Circulating Supply

Tokenomics Updated Feb 2026

What is Circulating Supply?

Circulating supply refers to the total number of cryptocurrency tokens or coins that are currently available to the public for trading, buying, selling, and transacting. It represents the portion of a cryptocurrency’s total supply that is actively circulating in the open market, as opposed to tokens that are locked, reserved for founders or investors, held in treasury, or otherwise restricted from public access. Understanding circulating supply is fundamental to evaluating a cryptocurrency’s market value, liquidity, and potential price behavior.

Circulating supply is the single most important metric for calculating market capitalization, which is computed as circulating supply × current price. As of mid-2025, Bitcoin’s circulating supply is approximately 19.85 million BTC out of a 21 million max supply, giving it a market cap exceeding $1.3 trillion at $70,000+ per coin. Ethereum’s circulating supply hovers around 120 million ETH (it fluctuates due to burn mechanics), while major stablecoins like USDT have circulating supplies exceeding $140 billion — each USDT backed by off-chain reserves.

The metric matters because tokens are rarely all available at once. A newly launched token may report a fully diluted valuation (FDV) of $1 billion but have only 5% of its supply circulating. When the remaining 95% unlocks over the following years, the sell pressure can cause dramatic price declines. This gap between market cap and FDV is one of the most important risk factors in token evaluation.

How Circulating Supply Works / Key Mechanics

Circulating Supply vs. Total Supply vs. Max Supply

Metric	Definition	Example (BTC)	Example (ETH)
Circulating Supply	Tokens freely trading in the market	~19.85M	~120M (fluctuates)
Total Supply	All tokens minted minus burned tokens	~19.85M (≈ circulating)	~120M (≈ circulating)
Max Supply	Absolute cap set by protocol	21M (hard cap)	None (no cap)
FDV	Max supply × current price	~$1.47T (at $70K)	N/A

What Is Excluded from Circulating Supply

Circulating supply is calculated by starting with total minted tokens and subtracting restricted tokens:

Team and advisor allocations subject to vesting schedules that have not yet been released
Tokens held in treasury or reserve not yet allocated for specific purposes
Tokens locked in smart contracts such as staking, liquidity pools, or governance timelocks
Tokens reserved for ecosystem incentives including grants, community rewards, and partnership allocations
Burned tokens permanently removed from circulation via burn addresses or EIP-1559

The challenge lies in opacity. Some projects release tokens from vesting gradually, making real-time tracking difficult. Data providers like CoinGecko and CoinMarketCap maintain their own methodologies, which can produce different figures for the same token — discrepancies of 5–15% are not uncommon for newer projects.

Token Unlock Schedules and Their Impact

Vesting schedules determine when locked tokens enter circulating supply. A typical structure is a 1-year cliff followed by 3–4 years of linear vesting. Major unlock events can cause significant price volatility:

Event Type	Typical Impact	Example
Cliff unlock (1-year)	Large one-time supply increase, high sell pressure	Many L1/L2 tokens see 20–40% supply unlock at first cliff
Linear daily/weekly vesting	Gradual, predictable dilution	Most team/investor allocations vest daily
Ecosystem/community releases	Depends on deployment pace	Arbitrum DAO controls ~$4B+ in ARB tokens
Staking unlocks	Moderate, often re-staked	Ethereum validators can withdraw staked ETH since April 2023 (Shapella)

Projects where circulating supply at launch is very small relative to total supply — with large unlocks scheduled soon — carry the highest dilution risk. For example, some 2023–2024 token launches had FDV-to-market-cap ratios exceeding 20:1, meaning 95%+ of tokens were locked and would eventually hit the market.

Stablecoin Supply Dynamics

Stablecoins present a unique circulating supply model. USDC and USDT supplies are demand-elastic: when users deposit USD with the issuer, new stablecoins are minted (increasing supply); when users redeem, tokens are burned (decreasing supply). USDT’s circulating supply grew from approximately $20 billion in 2020 to over $140 billion by mid-2025, reflecting the explosive growth of stablecoin-mediated trading and cross-border payments. This elasticity means stablecoin supply is a real-time indicator of crypto market demand and capital flows.

