Core inflation in the United States reached a 31-year high in October, which means investors should position their portfolios to make sure their purchasing power remains intact. AT&T is in the process of transforming its business model to simplify its operations on its core telecom services, while improving the company’s balance sheet. Final Thoughts With inflation perking up, it’s a good idea for investors to make sure their portfolios are well-positioned to absorb the impact of rising prices.