Stacks (STX): What It Is, Uses and Risks

Stacks is a blockchain that adds smart contracts and apps to Bitcoin. It is usually described as a Bitcoin layer 2. Its own description says apps built on it inherit Bitcoin's properties, run their logic in smart contracts, are controlled by code rather than a company, and are open to anyone.

Stacks has its own network, its own blocks and its own token, STX. It is tied to Bitcoin through a mechanism called Proof of Transfer, which anchors Stacks activity to the Bitcoin chain. Bitcoin itself has limited scripting, so Stacks supplies a separate place where programmable logic can run while still pointing back to Bitcoin for security.

STX is the native token of the Stacks chain. At the time of writing it ranks around 90th by market capitalization, and the project is grouped with layer 2 and infrastructure tokens. Stacks is not a copy of Bitcoin and it does not change how Bitcoin works. It is a separate network that builds on Bitcoin, and the extent of that security inheritance depends on how the design is implemented.

STX has several roles on the Stacks network. Public explanations agree on these main ones:

• Transaction fees. STX pays for activity on the chain, including sending tokens, calling smart contracts and deploying new ones.
• Smart contracts and assets. The token is used when creating contracts and registering new assets on the network.
• Stacking. Holders can lock up STX for a period to take part in the Proof of Transfer system. In return they receive rewards paid in Bitcoin. This is similar in spirit to staking, but the rewards come in BTC rather than in the native token.
• Miner and signer payouts. Fees and rewards flow to the participants who keep the network running.

Proof of Transfer works like this. Miners spend Bitcoin to compete for the right to produce Stacks blocks, and that Bitcoin is passed on to stackers. This is why STX is often said to fuel the link between Stacks and Bitcoin.

More recent material also describes STX as the asset institutions can use to earn Bitcoin yield through stacking. Treat any yield as variable, since it depends on participation levels and on how much Bitcoin miners commit.

As of 2026-11-05, the data lists about 1.88 billion STX in circulation. The total supply is the same figure, and no maximum supply is recorded in the data. Because circulating and total supply match, the fully diluted valuation equals the market cap, at about $649.1M.

The price was around $0.345 at the time of writing. The 24-hour trading volume was about $46.0M. The token was up roughly 19% over seven days and roughly flat to slightly down over one year, which shows how quickly its trend can change.

For context, the all-time high was about $3.86 on 2024-04-01 and the all-time low was about $0.0456 on 2020-03-12. The current price sits far below the peak.

The data given here does not describe the issuance schedule, so this page does not go into emissions or allocations. Check the project's own documentation for how new STX enters circulation, since the schedule determines how much supply growth holders should expect. Supply and price figures move constantly, so use them only as a snapshot.

STX is the native token of the Stacks chain. It is not a token issued on another blockchain, so holding it means using a wallet that supports the Stacks network. Stacks has its own address formats and its own wallets, separate from those used for Ethereum-style tokens.

Most people get STX through large centralized exchanges, where it trades against stablecoins and major assets such as BTC. The token is listed on many of them, which is why its daily volume is substantial for its size. Some holders keep STX on an exchange for convenience, while others move it to a self-custody wallet.

Holders who want to participate in stacking can do so through wallets and services built for the network. Some exchanges and pools also offer stacking on a customer's behalf. This adds another party to the arrangement, with its own fees and risks.

The Stacks ecosystem includes apps for lending, trading and other uses, and people interact with them using STX for fees. Anyone trying these apps should read each project's terms carefully and start with small amounts.

Stacks began as Blockstack, a project aimed at problems of internet privacy, security and data breaches, especially around cloud storage. The idea was to let people own their data and sign in to apps without handing control to big companies. The project was later renamed Stacks, and its focus moved to bringing smart contracts to Bitcoin.

The network went through a major redesign known as Stacks 2.0, which introduced Proof of Transfer and the STX stacking system. A later upgrade called Nakamoto changed how blocks are produced and is associated with faster confirmation times and the role of signers. A Bitcoin-backed asset called sBTC was also introduced to let Bitcoin be used inside Stacks apps. The exact dates and technical details are best confirmed in the project's release notes.

STX reached its all-time high of about $3.86 on 2024-04-01, then fell far below that level. It also drew attention in 2025 when custody providers and institutional services expanded support for the network. The token is also included in several crypto index products, which reflects its standing as an established project.

STX carries the usual risks of a mid-sized crypto asset, plus some specific to its design.

• Price volatility. The token has traded far below its 2024 peak and can swing by double digits in a week. Nothing in the data suggests the price follows any predictable path.
• Dependence on Bitcoin. Stacks relies on Bitcoin activity and on miners spending BTC. Changes in Bitcoin fees or miner behavior can affect the system and its rewards.
• Security model. A layer 2 is not the same as Bitcoin itself. Users trust Stacks' own software, signers and contracts, and a flaw in any of them could cause losses.
• Smart contract risk. Apps on the network can have bugs, and audits do not remove that risk.
• Stacking risk. Locked STX cannot be sold during the lockup period, and rewards are not guaranteed.
• Competition. Many other projects are building Bitcoin layer 2 systems, so adoption is uncertain.
• Custody and regulation. Exchange failures, rule changes or delistings can affect access and liquidity.

This page is general information, not investment advice. Only commit money you can afford to lose.

How you store STX depends on how much you hold and how you use it.

For small amounts or frequent trading, an exchange account is convenient, but you rely on the exchange's security and solvency. Use a strong unique password, two-factor authentication through an authenticator app, and withdrawal address allowlists where offered.

For longer-term holdings, a self-custody wallet that supports the Stacks network gives you control of your keys. Hardware wallets that support STX add protection by keeping the private keys offline. Whichever wallet you pick, check that it explicitly lists Stacks and that you downloaded it from the developer's official source.

Write your recovery phrase on paper or metal and keep it offline in a secure place. Never type it into a website, share it in a chat or store it in a photo or cloud note. No legitimate support team will ask for it.

Before a large transfer, send a small test amount first and confirm that it arrives. Be careful with unsolicited messages, fake airdrops and look-alike wallet sites, which are common ways people lose funds.