(ShareCast News) - British & American Investment Trust outperformed the FTSE 100 and All Share indices in the first six months of the year.In a statement released on Friday, the company said it had recorded 5.3% rise in net assets in the half to 30 June, compared with a 0.7% decline in the FTSE 100 index and a 1.1% rise in the All Share index.The increase in net assets was attributed to a rise in the value of Geron Corp, British & American's main investment.The London-listed company, however, said its pre-tax profit more than halved to £700,000, due to a change in the way the company presents its accounts."Looking forward, we will consider any new investment opportunities in the light of developments during the remaining months of the year," the trust said.British & American Investment Trust shares were up 3.53% to 88.00p at 1604 BST on Friday.