Formosa Petrochemical rises 21 per cent as the Taiex drops

Formosa Petrochemical rose 21 per cent over the past week. The Taiex fell 2.8 per cent over the same period to close at 48,341, with prices to 13 October. The index fell 1.9 per cent in the latest session, though it is up 2.5 per cent over the past month and up 67 per cent year to date.

Among the 150 largest listed companies, 100 fell and 42 rose in the session on 13 October.

King Slide Works, an electronic components maker, dropped 25 per cent over the week. Visual Photonics Epitaxy, a telecoms and networking group, fell 16 per cent. Chipmaker Elite Semiconductor Microelectronics Technology dropped 14 per cent.

Plastics was the strongest sector over the week, with three companies rising an average of 13 per cent. Shipping and Transportation rose an average of 6.4 per cent across six companies. Other Electronics fell an average of 6.7 per cent across 11 companies, while Biotechnology and Medical Care dropped an average of 6.1 per cent across three.