On-Chain Analysis — Reading the Blockchain
Unlike traditional markets, every Bitcoin and Ethereum transaction is public and permanent. On-chain analysis reads this data to understand who is holding, buying, selling — and crucially, at what prices. It's like seeing the order book of the entire market, historically.
What Makes Crypto Different from TradFi
In traditional finance, you can see price, volume, and some positioning data (COT reports, options flow). You cannot see where every institutional wallet bought, how long they've held, or when they're likely to sell.
In crypto, every transaction is recorded on a public ledger. With the right tools, you can see: which wallets have been accumulating for 3+ years; which exchange addresses received large deposits (sell pressure incoming); whether long-term holders are distributing or still holding. This is an information edge that doesn't exist anywhere else in finance.
The UTXO Model — How Bitcoin Tracks Ownership
Bitcoin uses an Unspent Transaction Output (UTXO) model. Rather than account balances like a bank, Bitcoin tracks individual "coins" — outputs from previous transactions that haven't been spent yet. When you receive 0.5 BTC, you receive a UTXO of 0.5 BTC. When you spend it, that UTXO is consumed and new UTXOs are created as outputs.
This matters for analysis because: each UTXO has a creation date (when it was received), so we can calculate the age of coins. We can identify realised price — what price Bitcoin was at when each UTXO was last moved. This lets us calculate aggregate metrics like the average cost basis of all BTC currently held.
Three Layers of On-Chain Analysis
On-chain data can be analysed at three levels of depth:
Key Metrics Every Trader Should Know
You don't need to understand every on-chain metric — a handful of them cover most of the actionable signals:
- Realised Price — the aggregate cost basis of all BTC. When price is below realised price, holders are "underwater" on average. Historically, buying near realised price has been a high-conviction accumulation zone.
- SOPR (Spent Output Profit Ratio) — the ratio of the dollar value of outputs at spend time vs. their value at creation. Above 1.0 means the average coin being spent is being sold at a profit. Below 1.0 means at a loss (capitulation signal).
- MVRV (Market Value to Realised Value) — the market cap divided by realised cap. High MVRV = coins worth much more than their cost basis = distribution risk. Low MVRV = coins near or below cost basis = accumulation opportunity.
- LTH/STH Supply — Long-Term Holder (held 155+ days) vs. Short-Term Holder supply. LTHs distributing in an uptrend signals market top formation.
On-Chain Tools
Key Takeaways
- On-chain analysis is unique to crypto — no equivalent transparency exists in traditional financial markets
- The UTXO model lets analysts track coin age, cost basis, and realised prices for every BTC ever moved
- The three layers: raw data → derived metrics → trading signals. Focus on Layer 3 signals, understand their Layer 2 source
- Four metrics cover most macro signals: Realised Price, SOPR, MVRV, and LTH/STH supply
- Glassnode and CryptoQuant cover Bitcoin deeply; Nansen/Arkham cover Ethereum and DeFi
- Free tiers are sufficient to start — use them consistently before paying for more data