Realized capitalization

Coin Metrics published the measure in 2018 as an answer to the obvious flaw in a headline valuation, which prices coins that have not traded in a decade at today's quote. A coin that last moved in 2013 at 130 dollars contributes 130 dollars, not the current price. The result behaves like an aggregate cost basis for the entire network, and it barely moves when the price does.

How it works

The realized capitalization calculation walks the set of unspent outputs, prices each one at the exchange rate on the day it was created, and sums the results.

Nothing here depends on current prices. An output created in a 2012 block is marked at 2012's rate; an output created this morning is marked at this morning's rate. Because bitcoin's early blocks were mined when no exchange rate existed at all, coins from that period contribute close to nothing, which is exactly the intended behaviour: supply that has never traded should not be valued as if it had.

The figure only changes when coins move. Spending an old output removes its ancient valuation from the total and replaces it with a new one at today's price, so realized capitalization steps up during periods when long-held supply is being sold and stalls when nobody is transacting. It cannot fall sharply the way a price chart can, because the only way down is holders moving coins at prices below what those coins were previously marked at.

That mechanism also creates its main distortion. Moving coins between your own wallets, consolidating outputs to save on fees, or an exchange rotating its cold storage all re-mark supply at the current price without anyone selling anything. Analytics providers strip out the most obvious internal shuffles, but the estimate is still an estimate.

Where you see it

Realized capitalization appears mostly as the denominator of other metrics rather than as a headline in its own right.

Divide market capitalization by it and you get MVRV. Subtract it from market capitalization and you get aggregate unrealized profit, the paper gain sitting across every held coin. Realized profit and loss, which measures the change in valuation at the moment coins move, comes from the same underlying data.

It is also read as a rough floor. Market capitalization has fallen below realized capitalization only in the deepest phases of past bear markets, including late 2018 and much of the second half of 2022, and those windows were short. A market trading under its own aggregate cost basis means the average coin is held at a loss, which historically has not lasted long, though a small sample of past cycles is thin evidence for anything.

For someone buying bitcoin, the practical value is perspective rather than timing. It tells you the price the market as a whole is carrying, which is a more grounded reference point than a headline that revalues coins nobody has touched since 2011.

Realized capitalization vs cost basis

Realized capitalization is a network-wide estimate; cost basis is the specific number your tax authority expects from you.

Yours includes what you actually paid plus fees, tracked per lot, under whichever accounting method your jurisdiction allows. The IRS has treated digital assets as property since Notice 2014-21, so every disposal is matched against a particular lot. Realized capitalization has no idea who owns what, treats a wallet-to-wallet transfer as a fresh mark, and would give you a wrong answer on a tax return. They measure the same idea at completely different resolutions.