Crypto markets, plainly explained

A crypto asset is a record in a distributed ledger that nobody administers centrally, and that one fact explains almost everything unusual about the market — including why it is volatile, why fraud is common, and why the ordinary protections you would have with a bank do not apply.

This page is about how the market works, not about whether to participate. The structural points below are the ones that decide whether you lose money for reasons within your control.

Quick answer

Ownership means controlling a private key, not having an account at an exchange. Assets held on an exchange are a claim on that exchange, and if it fails you are a creditor rather than an owner. Volatility is high because the market is small relative to the flows that move through it, and there is no central bank acting as a backstop.

What is genuinely different from other markets

• No central administrator. Transactions settle on a ledger rather than through an institution, so there is nobody to reverse a mistaken payment or freeze a stolen balance.
• Custody is yours. Control of a key equals control of the asset. There is no password reset. This is the source of both the appeal and the largest category of loss.
• Markets run continuously. There is no close and no circuit breaker in most venues, so a price move can happen at any hour and a stop is not guaranteed.
• Regulation differs sharply by jurisdiction. What is a regulated security in one country can be an unregulated commodity in another, and the protections available to you depend on where you are and where the venue is.

Why the price moves so much

Volatility is what a small market with large flows looks like. Where the total market is modest relative to the size of individual participants, a single large order moves the price a long way, and the move is amplified by positions that must be closed when the price goes against them.

There is also no institution whose stated role is to stabilise the price, which is a function central banks perform in currency markets. Absent that, moves run further than they would elsewhere, and the leverage available in the market makes the running faster.

The frauds that are specific to this market

Impersonation. Someone presenting as support, as an exchange, or as a person you know, asking for a transfer or a key. No legitimate party ever needs your private key or your recovery phrase, and that sentence resolves most of these.

Romance and investment approaches. A relationship built over weeks, then a demonstration of a profitable platform that turns out to be fictional. The tell is that withdrawing requires paying something first.

Tokens promoted by people who already hold them. Attention is manufactured, the early holders sell into it, and the people who bought on the recommendation are the exit.

The wider pattern of these is in avoiding scams and fraud, and it is worth reading before the crypto-specific version, because the structure is the same.

Before you put anything in

1. Establish where the venue is regulated and by which authority, and what recourse you would have.
2. Decide how much you would hold on an exchange at all, given that it is a claim rather than ownership.
3. Understand that the money must be money you can lose entirely, since total loss is a normal outcome rather than an edge case.
4. Read the tax position in your own jurisdiction, because it is decided there and it is rarely what people assume.

What a chart of this market looks like and what can be read from it is in how to read a price chart. If a position would be funded by borrowed money, read debt problems and what to do first.

What a wallet actually is

The word suggests storage, and it is misleading. A wallet holds keys, and the keys authorise transactions on the ledger. The asset is on the ledger at all times; what you control is the ability to move it.

This is why losing a key is losing the asset, and why theft does not require anyone to take anything — it requires them to obtain the key. There is no institution to notify and no reversal to request, which is the structural difference from a bank account.

The intermediaries, and what they are for

Exchanges and custodial services exist because holding keys yourself is unforgiving. They solve a real problem and they introduce a different one: you hold a claim rather than an asset, and the claim depends on the intermediary being solvent and honest.

The workable position is to know which of the two you are relying on at any moment, and to size the exposure accordingly. Most people who have lost substantially have lost through the intermediary rather than the asset.

Tax and record-keeping

Tax treatment is decided by the jurisdiction where you are resident, and it varies enough between them that assumptions are unreliable. What is common is that records are required, and that reconstructing them later is difficult.

The practical habit is to keep a dated record of every acquisition and disposal from the beginning, including fees. Whatever the rules turn out to be, an accurate record is the thing that makes compliance possible and the thing whose absence is expensive.