By November 2021, over ** billion Cardano tokens were issued and in active circulation - getting closer to the coin's maximum supply. Similar to Bitcoin but unlike Ethereum, the ADA token has a fixed supply limit with only ** billion cryptocurrencies being able to ever exist in the coin's lifetime. Whilst this does not necessarily mean the Cardano price will go up, a limited supply could help to fuel demand whilst the tokens are still generally available.

The staking values of both Solana and Cardano made up around ** percent of their circulating supply, a percentage significantly higher than for Ethereum. This difference stems from how the cryptocurrencies are created. Ethereum 1.0, similar to Bitcoin, relies on a mechanism called "Proof-of-Work" or PoW, and is similar to mining: Lots of processing power is used to verify transactions on the blockchain and those who do all that verification work — the "miners" — get rewarded with a predetermined amount of crypto. As this process became more energy-consuming and too complicated for individuals to perform — alongside the rapid growth of decentralized finance (DeFi) protocols that demanded even more verifications — another mechanism appeared: "Proof-of-Stake" or POS. Here, people — or "validators" — commit — or "stake" — their own cryptocurrency in an automated system — often a wallet, where people will simply hold their crypto — which at certain times will randomly pick a person who gets to validate a batch of blockchain transactions. Same as before, validation leads to new cryptocurrency as a reward — essentially acting as interest after initial investment. As the amount of crypto needed can be considerable, there are also so-called "staking pools" where groups of people gather the coins needed for — or "delegate" to — an external validator, and still get the rewards. Cardano and Solana only use proof of stake, whereas the relatively new Ethereum 2.0 is also relying on it.

Swiss cryptocurrency Cardano (ADA) witnessed a price surge of nearly 100 percent in seven days in early February 2021, amid high interest from investors. One reason for this interest is the digital coin's close relation to Ethereum (ETH), as mathematician Charles Hoskinson co-founded both virtual currencies. Moreover, like Ethereum, ADA has an open-source format, meaning anybody can develop this currency further. As of August 27, 2025, one ADA token was worth 0.87 U.S. dollars.