Ethereum whale groups are experiencing negative unrealized profit margins across all categories, according to analyst Darkfost. The prolonged pullback in Ethereum's price has led to significant pressure on holders, with unrealized profit rates for whales holding 1,000 to 10,000 ETH at -0.21%, 10,000 to 100,000 ETH at -0.18%, and over 100,000 ETH at -0.08%. This situation is notable as Ethereum's price has not yet returned to its low from last April. Historically, such pressure on whale groups has often indicated a medium-term bottom for Ethereum. However, if the price continues to decline, these large holders may be forced to sell their substantial Ethereum holdings, potentially impacting the market further.