Market cap drift is the gradual change in a company’s or token’s market capitalization that comes from something other than a clean price move: a changing share or token count, a different data provider’s definition, or a timestamp mismatch. Search results for the phrase mostly show the DRIFT token, so we use it as a live case study, then show how the same mechanics apply to stocks.
The short version: market cap is price multiplied by supply, so it can drift when either input moves. Most readers only watch the price.
MarketcaplensPut Market Cap Changes in ContextCompare public-company market caps with share-price data, sector breakdowns, and historical insights in MarketCapLens’s company database.Explore market dataThere is no formal definition of the term. In practice, readers use it in three overlapping ways:
The third kind causes the most confusion. If you have ever seen one site say $11.6 million and another say $10.1 million for the same token, you have seen data drift, not a market disagreement.
If you want the base definition first, our plain-English guide to what market capitalization is covers the formula and the size categories.
DRIFT is the governance token of Drift Protocol, a Solana-based decentralized exchange offering perpetual trading, spot trading and lending, according to the project’s own governance announcement. It is a useful example because its supply is still being released on a schedule, so every driver of drift shows up at once.
On October 21, 2026, CoinGecko showed a price of about $0.01566, a market cap of $11.65 million, circulating supply of 743.214 million DRIFT, a maximum supply of 1 billion, and a rank of #1,137. These are live-market snapshots and change through the day, so treat them as a reading taken on that date.
A snapshot on the same day from The Block’s price page displayed a market cap near $10.1 million. Both pages define market cap the same way, as price multiplied by circulating supply. The gap comes from the inputs.
CoinGecko’s historical table, which labels its dates in UTC, gives us enough to separate price from supply. Here are three rows from that table, with the supply we back out by dividing market cap by the reported close:
| Date (UTC) | Market cap | Close | Implied supply |
|---|---|---|---|
| October 9, 2026 | $14,372,707 | $0.01848919 | about 777 million |
| October 11, 2026 | $13,598,876 | $0.01806695 | about 753 million |
| October 21, 2026 | $11,556,549 | $0.01554942 | about 743 million |
The arithmetic is ours, based on the figures in that table. Between October 9 and October 21, the close fell roughly 16% and the market cap fell roughly 20%. If market cap tracked price alone, the two percentages would match. They do not, because the supply figure behind the market cap changed too.
We will not say why. A shrinking circulating-supply figure can reflect a methodology revision, a reclassification of locked or burned tokens, or a data feed change. The table shows what happened, not the cause. That is the point of the exercise: a price chart alone would have hidden the second effect.
Fully diluted valuation multiplies the current price by the maximum supply instead of the circulating supply. For DRIFT on October 21, 2026, CoinGecko’s page put FDV at about $15.7 million against a market cap of about $11.6 million, a ratio of roughly 0.74.
That ratio tells you how much of the eventual supply is still to come. A ratio near 1 means most tokens or shares are already out. A low ratio means future issuance could dilute holders, if demand does not grow to match.
The same logic applies to stocks, where the gap usually comes from options, convertibles and restricted stock. Our guide on how analysts verify fully diluted market cap walks through a case where skipping the check led to a large error.
The research for this article turned up a clear case of definitions diverging. Drift’s November 2025 tokenomics update said 55.6% of total supply was in circulation after all major investor cliffs had passed. That is roughly 556 million tokens. The October 2026 aggregator figure is 743 million. These could differ because of timing, unlock progress or how each source treats certain allocations. If you build a model, you have to pick one definition and say which.
Tokens that were locked and then released enter the circulating count. Price does not need to move for market cap to rise, and a falling price can hide the effect.
Drift states that DRIFT has a maximum supply of 1 billion, distributed over five years. In its published allocation, 43% goes to ecosystem and trading rewards, 25% to protocol development, 22% to strategic participants and 10% to the airdrop. The launch airdrop documentation says up to 120 million tokens, 12% of supply, went to eligible participants.
Third-party trackers publish unlock schedules. Messari’s token unlock page lists recurring monthly releases of about 13.9 million DRIFT, worth roughly $217,790 at the price shown when the snapshot was taken. Check the live page for current dates, because schedules and prices change.
