Key Takeaways
- What it is: The net unrealized profit or loss embedded in current supply relative to market value.
- How it is built: Unrealized profit and loss are estimated from current price versus last-movement price, aggregated and normalized by market capitalization.
- Core expression: NUPL = (market capitalization − realized capitalization) ÷ market capitalization, under the chosen methodology.
- Best use: Positive values imply aggregate unrealized profit; negative values imply aggregate unrealized loss. Cohort versions show which holder groups carry that condition.
- Main limitation: The metric inherits realized-cap assumptions, ignores off-chain cost basis, and can stay extreme during persistent trends.
- Practical rule: Check which holder cohort is driving an extreme NUPL reading before treating it as a market-wide condition.
Who This Guide Is For
NUPL is for readers asking how much paper gain the whole market is sitting on, not how much has been cashed out. It is the unrealized counterpart to realized profit and loss, and confusing the two is the most common error on this topic.
Anyone reading a NUPL chart with coloured sentiment bands needs the interpretation and pitfalls sections in particular, because those bands are fitted labels, not measurements, and their boundaries vary by publisher. Analysts should read the pitfalls section before using NUPL as confirming evidence for a price view, since NUPL is largely a transformation of price.
Educational content. Not individualized financial advice.
What Does NUPL Measure?
NUPL measures the share of total market value that is unrealized gain. It compares what the entire coin supply is worth now against what it was worth the last time each coin moved, and expresses the difference as a fraction of current market value.
Unlike SOPR and realized profit and loss, NUPL covers the whole supply, not just what moved. A coin that has not been touched in eight years contributes to NUPL every single day. That makes NUPL a state metric describing the market's aggregate position, where the spent-output metrics are flow metrics describing behavior.
Plain-language definition
NUPL is the fraction of the market's value that exists only on paper. At 0.6, sixty cents of every dollar of market capitalization is gain that nobody has taken.
Technical definition
NUPL is (market capitalization − realized capitalization) ÷ market capitalization. Realized capitalization is the sum over all unspent outputs of units × price at the output's creation, which makes it the aggregate cost basis of the circulating supply. NUPL is therefore bounded above by 1 and can go negative when market capitalization falls below aggregate cost basis.
How Is NUPL Constructed?
NUPL has only two inputs, and both are aggregates, which makes it far simpler to build than the spent-output metrics and far more sensitive to how one of those inputs is defined.
- Build realized capitalization. Walk the entire unspent output set. For each output, multiply its size by the price at its creating block and sum. This is a full-UTXO-set operation, not a per-interval one.
- Compute market capitalization as circulating supply times current price.
- Subtract and divide. The difference over market capitalization gives NUPL.
Realized capitalization is where the judgment lives
Circulating supply is a definitional choice, not an observation. Whether to include coins provably burned, coins in outputs that have never moved since the earliest blocks, or coins whose keys are known to be lost changes realized capitalization and therefore NUPL. Providers make different calls and rarely publish the resulting delta.
The lost-coin problem is structural and permanent. Coins last moved at very low historical prices sit in realized capitalization at those prices forever. They depress aggregate cost basis, which mechanically raises NUPL for every future observation. There is no correction for this that does not require an unverifiable judgment about which coins are gone.
Formula and Measurement Logic
NUPL = (market cap − realized cap) ÷ market cap
Rewriting the expression exposes the problem with using NUPL as independent evidence. Since market cap is supply times price, and supply changes slowly, NUPL is approximately 1 − (realized cap ÷ (supply × price)). Realized capitalization moves only when coins move, which is a small fraction of supply per day. On any given day, therefore, almost all of NUPL's variation comes from the price term.
NUPL is close to a monotone transformation of price on short horizons. It is not a second, independent opinion about the market. Its value is in the slow-moving denominator, which encodes years of accumulated cost basis, not in the daily print.
| Input | Decision | Effect |
|---|---|---|
| Circulating supply | Include or exclude provably burned coins | Shifts both capitalizations |
| Lost coins | No practical exclusion available | Permanently depresses realized cap, raises NUPL |
| Historical prices | Which reference for pre-liquid-market coins | Largest effect on the oldest, cheapest supply |
| Current price | Feed and timestamp | Dominates daily variation |
| Entity adjustment | Internal transfers reset cost basis or not | Unadjusted series drift upward on exchange activity |
How Should NUPL Be Interpreted?
