Microsoft Corp. has canceled some leases for US data center capacity, according to TD Cowen, raising broader concerns over whether it’s securing more AI computing capacity than it needs in the long term.

TD Cowen noticed Microsoft doing something strange on Friday. The Open AI partner and tech giant appeared to be cancelling data center leases. According to the market analysts, this is part of a wider pattern. TD Cowen said Microsoft had an “oversupply” problem. It’s another datapoint that points to Big Tech’s nervousness around its big bet on AI.

Microsoft’s lease cancellations were detailed on Friday in a note from TD Cowen analysts. According to Bloomberg, the investment bank believes that Microsoft has voided contracts for data centers with about 200 megawatts in combined capacity. One megawatt corresponds to the electricity usage of several hundred households.