Layer 1s are the foundations of crypto. Everything else — DeFi protocols, NFTs, meme coins, Layer 2 rollups, even stablecoins — is eventually a record on one of the chains grouped under this sector.
The cumulative market cap of L1 tokens you can see above is the single biggest line item in crypto by a wide margin. Bitcoin alone typically accounts for more than half of the entire crypto market cap on its own, and when you add Ethereum, Solana, BNB, Tron and the rest of the top L1 basket, the top of this sector represents roughly three-quarters of all capital in crypto.
The Chains That Matter
A rough mental model of the L1 landscape:
- Bitcoin (BTC) — the original, purpose-built for one thing: secure, censorship-resistant digital money. No smart contracts in the Ethereum sense, but a growing ecosystem of inscriptions, Runes and L2s like Stacks and BOB. See our dedicated Bitcoin guide.
- Ethereum (ETH) — the programmable settlement layer. Hosts the majority of DeFi activity, most stablecoin issuance, and the largest L2 ecosystem. See what is Ethereum.
- Solana (SOL) — high throughput, single global state, no L2s. Dominant in memecoin launches, Jupiter/Jito-driven DeFi, and consumer apps.
- BNB Chain (BNB) — CEX-linked L1, enormous daily transaction count, meme-heavy retail activity.
- Tron (TRX) — primarily a stablecoin rail. USDT on Tron is the single most-transacted token in crypto by count.
- Avalanche (AVAX), Sui (SUI), Aptos (APT), Cardano (ADA), Polkadot (DOT), Near (NEAR) — alternative smart contract platforms, each with its own thesis and developer base.
- The long tail — Algorand, Cosmos hub, Injective, Sei, Kaspa, Fantom/Sonic, Ton, Hedera, and several dozen more. Worth watching, but be honest about the thinner liquidity.
CoinGecko’s Layer 1 category also overlaps with smart contract platforms. If a chain supports full dapp development it tends to appear in both.
Reading the Table
L1s typically move together but with a lag. Bitcoin leads, Ethereum follows, then the rest of the basket catches up. Watching the 24h column on the table above during a trending week makes that rotation visible — BTC will be up 2% while SOL is up 8%, or ETH will be up 4% while the rest of the L1 basket is flat.
In bear markets the same rotation plays out in reverse: the altcoin L1s sell off harder than BTC and ETH, and rally back last when the trend reverses.
For Long-Term Holders
L1 tokens are the lowest-volatility way to get crypto exposure, for two reasons. First, they are widely held — deep order books absorb big moves more gracefully than small-cap alts. Second, they represent the underlying chains rather than any one application on top, so a single protocol failure rarely craters the L1 itself.
None of this is investment advice. For portfolio construction ideas across L1s and the rest of the sectors, see the diversification guide and the compare tool for side-by-side metrics on any two to five L1s you are looking at.