NUPL is commonly displayed with named sentiment bands running from capitulation through euphoria. Those band boundaries are fitted to past cycles by whoever drew the chart. They are not properties of the metric, they differ between publishers, and they have no mechanism forcing them to hold.
Two structural readings do hold regardless of banding.
- NUPL below zero means market capitalization has fallen below the supply's aggregate cost basis. In aggregate, the market is underwater. This is an arithmetic fact, not a fitted threshold.
- NUPL near its historical ceiling means most market value is unrealized. That describes a large overhang of paper gains, which is a statement about position, not about what happens next.
The honest use is descriptive: NUPL tells you how much unrealized gain exists to potentially be realized. It does not tell you whether it will be. Pair it with realized profit and loss to see whether that overhang is actually being converted.
Because the lost-coin effect ratchets NUPL upward over time, comparing today's level against a level from an earlier cycle is comparing against a different measurement baseline. Do not treat a prior cycle's peak NUPL as a target.
Step-by-Step Workflow
- Confirm the circulating-supply definition and whether burned coins are excluded.
- Confirm whether the realized capitalization is entity-adjusted; the unadjusted series drifts upward with exchange activity.
- Strip any sentiment bands from the chart before analysis, then decide whether to reintroduce them with stated boundaries.
- Plot realized capitalization separately. Its slope is the part of NUPL that is not price.
- Check whether the current move is coming from the numerator or the denominator by comparing NUPL's change against price's change over the same window.
- Pair with realized profit and loss to see whether unrealized gain is being converted.
- Do not compare a level against a prior cycle without noting the lost-coin ratchet.
Worked Hypothetical Scenario
Assume a simplified market with 19,000,000 coins outstanding and a current price of $60,000, giving market capitalization of $1.14 trillion. Suppose the aggregate cost basis of that supply, computed by summing each coin's price at last movement, is $450 billion.
NUPL = (1,140 − 450) ÷ 1,140 = 690 ÷ 1,140 = 0.605. About 61 cents of every dollar of market value is unrealized gain.
Now let price fall 25 percent to $45,000 with no coins moving at all. Market capitalization becomes $855 billion; realized capitalization is unchanged at $450 billion because realized capitalization only updates when coins move. NUPL = (855 − 450) ÷ 855 = 0.474.
NUPL fell from 0.605 to 0.474, a drop of 0.13, on a day when literally no holder did anything. This is the point of the formula section: a large NUPL move is not evidence of a behavioral change. To find behavior, look at whether realized capitalization moved, which in this example it did not at all.
What Can Make the Interpretation Wrong?
- Sentiment bands read as thresholds. The named zones are fitted labels drawn by a chart publisher. Different publishers use different cutoffs and none of them are derived from the metric.
- Mistaking NUPL for independent evidence. Price appears in the denominator and drives almost all daily variation. Confirming a price view with NUPL is close to confirming price with price.
- The lost-coin ratchet. Permanently immobile coins hold ancient cost bases, depressing realized capitalization and biasing NUPL upward over time. Cross-cycle level comparisons are not like for like.
- Unrealized is not pending. A large paper gain has no mechanism compelling it to be sold. Long-term holders can and do carry gains through entire cycles.
- Internal transfers reset cost basis. On unadjusted series, an exchange moving coins between its own wallets marks them to the current price, raising realized capitalization and lowering NUPL with no economic content.
- Supply definition drift. Changing whether burned or unmoved early coins count shifts the whole series, and providers do change these definitions.
Cross-Network and Provider Comparison
NUPL needs realized capitalization, and realized capitalization needs a per-unit cost basis, so the same UTXO requirement applies here as to SOPR. Bitcoin supports it directly.
On account-based chains the aggregate cost basis has to be reconstructed from transfer history under an inventory convention, and because NUPL is a whole-supply metric that reconstruction has to cover every account rather than just the ones that transacted recently. Errors accumulate across the entire history rather than washing out.
Assets with ongoing issuance, staking rewards, or fee burns need an explicit rule for the cost basis of newly created units. A staking reward received at the current price enters realized capitalization at that price and slightly lowers NUPL, which is arithmetically correct but means a high-issuance chain's NUPL is partly a function of its emission schedule rather than of holder behavior.
Advanced Analytical Methods
Cohort NUPL
Computing NUPL separately for long-term and short-term holder supply is the most informative variant, because the two cohorts hold radically different cost bases. Aggregate NUPL is a weighted blend that can mask a situation where recent buyers are underwater while long-held coins carry large gains.