Real-World Examples / Notable Cases

Bitcoin: The cleanest circulating supply model. Approximately 19.85 million BTC are in circulation as of mid-2025, with the remaining ~1.15 million to be mined through block rewards that halve every four years. Supply increases by ~0.8% annually post-2024 halving (3.125 BTC/block, ~144 blocks/day). An estimated 3–4 million BTC are permanently lost (forgotten keys, burned, Satoshi’s stash), reducing effective circulating supply further.

Ethereum: Dynamic and sometimes deflationary. After EIP-1559 (August 2021), a base fee is burned on every transaction. After The Merge (September 2022), issuance dropped to ~0.5–1% annually. During high-activity periods, more ETH is burned than issued, making supply deflationary. From The Merge to mid-2025, Ethereum’s net supply change has oscillated between slightly inflationary and deflationary depending on gas prices and staking participation (~34M+ ETH staked).

Arbitrum (ARB): A textbook case of circulating supply vs. FDV. ARB launched in March 2023 with a total supply of 10 billion tokens but only 1.275 billion in initial circulating supply (12.75%). The remaining 87.25% — including 40% to the Arbitrum DAO treasury and significant team/investor allocations — represents massive future unlock pressure. At a $2 billion FDV, the gap between market cap ($1.4B at launch) and FDV was a key consideration for investors.

Solana (SOL): No max supply. Circulating supply is approximately 470 million SOL as of mid-2025. Solana’s initial inflation rate of 8% decreases by 15% per year, targeting a long-term rate of 1.5%. This means circulating supply grows at a decelerating but persistent rate — investors must account for ongoing dilution.

Risks / Considerations

Low float, high FDV risk: Tokens with small circulating supply relative to FDV face severe dilution risk. A token with $50M market cap but $2B FDV is effectively pricing in massive future supply that will enter the market.
Unlock event volatility: Track vesting schedules on tools like TokenUnlocks, CryptoRank, or Messari. Large unlocks (especially cliff unlocks) frequently correlate with 10–30% price declines in the surrounding weeks.
Data provider discrepancies: CoinGecko and CoinMarketCap may report different circulating supplies for the same token. Always cross-reference multiple sources and check the project’s official documentation.
Manipulation risk: Some projects include restricted tokens in reported circulating supply to inflate market cap, or exclude freely tradeable tokens to hide dilution. Verify against on-chain data when possible.
Stablecoin transparency: USDT’s circulating supply is backed by reserves that Tether attests to quarterly. USDC publishes monthly attestations from Circle. Always monitor these reports if holding or relying on stablecoin liquidity.
Lost tokens reduce effective supply: For Bitcoin, an estimated 15–20% of supply is permanently lost, meaning the effective circulating supply is lower than the reported figure.

Frequently Asked Questions

Q: What is the difference between market cap and fully diluted valuation (FDV)? A: Market cap = circulating supply × price. FDV = max supply (or total supply) × price. If a token has 10% of its supply circulating at $1 with a max supply of 1 billion, the market cap is $100 million but the FDV is $1 billion. FDV represents the valuation if all tokens were circulating at the current price — useful for understanding total project value but potentially misleading if most tokens will unlock and create sell pressure.

Q: Does staking reduce circulating supply? A: Not exactly. Staked tokens are technically still in circulating supply (the holder owns them), but they are locked and not available for immediate sale. Data providers differ on whether to count staked tokens as circulating. The practical effect is that staking reduces sell-side liquidity even if it does not change the reported circulating supply figure.

Q: Where can I find accurate circulating supply data? A: CoinGecko and CoinMarketCap are the leading aggregators. For on-chain verification, use Etherscan, Solscan, or the relevant blockchain explorer. Tokenomics dashboards on TokenUnlocks and Messari provide detailed breakdowns of circulating vs. locked vs. vested tokens. For institutional-grade data, providers like Glassnode and Nansen offer granular supply analytics.

Q: Can a project change its circulating supply? A: Yes, through several mechanisms: token burns (reducing supply), additional minting (increasing supply, if the protocol allows), accelerated vesting (moving locked tokens to circulating faster), or governance decisions to lock/unlock allocations. Tokenomics is not immutable for many projects — always read the governance structure and any upgrade mechanisms.