Realized cap: valuing coins at the price they last moved

What does realized cap measure?#

Market capitalization multiplies today’s price by the number of coins. Realized cap takes a different route: it looks up, for every unit of supply, the price on the day that unit last moved on-chain, and adds those values together. Coin Metrics defines it as the sum of USD value based on the closing price on the day each native unit last transacted ^[1].

The original goal was to stop long-lost coins from inflating valuations. Coin Metrics explains that a large share of bitcoin has not moved since 2010 and is presumed lost; realized cap counts those coins at the tiny price they had when they last moved, rather than at today’s price ^[1]. Over time, many analysts started to read realized cap as a rough estimate of the market’s total cost basis — roughly, the money holders paid for the coins they still hold ^[2].

Why does realized cap depend on UTXOs?#

Bitcoin does not keep account balances. It keeps a set of UTXOs — unspent transaction outputs, each a chunk of bitcoin that can be spent as an input in a new transaction ^[3]. Every output was created in a specific block, so it has a date, and that date has a market price. That is what lets a data provider attach a “last moved” price to every coin.

A UTXO can only be spent once and must be spent in full, so most transactions also create a change output that sends the surplus back to the spender ^[4]. That change output is brand new, so its coins are re-priced at today’s price even though the owner kept them. For account-based chains such as Ethereum, Coin Metrics instead uses the last time an account sent funds, or the time it was created, whichever is more recent ^[1]. Our guide to the UTXO and account models explains the difference.

How is realized cap calculated?#

The last line is the key lesson. Realized cap rose by $10,000 although the price did not change and nobody needed to buy anything — the 400 coins simply moved and were re-priced at $30.

How one coin’s realized value gets reset

How is realized cap different from market cap?#

Coin Metrics points out that market cap quietly assumes the whole supply is liquid and available to trade, while realized cap down-weights coins that have sat untouched for years ^[1]. Neither is “the true value” of a network; they answer different questions.

How do analysts use realized cap?#

Mostly as a building block. Divide market cap by realized cap and you get the MVRV ratio ^[1]. Subtract realized cap from market cap and divide by market cap, and you get NUPL ^[5]. Divide realized cap by the number of coins and you get the realized price, an average on-chain cost per coin ^[6]. Coin Metrics notes that realized cap has been used to build many popular oscillators of this kind ^[1].

On its own, the direction of realized cap says something about the prices at which coins are changing hands. When it rises, coins are moving at prices above the ones they last moved at (newly mined coins also add to it); when it falls, coins are moving below their previous prices. Coin Metrics also splits Bitcoin’s realized cap into age bands — from coins moved within a day to coins untouched for ten years or more — and the bands sum back to the total ^[1]. That age view connects realized cap to HODL waves.

Where does realized cap mislead?#

• A move is not a sale. The method assumes that moving coins between wallets means they were bought at that day’s price ^[6]. Exchange cold-storage reshuffles and wallet consolidations re-price coins without any trade.
• Lost coins still count. They are counted at old prices, which shrinks the distortion but does not remove it.
• Providers differ. Price conventions, clustering of exchange wallets and data corrections can change values, and Glassnode notes that some historical on-chain figures are revised after the fact ^[7].
• Some chains are excluded or adjusted. Coin Metrics does not publish realized cap for fully private coins such as Monero, scales it for coins with optional privacy such as Zcash, and ignores tokens issued on top of a chain ^[1].
• Cross-chain comparisons are weak. Each chain has its own usage patterns, lost-coin share and history, so a bigger realized cap does not mean a safer asset.

Who created realized cap?#

Coin Metrics lists realized cap as one of its flagship metrics and says it was first introduced in a 2018 talk by Nic Carter ^[1]. Look Into Bitcoin, a chart provider, attributes the original creation to Antoine Le Calvez in 2018 ^[6]. The sources disagree on the person but agree on the year, so we show both.

What mistakes do beginners make here?#

• Reading it as total money invested

  Coins are re-priced every time they move, so realized cap is an accounting estimate, not a tally of dollars that entered the market.

• Treating every move as a trade

  Moving coins to your own new wallet, or an exchange reorganising its wallets, resets realized values just like a sale would.

• Comparing chains directly

  Realized cap on two different blockchains reflects different histories and usage. Compare a chain with its own past, not with another chain.

• Ignoring which provider you are reading

  Pricing and wallet-clustering choices differ between data providers, so numbers rarely match exactly. Stick with one provider when comparing over time.

Frequently asked questions#

The bottom line#

Realized cap swaps today’s price for each coin’s last on-chain price. That makes it slow, resistant to daily swings and a useful estimate of aggregate cost basis — but it treats every move as a purchase and keeps lost coins in the sum.

Its real value is as an ingredient. Continue with realized price, the MVRV ratio and our guide to realized price and cost basis.

Sources#