The relationship to MVRV
NUPL and MVRV are algebraically linked: NUPL = 1 − (1 ÷ MVRV). They are the same information in two shapes, so treating a NUPL reading and an MVRV reading as two independent confirmations is a mistake.
Realized capitalization slope
The change in realized capitalization, rather than NUPL itself, isolates the non-price component. A rising realized capitalization means coins are moving at prices above their old cost basis, which is genuine information about the market.
Entity-adjusted realized capitalization
Excluding transfers where the sending and receiving clusters match prevents internal exchange plumbing from resetting cost basis. It inherits the accuracy limits of whatever clustering produced the labels.
Practical Checklist
- I know the circulating-supply definition behind both capitalizations.
- I know whether realized capitalization is entity-adjusted.
- I am not treating published sentiment bands as measured thresholds.
- I checked whether the recent move came from price or from realized capitalization.
- I noted the lost-coin ratchet before any cross-cycle level comparison.
- I am not counting NUPL and MVRV as two independent signals.
- I paired NUPL with realized profit and loss to test whether gains are being converted.
- I split by holder cohort before describing market-wide positioning.
Frequently Asked Questions
What is the difference between NUPL and realized profit and loss?
NUPL measures unrealized gain across the entire supply, including coins that have not moved in years. Realized profit and loss measures gain actually locked in by coins that moved. NUPL is a state metric describing position; realized profit and loss is a flow metric describing behavior.
Are the coloured NUPL sentiment bands measured thresholds?
No. The named zones running from capitulation through euphoria are fitted labels drawn by whoever published the chart. Boundaries differ between publishers, they are derived from a small number of past cycles, and nothing in the metric construction forces them to hold.
Why is NUPL not independent evidence about price?
Price appears in the denominator of every observation, and realized capitalization updates only when coins move, which is a small share of supply per day. Almost all of NUPL daily variation therefore comes from the price term, so confirming a price view with NUPL is close to confirming price with price.
What does a negative NUPL mean?
It means market capitalization has fallen below the aggregate cost basis of the circulating supply, so the market is underwater in aggregate. Unlike the sentiment bands, this is an arithmetic fact rather than a fitted threshold.
How do lost coins affect NUPL?
Coins whose keys are gone hold their ancient cost basis in realized capitalization forever. That depresses the aggregate cost basis and mechanically raises NUPL over time, which means comparing a current level against a level from an earlier cycle is not a like-for-like comparison.
Are NUPL and MVRV two separate signals?
No. They are algebraically linked: NUPL equals 1 minus the reciprocal of MVRV. They present one observation in two shapes, so citing both as corroborating evidence is a methodological error rather than a robustness check.
Does a high NUPL mean selling is imminent?
No. A large paper gain has no mechanism compelling it to be realized, and long-term holders routinely carry gains through entire cycles. To see whether the overhang is actually being converted, pair NUPL with realized profit and loss.
Can NUPL be computed for a cohort of holders?
Yes, and cohort versions are common. Restricting the calculation to supply held beyond an age threshold, or to supply below it, produces separate readings for long-held and recently acquired coins, which frequently move in opposite directions. The recent cohort's unrealized position responds quickly to price because its cost basis is close to the current market, while the long-held cohort's barely moves. The aggregate mixes both, so cohort versions carry more information at the cost of depending on where the threshold is set.
Why is NUPL expressed as a ratio rather than a currency amount?
Because the underlying quantity grows with the network and would be incomparable across time in raw form. Total unrealized profit measured in currency rises simply because there are more coins worth more money, so a figure from one cycle cannot be set against another. Dividing by market value produces a bounded, scale-free number that can be compared across periods. The cost is the usual one for ratios: the same value can arise from very different absolute amounts, so the scale has to be supplied separately.
References
These sources should be reviewed during editorial verification. They support data structures and methods, not the hypothetical conclusion. Provider formulas, chain rules, and APIs can change. Confirm current documentation before publication.
- Glassnode: Realized Capitalization Guide: Realized-cap methodology.
- Glassnode: Metric Catalog: Address, supply, valuation, and holder metrics.
- Coin Metrics: Active and Realized Market Capitalization: Realized capitalization methodology.
- Coin Metrics: Valuation Metrics: Realized-value and network valuation definitions.
- Coin Metrics: Network Data Glossary: Cross-network address, account, ledger, and UTXO definitions.
- Bitcoin Developer Guide: Transactions: UTXO transaction construction and spending.