According to the Staking Rewards, the Staking Market Cap (valuation of all projects that have a staking mechanism) is currently at 326.7 Billion USD.
We have prepared the list of projects sorted by the USD value of the staked tokens. According to the list, the top 5: Solana, Cardano, Ethereum, Polkadot, and HEX.
We calculated the ratio of staked coins to the circulating supply as well. The leaders are Mina Protocol (99.1%), Curve DAO (87.3%), Waves (81.7%), and Band Protocol (79.9%), Solana (78%).