurrencies in simple terms?
Cryptocurrencies are digital assets that use cryptography and blockchain technology to record transactions and verify ownership. They are not physical money and are usually not issued by a central bank. Many traders use them for price speculation, while some users hold them for payments or blockchain applications.
Are cryptocurrencies legal tender?
In most countries, cryptocurrencies are not considered legal tender, meaning businesses are not generally required to accept them as payment. However, rules vary by jurisdiction, and some countries have adopted or recognised certain crypto assets in specific ways. Traders should always check local regulations.
What is the difference between cryptocurrency and blockchain?
Cryptocurrency is the digital asset, while blockchain is the technology that records and verifies transactions. For example, Bitcoin is a cryptocurrency, and the Bitcoin blockchain is the network ledger that tracks Bitcoin transactions.
Can you trade cryptocurrency without owning it?
Yes. Traders can use products such as crypto CFDs to speculate on cryptocurrency price movements without owning the underlying asset. This can remove the need for a crypto wallet, but CFDs involve leverage and margin risk, so losses can exceed expectations if markets move sharply.
Why are cryptocurrency prices so volatile?
Cryptocurrency prices are volatile because they are driven by changing supply and demand, investor sentiment, regulation, technology updates, liquidity and broader risk appetite. The market also trades 24/7, which means prices can move sharply outside traditional market hours.
Is crypto trading suitable for beginners?
Crypto trading can be difficult for beginners because prices move quickly and risks can be high. New traders should start by learning how the market works, comparing direct ownership with CFDs, understanding leverage risk and using a clear trading plan before committing capital.
Risk Warning: This article is provided for informational purposes only and does not constitute investment advice, investment research, or a recommendation to trade. The views expressed are those of the author and do not necessarily reflect the position of Markets.com. When considering shares, indices, forex (foreign exchange), and commodities for trading and price predictions, remember that trading CFDs involves a significant degree of risk and may not be suitable for all investors. Leveraged products can result in capital loss. Past performance is not indicative of future results. Before trading, ensure you fully understand the risks involved and consider your investment objectives and level of experience. Cryptocurrency CFD trading restrictions may apply depending on jurisdiction.
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