Two ways to add up a network
The usual way to value a cryptocurrency is market capitalization: take the current price and multiply it by the number of coins. Every coin is treated as if it were worth today’s price, whether it last changed hands yesterday or a decade ago.
Realized cap takes a different approach. It values each coin at the price on the day it last moved on the blockchain, then sums the results. The idea comes from a feature of Bitcoin’s design: every unspent output has a creation date, so an analyst can look up what the market price was when it was created and use that as a stand-in for the price at which the coin was last acquired.
The calculation
For a UTXO-based network, the steps are:
- List every unspent output and its amount.
- For each, find the market price on the day it was created, meaning the day it last moved.
- Multiply amount by that price.
- Add up all the results. That sum is the realized cap.
Realized price is the realized cap divided by the number of coins in circulation. It can be read as the average last-moved price across all coins, which many people loosely call the network’s average cost basis.
A checked example
Use a small imaginary network with four coins.
| Coin | Price when it last moved |
|---|---|
| 1 | 10 |
| 2 | 10 |
| 3 | 40 |
| 4 | 100 |
Realized cap: 10 + 10 + 40 + 100 = 160.
Realized price: 160 ÷ 4 = 40.
Now suppose the market price today is 50. Market cap is 4 × 50 = 200. Compare that with the realized cap of 160. The ratio, 200 ÷ 160 = 1.25, is the figure discussed in the article on the MVRV ratio.
Next, suppose coin 4 moves today, with the price at 50. Its value in the realized cap is replaced: 100 becomes 50. The new realized cap is 10 + 10 + 40 + 50 = 110, and the new realized price is 110 ÷ 4 = 27.5. Notice that no coins were created or destroyed and no new money was necessarily invested, yet realized cap fell because one coin was revalued downward. All figures here are invented to show the mechanism.
What it describes
Realized cap is often described as a measure of the amount of capital that “went into” the network, since each coin is counted at a price someone was last willing to pay or receive. That description is only a rough fit. A more careful reading is that realized cap is an aggregate of last-moved prices, which is sensitive to how and why coins move.
Realized price offers a reference level. When market price is above it, the average coin is in profit relative to its last-moved price; when below, the average coin is at a loss. Some analysts watch how price behaves around that level, but there is no guarantee that it acts as support or resistance, a concept that belongs to technical analysis and rests on shaky evidence in many settings.
Where the measure goes wrong
Movement is not purchase. A coin sent between two wallets of the same owner is revalued at the day’s price, even though the owner’s real cost basis has not changed. Custody reshuffles by exchanges or funds can reprice large amounts at once.
Exchange trading often leaves no trace. Many buys and sells happen inside exchange accounts. The coins do not move on the chain, so their realized value stays at an old price even though ownership has changed.
Lost coins stay in the total. Coins that will never move keep their old last-moved value and remain in both the realized cap and the circulating supply. The article on lost coins explains why this clouds supply-based measures.
It is an average. A mean of last-moved prices hides the distribution. A network where half the coins were last moved at very low prices and half at very high ones can have the same realized price as one where all coins sit at the midpoint.
It is not total money invested. Realized cap does not include money paid for coins that have since been sold at a loss and cannot be tracked, nor does it capture off-chain derivatives or ETF share activity.
Provider differences. Methods for choosing the price of a day, handling exchange wallets or excluding certain outputs vary between data firms, so the same name can hide different numbers.
Using the idea carefully
Realized cap and realized price are most useful as an introduction to the idea that not all coins are equal in terms of when they were acquired. They also underpin other measures, such as ratios and profit-and-loss indicators. As with any on-chain metric, they describe the past and cannot say what price will do next.
Cryptocurrency prices are volatile, and people can lose all they invest. Nothing here is financial advice.