UPDATE 2-UK Stocks-Factors to watch on July 21
(Adds company news)
July 21 (Reuters) - Britain's FTSE 100 index is seen opening down 16 points, or 0.2 percent, on Thursday, according to financial bookmakers, with futures down 0.2 pct ahead of cash market open.
* The UK blue chip index ended up 0.5 percent at 6,728.99 points on Wednesday, its best closing level since August 2015, boosted by a rise in insurers such as Admiral Group and Legal & General.
* SABMILLER: Anheuser-Busch InBev and SABMiller received approval for their $107 billion merger from U.S. antitrust regulators on Wednesday after the companies agreed to unload beer assets and preserve competition from independent craft brewers.
* HSBC: A senior HSBC Holdings Plc manager has been arrested and charged alongside a former foreign exchange executive with engaging in a scheme to front-run a $3.5 billion transaction by one of the bank's clients, U.S. prosecutors said on Wednesday.
* SSE PLC: Britain's second-biggest energy supplier SSE said on Thursday it had lost another 50,000 power and gas customers over the three months ending June 30, further reflecting the trend of small suppliers grabbing market share from incumbents.
* DAILY MAIL AND GENERAL TRUST: The owner of Britain's Daily Mail newspaper , which urged Britons to vote out at the EU referendum, said on Thursday that the Brexit result had sparked uncertainty in advertising and property markets.
* AO WORLD: British online electricals retailer AO World said its full-year expectations were unchanged, despite economic uncertainty following the Brexit vote and its potential effect on consumer confidence and suppliers' foreign exchange exposure. Continuación...