(Reuters) -Oracle Corp bonds have taken a hit in recent days following a report that the cloud and artificial ​intelligence service provider plans to add another $38 billion to its heavy ‌debt load to fund its AI infrastructure, according to analysts and investors. “So what’s interesting is most of the (major tech) companies ‍are trying to sustain their (stock) buyback programs at the same time that they’re spending on capex currently and to do that, they’re actually borrowing and so they’​re using debt,” said Lisa Shalett, chief investment officer of ‌Morgan Stanley Wealth Management. Renewed questions around the safety of this bet appeared to have surfaced in trading of Oracle’s bonds this week, following reporting by CNBC on Thursday that Oracle plans to assume an additional $38 billion in debt.