According to BlockBeats, on May 20, data from Coinglass revealed that the Grayscale Ethereum (ETH) Trust (ETHE) and Ethereum Classic (ETC) Trust are currently experiencing negative premium rates of 22.72% and 41.95% respectively. Previously, BlockBeats reported that the negative premium rate of Grayscale ETHE had narrowed to 8.17% on March 9. The current negative premium rates indicate a significant increase in the discount on these trusts. The data suggests a shift in investor sentiment towards these specific cryptocurrency investments. However, the reasons behind this shift remain unclear and further analysis is required to understand the market dynamics at play.