Wells Fargo & Co. expects blue-chip companies — particularly large technology firms funding massive artificial intelligence investments - to borrow more in 2026. US investment-grade bond issuance could reach as much as $1.85 trillion next year, up from as much as $1.7 trillion in 2025, Maureen O’Connor, global head of high-grade debt syndicate at Wells Fargo, said on "Bloomberg Surveillance."