The Globe and Mail reports in its Friday edition that investor concerns about debt from artificial intelligence infrastructure are affecting shares of several companies and driving bond yields to distressed levels. The Globe's Irene Galea writes that CoreWeave, a specialized "neocloud" AI compute provider, is an anchor tenant for Bell Canada parent BCE's planned AI datacentre in Saskatchewan. CoreWeave's shares have been among the most affected this week, as investors signal unease about extensive AI-related development financed with debt. CoreWeave's stock dropped by 15 per cent on the Nasdaq exchange on Wednesday before bouncing back up by nearly 6 per cent on Thursday, buoyed in the afternoon when Nvidia chief executive officer Jensen Huang publicly signalled his support for the company. Nvidia has invested billions of dollars into AI and neocloud companies, including CoreWeave. The stock closed 15 per cent below where it started the week, as investors instead directed their money to international bond markets. The company's bond yields have risen above 15 per cent in recent days, a level investors consider severely distressed. The cost of CoreWeave's credit default swaps has also soared to distressed levels.