Cardano (CRYPTO: ADA) minted some millionaires after its market debut. The cryptocurrency started trading at $0.025 in 2017 and surged to a record high of $3.09 in 2021. That rally would have turned a $10,000 investment into $1.24 million.

Cardano attracted a lot of attention because its blockchain processed transactions at a faster rate than Ethereum (CRYPTO: ETH). Like Ethereum, Cardano was a proof of stake (PoS) blockchain that supported smart contracts for creating decentralized apps (dApps), non-fungible tokens (NFTs), and other crypto assets. Cardano also set its fees by the size and computing power of each transaction, which made its pricing more predictable than Ethereum's congestion-based gas fees.

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Source Fool.com