Finance Warren Buffett's Successor, Greg Abel, Has 63% of Berkshire's $360 Billion Portfolio Concentrated in 5 Superstar Stocks Business Nvidia becomes one of world's biggest strategic tech backers as equity investments soar to $99 billion Health Trial reduces inpatient dementia beds in north-east England Business Unemployment claims tick up to 206,000 but remain at historically low levels Finance Warren Buffett's Successor, Greg Abel, Has 63% of Berkshire's $360 Billion Portfolio Concentrated in 5 Superstar Stocks Business Nvidia becomes one of world's biggest strategic tech backers as equity investments soar to $99 billion Health Trial reduces inpatient dementia beds in north-east England Business Unemployment claims tick up to 206,000 but remain at historically low levels