Analysis-US corporate AI debt surge tests investor limits as fatigue emerges

The surge in debt issuance by major technology companies to fund artificial intelligence expansion is testing the limits of investor appetite, according to market analysts and fund managers.
While companies such as Amazon and Alphabet maintain strong credit ratings, bond investors are increasingly demanding higher yields to compensate for the volume of new offerings entering the market. Tech corporate bond spreads, which measure the extra yield demanded over U.S. Treasuries, have widened signif