[Hang Seng Indexes Company: Hang Seng Hong Kong-US Technology Index Adds SpaceX to the Designated U.S.-Listed Constituent Stock List] BlockBeats News, May 27, according to official announcements, Hang Seng Indexes Company has announced updates to the calculation methodology of the Hang Seng Hong Kong-US Technology Index: Space Exploration Technologies Corp. (SpaceX) has been added to the designated U.S.-listed constituent stock list of the Hang Seng Hong Kong-US Technology Index. The weights of the eight U.S.-listed constituent stocks will be recalculated to equal weight after the close of trading on SpaceX's 7th trading day. The newly added constituent stock and the updated constituent stock weights will take effect on SpaceX's 11th trading day. The aforementioned changes will be implemented upon confirmation of SpaceX's listing.