What Is an Altcoin? Bitcoin, Ethereum and Everything Else
“Altcoin” simply means any cryptocurrency that isn’t Bitcoin — short for “alternative coin.” There are thousands of them, from established networks like Ethereum worth hundreds of billions of dollars down to tiny tokens created last week. Understanding the categories helps you tell a serious project from a gamble.
The main types of altcoin
Smart-contract platforms like Ethereum, Solana and Cardano are networks other apps are built on — their coins pay for using the network. Stablecoins such as USDC and USDT are pegged to the US dollar and used to move value without volatility. Utility and governance tokens give holders access to, or a vote in, a particular platform. And then there are meme coins like Dogecoin — coins driven largely by community and hype rather than a clear use, and among the most speculative things in crypto.
Why altcoins are riskier than Bitcoin
Bitcoin has the longest track record, the deepest liquidity and the widest recognition. Most altcoins have none of that. They tend to be more volatile, can be far harder to sell in a hurry, and many simply fail — the majority of coins launched over the years are now worthless. The smaller and newer a coin, the more it can swing on a single tweet or a thin market. Altcoins can outperform Bitcoin in a rally, but they usually fall harder when sentiment turns.
“Alt season” and Bitcoin dominance
Traders watch Bitcoin dominance — Bitcoin’s share of the total crypto market. When dominance falls, money is often flowing into altcoins, a period some call “alt season.” It’s a mood indicator, not a signal to buy blindly; plenty of altcoins never recover their highs.
How to research an altcoin before buying
Before putting money in, ask: what does this coin actually do, and who’s using it? Read the project’s documentation, check whether the team is public and credible, look at how widely it trades, and be wary of anything promising guaranteed or outsized returns — that’s a classic scam hallmark. Extreme caution is warranted with brand-new tokens and anything you first heard about through a DM or social-media hype.
Buying altcoins in Australia
Bigger altcoins are listed on most Australian exchanges; niche ones may only be found on larger global platforms. If a wide coin selection matters to you, our Trust Score ranking shows which exchanges list the most, and the finder can match you to one. Whatever you buy, mind the fees and remember every trade is a taxable event.
This is general information only, not financial advice. Altcoins are especially volatile and high-risk — never invest more than you can afford to lose.
General information only — not financial or tax advice. Verified 2026-08-13; details can change.