In November, JPMorgan reported that the profitability of Bitcoin mining experienced a decline for the fourth consecutive month, indicating a troubling trend for miners as they continue to face financial challenges in an increasingly competitive market. This extended period of reduced profitability may compel miners to reassess their operational strategies and consider the long-term sustainability of their activities within the cryptocurrency ecosystem.
source: https://www.coindesk.com/markets/2025/12/01/bitcoin-mining-profitability-fell-for-fourth-consecutive-month-in-november-jpmorgan