Why is cbETH worth less than ETH?

Could you please explain why cbETH is valued at a lower price compared to ETH? I'm curious to understand the factors that contribute to this price difference. Could it be due to differences in liquidity, market demand, or the underlying tokenomics of these two assets? Is there a fundamental reason behind this disparity, or is it merely a temporary market fluctuation? I'm interested in hearing your insights on this matter.