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What is Bitcoin? BTC Basics, Supply and Risks Explained

Last updated: October 31, 2026 What is Bitcoin? Bitcoin is the cryptocurrency identified by the symbol BTC in CoinGecko’s market data. Understanding the figures attached to it means separatin

AnonymousCryptoCompass newsroom
October 31, 2026
5 min read
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Last updated: October 31, 2026

What is Bitcoin? Bitcoin is the cryptocurrency identified by the symbol BTC in CoinGecko’s market data. Understanding the figures attached to it means separating the asset from its changing price, the businesses that handle it and the funds that offer exposure to it.

Key Takeaways

  • CoinGecko identifies Bitcoin by the ticker BTC and lists its maximum supply as 21 million coins.
  • A Bitcoin price quote and its total market value describe different measures.
  • BeInCrypto describes spot Bitcoin ETFs as a way for brokerage customers to access Bitcoin exposure.
  • Price declines and interrupted exchange access are distinct risks, even when they occur together.

What does BTC mean?

CoinGecko uses BTC as Bitcoin’s symbol. A BTC price quote on that page therefore refers to Bitcoin, not a separate cryptocurrency. The same data identifies Bitcoin as the largest cryptocurrency by market capitalization in the supplied snapshot.

That distinction helps when comparing an asset’s name with a fund name. Both may reference Bitcoin, but that does not make cryptocurrency holdings and fund shares the same thing.

BeInCrypto’s October 31, 2026 reporting, for example, distinguishes Bitcoin from US spot Bitcoin exchange-traded funds. Its account describes fund shares that large trading firms can return in exchange for Bitcoin or cash during redemptions.

Supply, price and market value

What is Bitcoin’s maximum supply?

According to CoinGecko’s Bitcoin market data, the listed maximum supply was 21 million BTC as of October 31, 2026. Its reported circulating supply was lower, as the snapshot below shows.

The supply limit and the price are separate entries. A maximum supply figure is not a forecast of what a coin will be worth.

Measure October 31, 2026, 13:26 UTC BTC price $77,421 Circulating supply 20,105,365 BTC Maximum supply 21,000,000 BTC Market capitalization $1,556,585,670,271

These figures describe CoinGecko’s snapshot at the stated time, not a continuously updated quote. Price is the quoted value per coin; market capitalization is the reported total market valuation. Neither is a forecast of future sale proceeds.

Brass Bitcoin emblem beside an open ledger and notebook on a research desk Supply, price and market capitalization describe different aspects of Bitcoin.

Bitcoin ownership versus ETF exposure

The cryptocurrency should also be distinguished from an investment product linked to it. According to BeInCrypto’s October 31, 2026 report, US spot Bitcoin ETFs give brokerage customers stock-like access to Bitcoin exposure.

The outlet reported $643.33 million in net outflows from those funds on October 30, citing SoSoValue. It also reported that the funds held $98.14 billion in assets. These are fund-level figures, not Bitcoin’s total market capitalization.

The practical distinction is the arrangement: fund shares are not described as BTC balances. BeInCrypto explains that large trading firms return shares for Bitcoin or cash when investors redeem. Its report does not provide a complete account of each fund’s fees or custody terms.

What risks belong in a Bitcoin explanation?

Price risk is visible in CoinGecko’s October 31 snapshot. Bitcoin was up 0.2% over 24 hours but down 3.78% over seven days and 7.66% over 30 days. The direction changes with the measurement period.

Custody deserves separate attention. BeInCrypto reported on October 31 that Binance had suspended deposits and withdrawals following a reported theft. That report concerns an exchange incident; it does not establish that Bitcoin’s underlying system failed.

The distinction does not erase the access problem. BeInCrypto also reported Binance’s statement that user funds were safe. That is the exchange’s assurance, not independent verification of every customer’s holdings. The supplied reporting does not establish when deposits and withdrawals would resume.

Partially open secure-storage compartment illustrating questions about custody and access Custody and access are separate questions from Bitcoin's market price.

How to read Bitcoin claims critically

Separate observed data from interpretation. CoinGecko’s timestamped price is a market observation. A prediction about a future rally remains a forecast, even when it comes from an experienced investor.

Bitcoin Magazine’s October 31 interview with Log Scale Investments CEO Mike Flaum presents his bullish views on Bitcoin-related businesses. The publication explicitly identifies participants’ views as their own. Those opinions do not establish future results.

An explanation of Bitcoin need not depend on a bullish forecast. The relevant checks are the timestamp, whether the claim concerns BTC or a related product, and whether it describes a reported event or someone’s interpretation.

FAQ

What was Bitcoin’s quoted price?

CoinGecko quoted BTC at $77,421 on October 31, 2026, at 13:26 UTC. That figure applies to the supplied snapshot.

Is BTC different from Bitcoin?

No. CoinGecko identifies BTC as Bitcoin’s trading symbol. Bitcoin ETF shares, however, are a separate product.

What supply limit does CoinGecko list?

CoinGecko listed a maximum supply of 21 million BTC. Its seven-day price decline illustrates why that figure should not be read as protection against losses.

Is a Bitcoin ETF the same as holding BTC?

No. BeInCrypto describes spot ETFs as brokerage-accessible Bitcoin exposure and separately describes fund shares and Bitcoin in its account of redemptions.

Sources

This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrencies are highly volatile; always do your own research before investing.