Shares, bonds and crypto: what's the difference?

Shares: you own part of a company

When you buy SharesSharesA stake in a company. Shareholders are entitled to a share of profits and a vote at shareholder meetings, but can lose everything if the company fails., you own a small piece of a company. If the company has issued 10 million shares and you own 1,000 of them, you own 0.01% of it. Shareholders are entitled to a share of the profits and can vote at shareholder meetings.

The returns come in two ways:

• Dividends. A profitable company can pay part of its profit to shareholders, usually once a year.
• Price rises. If the company does well and investors expect bigger profits in future, the share price goes up.

The risk is that the company does badly. Then the price falls, and if it goes bankrupt the shares can become worthless, because lenders are paid before shareholders. Icelanders know this well. In the banking collapse of autumn 2008, shares in Kaupþing, Landsbankinn and Glitnir became worthless, and the three banks were then the largest companies on the Icelandic stock exchange.

In Iceland, shares in listed companies are traded on the Icelandic stock exchange, now called Nasdaq Iceland. At the start of November 2026, shares in 27 companies were listed on its Main Market, and the main share index, OMXI15, tracks the prices of 15 companies.

Bonds: you lend money

A bondBondsA loan from the buyer to the issuer, such as a government or company, which promises to pay interest and repay the principal at maturity. is a loan. When you buy a bond, you lend money to the issuer, for example the government, a municipality or a company. In return, the issuer promises to pay you InterestInterestThe price a borrower pays to borrow money, and what a saver earns for lending it. Usually given as a percentage per year. and repay the principal on the maturity date.

The Icelandic government issues government bonds (ríkisbréf), both nominal and index-linkedIndexationWhen the principal of a loan or deposit follows the consumer price index. Indexation protects savings from inflation but makes debts rise with prices.. Lánamál ríkisins, a unit within the Central Bank, handles the issuance on behalf of the Ministry of Finance and Economic Affairs. The principal of index-linked bonds follows the consumer price index, so it rises with inflation.

Bonds usually swing less than shares, but they aren't risk-free:

• The issuer can default. If a company goes bankrupt, you may get back less, or nothing. Government bonds are seen as safer than corporate bonds.
• Interest rates can rise. If market rates go up, older bonds paying lower interest fall in price, because nobody wants to pay full price for worse terms.
• Inflation. Bonds with a fixed rate that aren't index-linked lose real value if inflation turns out higher than expected.

Crypto: a digital asset with no issuer

BitcoinBitcoinThe first and largest cryptocurrency: a digital currency that no single party controls, with a fixed limit of 21 million coins. is neither a stake in a company nor a loan. Nobody issues it, nobody promises to pay anything on it, and it pays neither dividends nor interest. Its value is set by supply and demand. The supply is fixed at a maximum of 21 million, and the demand comes from people wanting to own an asset that nobody can print more of, freeze or control.

Many people compare bitcoin to gold rather than to shares. Gold pays no dividends either, but it has been used as a store of valueStore of valueAn asset that keeps its purchasing power over a long time, so it can be saved now and used later, as gold has done for centuries. for thousands of years. The arguments for bitcoin's value are set out in Why does Bitcoin have value?

Other cryptocurrencies vary a lot. Stablecoins are meant to hold a fixed price against a currency such as the dollar. Some tokens give voting rights in a project or a share of its revenue, which makes them a little like shares. Even so, a token usually isn't ownership of a company and doesn't come with the same legal rights.

The main risk is VolatilityVolatilityHow much and how quickly the price of an asset moves up and down.. The price of bitcoin fell more than 75% from November 2021 to November 2022, and most other cryptocurrencies fell further. Many smaller cryptocurrencies have also become worthless.

Side by side

Risk and return go together

ReturnReturnWhat an asset earns its owner, in interest, dividends or price rises. Usually given as a percentage of the amount originally invested. is what an asset earns you, in dividends, interest or price rises. The general rule in finance is that a higher expected return comes with higher risk. Government bonds usually return a modest amount with small swings. Shares have returned more over the long run, but with large falls along the way. Bitcoin has risen more than most other assets since 2009, but its falls have also been much deeper.

Past returns say nothing about the future, though. What matters most is whether you can hold on when prices fall, without having to sell at the worst moment. That is your risk toleranceRisk toleranceHow much risk and how many price swings you can bear, financially and emotionally, without it upsetting your life or your decisions..

A portfolio: more than one basket

Few people own just one kind of asset. Everything you own, such as bank deposits, shares, bonds, pension rights and crypto, together makes up your PortfolioPortfolioAll the investments and assets of a person or fund, seen as a whole. Its mix determines both risk and return.. Spreading savings across more than one asset class lowers the risk that a single shock hurts everything. That is called DiversificationDiversificationSpreading your money across different assets so that a fall in one of them has less effect on the whole..

Diversification works best when assets don't all move together. Bitcoin's price has sometimes moved with technology shares and sometimes gone its own way, so the relationship changes over time.

How much goes into each class depends on a person's goals, time horizon and risk tolerance, and there is no single right mix. Many people put only a small part of their savings into crypto, an amount they can afford to lose. Read about the risks before you decide.

Where the lines blur

The lines between the asset classes aren't always sharp. Bitcoin exchange-traded funds are listed on exchanges in the United States and elsewhere, letting people own bitcoin through an ordinary brokerage account. In the other direction, shares, government bonds and funds are starting to appear as tokens on blockchains. This is called Tokenisation (RWA)Tokenisation (RWA)When an asset outside the blockchain, such as a government bond, gold or property, is issued as a token that can be held and sent on a blockchain., and you can read about it in What is tokenisation?

The classification matters legally. Shares and bonds are financial instruments and fall under securities law. Most cryptocurrencies are crypto-assets and fall under MiCA, the EU's rules on markets in crypto-assets, which also apply in Iceland.

Closing thoughts

Shares, bonds and crypto are different kinds of assets. Shares give you a stake in a company's business, bonds give you a claim to interest and repayment, and bitcoin is a digital asset with a fixed supply that nobody controls. Each class has its own strengths and its own risks, and each can have its place in a portfolio.

If you are thinking about adding crypto to your savings, it helps to know what it is and what it isn't. Start with What is cryptocurrency?, and read about the risks before you buy.