Gabelli Global Utility & Income Trust (GLU) recently announced a dividend of $0.1 per share, payable on 2023-11-22, with the ex-dividend date set for 2023-11-14. As investors look forward to this upcoming payment, the spotlight also shines on the company's dividend history, yield, and growth rates. Using data from GuruFocus, let's delve into Gabelli Global Utility & Income Trust's dividend performance and assess its sustainability.