Stellar (XLM) led the CoinDesk 20 index lower, falling 8.4% in recent trading. The decline in XLM contributed significantly to the overall downturn in the index, which tracks the performance of the top 20 digital assets by market capitalization. Aave (AAVE) also underperformed, dropping 3.9% from Monday's levels. The broader market saw mixed performances, but these declines were notable contributors to the index's downward movement.