Oracle Corp. regaled Wall Street on Monday with talk about the future, enormous demand and some very large cloud-services contracts, but its stock continued a downward trend over concerns about growing costs associated with building out more data centers.

Oracle Corp. reported disappointing quarterly results and gave a sales and profit forecast for the current quarter that fell short of analysts’ estimates.

We are on schedule to double our data center capacity this calendar year,” Oracle Chief Technology Officer Larry Ellison said in the earnings release. “Customer demand is a