Star Copper is trading 5.59% up at $0.60, with no clear catalyst identified. - Major U.S. indices are mixed and the materials sector is lower, offering no clear broad-market or sector explanation. - No October 1 company announcement was found in its news archive. Its latest listed release, dated September 29, reported strong visual copper mineralization in drill hole S-076 at Star Main, but did not link the news to the share-price movement.