For an analyst, the practical lesson is to keep an unlock calendar and model circulating supply separately from price. Today’s market cap says nothing about the dilution still scheduled.
A token’s valuation and the business behind it can move apart. The Block’s page shows trading volume, total value locked and open interest next to the market cap, and each of these answers a different question than price does.
This matters for DRIFT in particular. Elliptic reported that Drift Protocol suffered a major security incident on April 1, 2026, with stolen assets valued at $286 million, and that total value locked fell from about $550 million to under $250 million, citing DefiLlama. A market cap of $11.6 million, then, reflects a very different situation from a market cap looking at a protocol with intact deposits. Reading the market cap alone, you would miss it.
Two habits help here:
If you want a method for putting valuation next to activity data, this walkthrough on how to analyze trading data for better decisions shows one way to organize the comparison.
Stocks drift too, usually more slowly. The mechanics:
You can check any single company by hand. On our market cap calculator, enter the price and the latest share count from the filing, then compare the result with whatever a screen shows. A gap of more than a rounding error means one of the inputs differs.
A market-cap time series is only as good as the metadata kept with each row. Here is a routine that works for both stocks and tokens.
We see the same mistake from readers of stock data every week: treating market cap as a measured fact instead of a calculation. It is price multiplied by a share count, and each of those two inputs has a source, a date and a definition. When a number looks off, we start with the share count, not the price.
That is why we show rankings of more than 2,500 listed companies with prices refreshed several times a day, and why we publish guides on the definitions behind them. A rank is only useful when you know what went into it. We would rather you check one company against its filing than trust any ranking blindly, ours included.
Our view on crypto tokens is the same, with one more caution. A token’s circulating supply can change on a schedule that the market cap does not reveal. If you hold or analyze an asset with a long emission plan, the unlock calendar is part of the valuation, not a footnote to it.
— MarketCapLens
If you track US-listed stocks, start with our market cap rankings to see how companies stack up by size, then open a company page such as Meta Platforms to see its price and market cap together. To test the number, use the market cap calculator with a share count from the latest filing. For the gap between equity value and the whole business, read market cap versus enterprise value.
Here is the routine applied to a stock, with invented round numbers for illustration only.
Suppose a screen shows a company at a $50.00 price and a market cap of $10.0 billion. That implies 200 million shares. Now you open the latest quarterly filing and the cover page reports 190 million shares outstanding, because the company has been buying back stock. At the same price, the market cap is $9.5 billion. The screen is 5% high, and none of that difference came from the market.
Now suppose the price rises 4% over the next month and the company retires a further 2% of its shares. The market cap changes by roughly 4% minus 2%, or about 2%. A reader who looked only at the price chart would think the company’s value rose twice as much as it did.
The same decomposition worked on the DRIFT table: price down about 16%, supply figure down about 4%, market cap down about 20%. The method does not change when the asset does.
For readers who value a business directly rather than relying on market price, a DCF calculator gives an intrinsic value per share to set against the market’s number.
It is the movement in a market capitalization figure that does not come from price alone. Changes in share or token supply, differing provider definitions and timing mismatches all contribute. Splitting a change into a price part and a supply part shows which one you are looking at.
DRIFT is the governance token of Drift Protocol, a Solana-based decentralized exchange. On October 21, 2026, CoinGecko listed it at about $0.01566, with a market cap of about $11.65 million. Prices change constantly, so check a live source before relying on any figure, and read it against the security incident noted above.
No. Market cap uses the supply in circulation now. FDV uses the maximum supply, so it is equal to or higher than market cap. The ratio between them shows how much future supply could still be released.
Usually the supply input differs, or the data was taken at a different time. Providers may count locked, burned or vested units differently. Pick one source for a series and record its timestamp.
Yes. Buybacks reduce the share count and new issuance raises it, so the market cap can change at an unchanged price. A screen that updates shares only when a new filing arrives can also be out of date between filings.
For informational purposes only and is not investment advice. Do not rely on the facts, figures, ticker symbols, or other statements in this article — they may be incomplete, outdated, or incorrect, and we are not responsible for errors. See our disclaimer.