NEW YORK (Reuters) - Foreign holdings of US Treasurys rose to an all-time peak in July, data from the Treasury Department showed on Thursday, hitting record highs for a third straight month, led by gains in holdings from Japan and the United Kingdom. Holdings of US Treasurys surged to $9.159 trillion in July, up from $9.126 trillion the previous month. Compared with a year earlier, Treasuries owned by foreigners were up nearly 9%. China's holdings of Treasurys, on the other hand, dropped to $730.7 billio ...