Bitcoin Mining Profitability Declined More Than 7% in September: Jefferies Posted On October 20, 2025 Bitcoin mining margins tightened in September as a rising network hashrate and a slide in BTC prices dragged profitability lower Tags:Crypto, Doge, News Related Posts First XRP ETF in U.S. Racks up $5M on Debut in Teucrium’s ‘Most Successful Launch’ Brazil Sets Flat 17.5% Tax on Crypto Profits, Ending Exemption for Smaller Investors Bitcoin Retail Exits As Wallets Decline At Fastest Pace In 2 Years About The Author DogeMan