The answer to this question is not entirely clear. Some people believe that Bitcoin is a commodity, while others believe that it is a currency or a security.
A commodity is a physical good that can be bought and sold. Examples of commodities include gold, oil, and wheat. Bitcoin does not have a physical form, so it does not fit the traditional definition of a commodity.
However, Bitcoin does have some characteristics of a commodity. It is scarce, divisible, and fungible. Scarcity means that there is a limited supply of Bitcoin. Divisibility means that Bitcoin can be divided into smaller units. Fungible means that one Bitcoin is interchangeable with another Bitcoin.
Ultimately, the question of whether Bitcoin is a commodity is a legal one. The Commodity Futures Trading Commission (CFTC) has not yet ruled on whether Bitcoin is a commodity.