What is the flippening?

Can a coin overtake Bitcoin without its price ever reaching the price of one BTC? Yes, because the comparison is about total market size, not the price per coin. That’s the distinction you need to understand the debate around the flippening, meaning a possible reversal in the rankings.

Market capitalization (market cap) is calculated by multiplying a coin’s current price by its circulating supply. Think of two apartment buildings: one may have more expensive apartments, but the other has more of them and a higher total value. Likewise, a lower price per coin doesn’t mean a smaller market cap.

In a purely hypothetical example, if Bitcoin’s market cap were €1 trillion and Ether’s €900 billion, the flippening would require the second to overtake the first. That could happen through a rise in ETH, a drop in BTC or a combination of changes in their prices and circulating supply.

Why it matters

The debate reflects the competition between two different approaches: Bitcoin as digital money and a store of value, and Ethereum as a network for smart contracts and applications. A change in their ranking would carry symbolic weight and could affect how the market views them.

We find it useful to separate the interest in such a reversal from the conclusion that one network is technologically superior. Market cap measures market valuation, not security, decentralization or real-world use.

What to watch out for

You’ll also see the term used for other comparisons, such as when one cryptocurrency overtakes another in trading volume. Without further clarification, though, the flippening usually refers to ETH versus BTC by market cap.

Also, market cap isn’t the total amount of money invested in a coin. Nor does a momentary overtake guarantee the ranking will hold. If you read a headline about it, check which figures it compares and what point in time it refers to.