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Altcoin.

Any cryptocurrency other than bitcoin, ranging from large established networks to tokens someone created in an afternoon.

In plain English

Altcoin is a catch-all for every crypto asset that is not bitcoin, which makes it a category with almost no shared meaning. Some altcoins are major networks with thousands of developers and years of operating history. Others are tokens minted in minutes with a copied website, a paid promoter, and no working product. Creating a token on an existing blockchain costs very little, so supply of new ones is effectively unlimited, and most lose nearly all their value. Because the label groups all of it together, it does more to hide differences than to explain them.

Most useful ages
18 to 55

01Why it matters

Being told something is a promising altcoin conveys no information, so the specific questions about who runs it, what it does, and who holds the supply are the only ones that matter.

02The math, step by step

Say a token launches with 1,000,000,000 units and insiders hold 400,000,000, or 40 percent. At a quoted price of $0.01 the whole project is valued at $10,000,000, but only the small floating portion actually trades. Insiders selling even 5 percent of their holding is 20,000,000 units hitting a thin market.

Illustrative example. The amounts here are hypothetical, chosen to show how the math works, not real quoted rates or figures.

03What this is NOT

Do not confuse with A stock in a small company

A small-cap stock is a legal ownership claim on a business with audited financials and reporting duties. Most altcoins convey no ownership, no revenue claim, and no required disclosure. The comparison flatters the token.

04Receipts

Every figure on this page is sourced to a primary document. Tap to open the original.

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The Decoderby ClearMoneySchool

Plain-English answers from our glossary. Receipts included. Never advice.

Educational tool. Answers come only from ClearMoneySchool's published glossary and are not advice. Why we never give advice

Last updated August 23, 2026 · Drafted with AI assistance, not yet reviewed by a person