Seoul stocks closed at a fresh peak on Wednesday, just an inch away from the 6,700 mark, as investors bet chip demand will remain solid amid woes over the artificial intelligence boom. The benchmark Korea Composite Stock Price Index added 49.88 points, or 0.75 percent, to a fresh record high of 6,690.90 after rising as high as to 6,716.20, extending its gains to a third consecutive day. Trade volume was heavy at 712.3 million shares worth 31 trillion won ($21 billion), with winners outnumbering