https://www.reuters.com/article/us-alibaba-hongkong-pricing/alibaba-to-exercise-full-retail-tranche-in-hong-kong-listing-sources-idUSKBN1XT2W0 >Alibaba has exercised its full retail tranche, from 2.5% to 10%, in its Hong Kong secondary listing, thanks to oversubscription, three sources with direct knowledge of the matter told Reuters.