Startups could cost banks 60% of their profits By: MarketWatch September 30, 2015 at 14:02 PM EDT Non-banks will threaten 10% to 40% of retail banks revenues across five sectors by 2025 and 20% to 60% of bank profits, according to McKinsey. Read More >> Related Stocks: Alibaba Group Holding Ltd Bank of America Citigroup JPMorgan Chase & Co Wells Fargo