Crypto Fundamentals
What Are Altcoins?
Coins, exchanges, and wallets — the practical building blocks.
In this lesson
- What altcoins are and why they exist
- How their risk compares to Bitcoin
Key takeaways
- 1An altcoin is any crypto other than Bitcoin
- 2They explore different trade-offs and use cases
- 3They usually carry higher risk and volatility
Lesson summary
Altcoins are crypto assets other than Bitcoin.
Mental model
The core idea behind altcoins
Altcoins are crypto assets other than Bitcoin. Some experiment with useful designs; many are thin liquidity, weak incentives, or short-lived speculation.
- What altcoins are and why they exist
- How their risk compares to Bitcoin
Mechanics
How to reason about altcoins
Altcoins can represent Layer-1 networks, DeFi protocols, stablecoin systems, governance rights, or memes.
They usually have different supply schedules, insiders, unlocks, and liquidity profiles.
Risk rises when the token has little usage beyond trading attention.
- An altcoin is any crypto other than Bitcoin
- They explore different trade-offs and use cases
- They usually carry higher risk and volatility
Example
Altcoins in a real decision
A Layer-1 token may pay gas for a network, while a governance token may vote on protocol parameters. Both are altcoins, but their risk drivers are different.
Common mistakes
How altcoins trips learners up
The biggest beginner error is treating every low-priced token as cheap. Unit price says little without supply, market cap, liquidity, and unlocks.
Risk notes
Staying safe around altcoins
Altcoins can lose value quickly through team sales, emissions, exploits, delistings, or fading narratives.
- Identify the token's job.
- Check supply and unlocks.
- Look at liquidity before sizing a trade.
Practice
A short drill for altcoins
- Identify the token's job.
- Check supply and unlocks.
- Look at liquidity before sizing a trade.
Review
Key terms
- Altcoin
- Any cryptocurrency other than Bitcoin. Often higher risk and higher volatility.
- Bitcoin (BTC)
- The first cryptocurrency, launched in 2009 — a decentralized, hard-capped (21M) digital money.
- DeFi
- Decentralized Finance — permissionless, composable financial services built on smart contracts.
- Layer 1
- A base blockchain (e.g. Bitcoin, Ethereum, Solana) that settles its own transactions.
- Liquidity
- How easily an asset can be bought or sold without moving its price much.
Source notes
Editorial references
These references are starting points for verifying the mechanisms, risk checks, and product context behind this lesson.
Before you continue
Can you do these?
- Identify the token's job.
- Check supply and unlocks.
- Look at liquidity before sizing a trade.
Related learning
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Checkpoint
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Answer every question correctly to complete the lesson.
An 'altcoin' is…