The phrase "disappointed investors" means that people who have invested their money have become unhappy or unsatisfied with the results or performance of their investments. Full definition
But lower - than - expected German economic growth disappointed investors elsewhere. (sandiegouniontribune.com)
You can always be sure that they will try to not disappoint an investor. (fivepercentstocks.com)
The company also reiterated its 2018 forecast, which may have disappointed some investors expecting a brighter outlook similar to other lenders, who are benefiting from rising interest rates and the tax cut. (cnbc.com)