Nikkei gains 1.5 pct buoyed by U.S. GDP, earnings

* Close of Nikkei, Topix delayed due to system glitch -TSE

* Electronics companies buoy market on improved outlooks

* Exporters rise after U.S. GDP growth lifts Wall Street

* Nikkei down 1% in Oct., but up about 13% this year

By Aiko Hayashi and Elaine Lies

TOKYO, Oct 30 (Reuters) - Japan's Nikkei average rose 1.5 percent on Friday, buoyed by shares of tech companies with improved earnings prospects such as Pioneer Corp (6773.T: Quote, Profile, Research), while exporters climbed on data showing the U.S. economy had returned to growth.

The close of the Nikkei and the broader Topix .TOPX was delayed due to problems with the close of one share -- Fast Retailing (9983.T: Quote, Profile, Research), operator of the Uniqlo casual clothing chain and one of the most popular stocks on the main board.

The Tokyo bourse said while it was still looking into the cause, the problem was believed to be a glitch with the trading system.

Analysts said that while individual stocks were either being bought or sold on their results during the peak earnings day for this season, there hadn't been enough bullish results to push the market beyond the lift given by U.S. GDP data.