Xpeng's Hong Kong shares hit new high on joining Hang Seng indexes

** Hong Kong shares of Chinese electric-car maker Xpeng Inc rise 6.6% to HK$172.40, their highest since listing on July 7, and on course for fifth consecutive session of gains

** Stock, sixth biggest percentage gainer in the Hang Seng Composite Index , set for best day since listing

** Xpeng meets the Fast Entry Rule and joins the Hang Seng Composite Index and Hang Seng Consumer Goods & Services Index from July 21

** China's e-commerce major Alibaba Group takes long position in Xpeng, buying 191.9 mln, or 14.97%, of the company's Hong Kong shares, filing shows

** The Hong Kong Hang Seng consumer goods and services index climbs 1.02% and the Hang Seng Composite Index jumps 1.5%

** The Hang Seng China Enterprises Index rises 1.6% and the benchmark index gains 1.7%