May 28 (Reuters) - UBS Global Research on Tuesday raised its year-end target for the benchmark S&P 500 index to 5,600 from an earlier projection of 5,400, marking the highest forecast among major brokerages.

The upgraded target reflects an upside of about 5.6% to the index's last close of 5,304.72.

(Reporting by Roshan Abraham in Bengaluru; Editing by Janane Venkatraman )