MIDEAST STOCKS — Threats by Yemen's Houthis to hit Saudi Arabia again rattle Gulf bourses
(Updates to closing prices, analyst comment) By Ateeq Shariff Oct 15 (Reuters) — Gulf markets ended lower on Thursday as the Houthis threatened more attacks on Saudi Arabia, putting the country's benchmark index on track for a sixth weekly loss. The Saudi index dropped 0.3%, pulled down by a 3.1% slide in ACWA Power Co