According to @WatcherGuru, Bank of America has officially advised clients to allocate up to 4% of their portfolios to Bitcoin (BTC) and cryptocurrencies, source: @WatcherGuru on X, December 2, 2025. The reported guidance establishes a clear portfolio allocation cap that frames client exposure to BTC and broader crypto assets, source: @WatcherGuru on X, December 2, 2025.