# Cash-Flow Tokens Lack Capital Efficiency

Many Decentralized Finance (DeFi) tokens, such as stETH and rETH, offer rewards for&#x20;holding, but they require users to lock their tokens for a long time. This means the tokens&#x20;can't be used elsewhere while they are locked, which limits how users can move or use their&#x20;funds in other DeFi activities.

For example, approximately 33,841,020 ETH was staked in Ethereum's proof-of-stake&#x20;system, which represents roughly 28% of the total ETH supply. However, most of this staked&#x20;ETH couldn't be reused for other opportunities because it was tied up. (Source: Coinbase)\
This makes it difficult for users to get the most out of their assets.



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